DOCSLIB.ORG

The American Ceramic Society 25Th International Congress On

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

The American Ceramic Society 25th International Congress on Glass (ICG 2019) ABSTRACT BOOK June 9–14, 2019 Boston, Massachusetts USA Introduction This volume contains abstracts for over 900 presentations during the 2019 Conference on International Commission on Glass Meeting (ICG 2019) in Boston, Massachusetts. The abstracts are reproduced as submitted by authors, a format that provides for longer, more detailed descriptions of papers. The American Ceramic Society accepts no responsibility for the content or quality of the abstract content. Abstracts are arranged by day, then by symposium and session title. An Author Index appears at the back of this book. The Meeting Guide contains locations of sessions with times, titles and authors of papers, but not presentation abstracts. How to Use the Abstract Book Refer to the Table of Contents to determine page numbers on which specific session abstracts begin. At the beginning of each session are headings that list session title, location and session chair. Starting times for presentations and paper numbers precede each paper title. The Author Index lists each author and the page number on which their abstract can be found. Copyright © 2019 The American Ceramic Society (www.ceramics.org). All rights reserved. MEETING REGULATIONS The American Ceramic Society is a nonprofit scientific organization that facilitates whether in print, electronic or other media, including The American Ceramic Society’s the exchange of knowledge meetings and publication of papers for future reference. website. By participating in the conference, you grant The American Ceramic Society The Society owns and retains full right to control its publications and its meetings. the right to use your name and photograph for such purposes. All postings become The Society has an obligation to protect its members and meetings from intrusion by the property of The American Ceramic Society. others who may wish to use the meetings for their own private promotion purpose. Literature found not to be in agreement with the Society’s goals, in competition with During oral sessions conducted during Society meetings, unauthorized Society services or of an offensive nature will not be displayed anywhere in the vicinity photography, videotaping and audio recording is prohibited. Failure to comply of the meeting. Promotional literature of any kind may not be displayed without the may result in the removal of the offender from the session or from the remainder of Society’s permission and unless the Society provides tables for this purpose. Literature the meeting. not conforming to this policy or displayed in other than designated areas will be disposed. The Society will not permit unauthorized scheduling of activities during Registration Requirements: Attendance at any meeting of the Society shall be its meeting by any person or group when those activities are conducted at its meeting limited to duly registered persons. place in interference with its programs and scheduled activities. The Society does not Disclaimer: Statements of fact and opinion are the responsibility of the authors object to appropriate activities by others during its meetings if it is consulted with alone and do not imply an opinion on the part of the officers, staff or members of The regard to time, place, and suitability. Any person or group wishing to conduct any American Ceramic Society. The American Ceramic Society assumes no responsibility activity at the time and location of the Society meeting must obtain permission from for the statements and opinions advanced by the contributors to its publications or the Executive Director or Director of Meetings, giving full details regarding desired by the speakers at its programs; nor does The American Ceramic Society assume time, place and nature of activity. any liability for losses or injuries suffered by attendees at its meetings. Registered Diversity Statement: The American Ceramic Society values diverse and inclusive names and trademarks, etc. used in its publications, even without specific indications participation within the field of ceramic science and engineering. ACerS strives thereof, are not to be considered unprotected by the law. Mention of trade names of to promote involvement and access to leadership opportunity regardless of race, commercial products does not constitute endorsement or recommendations for use ethnicity, gender, religion, age, sexual orientation, nationality, disability, appearance, by the publishers, editors or authors. geographic location, career path or academic level. Final determination of the suitability of any information, procedure or products Visit the registration desk if you need access to a nursing mother’s room or need for use contemplated by any user, and the manner of that use, is the sole responsibility further assistance. For childcare services, please check with the concierge at individual of the user. Expert advice should be obtained at all times when implementation is being hotels for a listing of licensed and bonded child care options. considered, particularly where hazardous materials or processes are encountered. The American Ceramic Society plans to take photographs and video at the Copyright © 2019. The American Ceramic Society (www.ceramics.org). All rights reserved. conference and reproduce them in educational, news or promotional materials, 2 25th International Congress on Glass Table of Contents Opening Session ......................................................................... 9 SI: Glass Structure and Chemistry Session 4: Chalcogenide Glass Structure and Chemistry I................................... 9 Session 8: Crystallization of Glasses and Glass-Ceramics I (TC 07) .......................... 11 Session 10: Hybrid Glasses and Metal-Organic Framework Glasses ........................ 12 SII: Glass Physics Session 4: Topology and Rigidity I........................................................ 14 Session 5: Artificial Intelligence and Machine Learning in Glass Science I (TC 27) ........... 15 Session 5: Artificial Intelligence and Machine Learning in Glass Science II (TC 27) .......... 16 Session 7: Mean-Field and Low-Dimensional Theories of Glasses .......................... 17 Session 12: Electromagnetic Properties of Glass .......................................... 18 SIV: Emerging Applications of Glass Session 2: Glasses in Healthcare I (TC 04) ................................................. 19 Session 3: Emerging Technologies I ...................................................... 21 Session 3: Laser Processing of Optical Devices ............................................ 22 Session 7: Photosensitive Glasses and Glass-ceramics..................................... 23 SV: Glass Education Glass Education (TC 23).................................................................. 25 Poster Session 1 ....................................................................................................... 27 Norbert J. Kreidl Award for Young Scholars............................................... 40 SI: Glass Structure and Chemistry Session 1: Definition of Network Formers and Network Modifiers (TC03 & TC26) ........... 41 Session 4: Chalcogenide Glass Structure and Chemistry II ................................. 42 Session 8: Crystallization of Glasses and Glass-Ceramics II (TC 07) ......................... 44 Session 8: Crystallization of Glasses and Glass-Ceramics III (TC 07) ......................... 46 25th International Congress on Glass 3 SII: Glass Physics Session 4: Topology and Rigidity II ....................................................... 48 Session 5: First Principles based MD Simulations and Calculations of Glass Properties (TC 27).................................................................. 50 Session 5: Development and Evaluation of Empirical Potential for Glass Simulations (TC 27) ................................................................ 51 Session 5: Simulations of Fracture and Mechanical Behavior of Glasses (TC 27)............. 51 Session 5: Simulations of Crystal Growth and Formability (TC 27).......................... 52 Session 6: Pharmaceutical and Chemical Durability ....................................... 53 Session 6: Surface Structure and Reactivity ............................................... 54 Session 6: Surface Films and Coatings .................................................... 55 Session 6: Mechanical and Stress......................................................... 56 Session 8: Optical Properties of Glass I.................................................... 56 Session 8: Optical Properties of Glass II ................................................... 57 Session 8: Optical Properties of Glass III .................................................. 58 Session 8: Optical Properties of Glass IV .................................................. 59 Session 9: Fracture (TC 06) ............................................................... 60 Session 9: Densification and Compression (TC 06) ........................................ 61 SIII: Glass Technology and Manufacturing Session 4: Glass Forming Operations ..................................................... 61 Session 7: 3D Printing of Glass and Rapid Prototyping .................................... 63 SIV: Emerging Applications of Glass Session 2: Glasses in Healthcare II (TC 04)................................................. 65 Session 2: Glasses in Healthcare III (TC 04) ................................................ 67 Session
Recommended publications
  • Thermal Shock

    Thermal Shock

    TEACHER INSTRUCTIONS Thermal Shock Objective: To illustrate thermal expansion and thermal shock. Background Information: In physics, thermal expansion is the tendency of matter to increase in volume or pressure when heated. For liquids and solids, the amount of expansion will normally vary depending on the material’s coefficient of thermal expansion. When materials contract, tensile forces are created. When things expand, compressive forces are created. Thermal shock is the name given to cracking as a result of rapid temperature change. From the laboratory standpoint, there are three main types of glass used today: borosilicate, quartz, and soda lime or flint glass. Borosilicate glass is made to withstand thermal shock better than most other glass through a combination of reduced expansion coefficient and greater strength, though fused quartz outperforms it in both respects. Some glass-ceramic materials include a controlled proportion of material with a negative expansion coefficient, so that the overall coefficient can be reduced to almost exactly zero over a reasonably wide range of temperatures. Improving the shock resistance of glass and ceramics can be achieved by improving the strength of the materials or by reducing its tendency to uneven expansion. One example of success in this area is Pyrex, the brand name that is well known to most consumers as cookware, but which is also used to manufacture laboratory glassware. Pyrex traditionally is made with a borosilicate glass with the addition of boron, which prevents shock by reducing the tendency of glass to expand. Demo description: Three different types of glass rods will be heated so that students can observe the amount of thermal shock that occurs.
  • Department of Materials Science U a L

    Department of Materials Science U a L

    A N N Department of Materials Science U A L R E P O R Glass and Ceramics T 2 0 1 5 Preface In June 2015 we could welcome our new colleague Prof. Kyle G. Webber heading the func- tional ceramics department. Together with two research fellows from his DFG funded Emmy- Noether-Group he started his research activities in the field of ferroelectric ceramics. After transfer of unique experimental facilities from TU Darmstadt to FAU Erlangen his experimental equipment is ready for work. In the glass department (Prof. Dominique de Ligny) research centers on a better understanding of light interaction with glass as well as response to external stress. Laser glass interaction is ex- plored for new functionalization of glass by surface texturing. The disordered structure of glass imposes the development of specific instrumentation as vibrational spectroscopy. A new setup coupling Raman and Brillouin spectroscopy as well as a calorimeter allows new and unique pro- spective ways. In the biomaterials department (Prof. Stephan E. Wolf), the DFG funded Emmy-Noether- Research Group on biomimetic materials started the research activities after completing the refur- nishment of the laboratories. Work is focused on identifying the process-structure-property rela- tionships in biominerals and subsequent in vitro mimesis by biomimetic crystallization at ambient conditions. Initial results were published in Nature Communications (see publications). Work of the research group on cellular ceramics (Dr. Tobias Fey) is centered on microstruc- ture characterisation applying X-ray microtomography and testing of the mechanical and thermal properties of cellular ceramics. Massive strain amplification lattice structures were investigated by experimental and theoretical approaches.
  • United States Patent (19) 11 Patent Number: 6,114,039 Rifqi (45) Date of Patent: Sep

    United States Patent (19) 11 Patent Number: 6,114,039 Rifqi (45) Date of Patent: Sep

    USOO611.4039A United States Patent (19) 11 Patent Number: 6,114,039 Rifqi (45) Date of Patent: Sep. 5, 2000 54 PROCESS FOR TREATING GLASS FOREIGN PATENT DOCUMENTS SUBSTRATES 0579.399 1/1994 European Pat. Off.. O O O 592 237 4/1994 European Pat. Off.. 75 Inventor: Francoise Rifai, Paris, France 96 11888 4/1996 WIPO. 73 Assignee: Saint Gobain Vitrage, Courbevoie, OTHER PUBLICATIONS France Database WPI, Week 30, Derwent Publications Ltd., Lon don. GB: AN 96-292416, XPOO2O17839 & JP 08 124153 21 Appl. NoNo.: 08/930,2781930, A (Nippons a 1-1s Sheet Glass Ltd)s May 17, 1996, see abstract. 22 PCT Filed: Feb. 6, 1997 Chemical abstracts, vol. 114, No. 4, Jan. 28, 1991, Colum bus, Ohio, US; abstract No. 28896t, p. 299; P002017838, see 86 PCT No.: PCT/FR97/00233 abstract & JP 02 153847 A (Murase Glass Co Ltd) Jun. 13, S371 Date: Dec. 19, 1997 1990. Data Base WPI, Week 47, Derwent Publications Ltd., Lon S 102(e) Date: Dec. 19, 1997 don GB; AN 88-336490, XP002017840 & SU 1395597 A 87 PCT Pub. No.: WO97129058 (Buraev AMI), May 15, 1998, see abstract. 87) U O / Database WPI, Week 43, Derwent Publications Ltd., London PCT Pub. Date: Aug. 14, 1997 GB; AN 82–91185e; XP002017841 & JP 57 149 850 A 30 Foreign Application Prioritv D (Tokyo Shibaura Elec Ltd), Jun. 29, 1989, see abstract. 30 oreign Application Priority Data Database WPI, Week 14, Derwent Publications, Ltd., Lon Feb. 7, 1996 FR France ................................... 96 01484 don GB; AN95-102849, XPOO2017842, & JP 07 129 169 51 Int.Ill.
  • Topological Phases, Boson Mode, Immiscibility Window and Structural

    Topological Phases, Boson Mode, Immiscibility Window and Structural

    Topological Phases, Boson mode, Immiscibility window and Structural Groupings in Ba-Borate and Ba-Borosilicate glasses A dissertation submitted to Division of Research and Advanced Studies University of Cincinnati In partial fulfillment of the requirements for the degree of Doctor of Philosophy (Ph.D.) In the Department of Electrical Engineering and Computing Systems Of the College of Engineering and Applied Sciences October 2015 by Chad Holbrook M.S., University of Cincinnati, 2007 B.S., Northern Kentucky University, 2003 Committee Chair: Punit Boolchand, Ph.D. i Abstract In a dry ambient,(BaO)x(B2O3)100-x (a pseudo-binary glass system) were synthesized over a wide composition range, 0 mol% < x < 40 mol% , by utilizing induction melting precursors. These high quality glasses were comprehensively examined in Modulated DSC, Raman Scattering, Infrared reflectance experiments. Raman Scattering experiments and the analysis of the symmetric stretch of intra-ring Boron-Oxygen (BO) bonds (A1’) of characteristic “mixed-rings”, permits the identification of Medium Range Structure (MRS) which form in the titled glasses. These modes consist of a triad of modes (705 cm-1, 740 cm-1 and 770 cm-1), and their scattering strengths display a positive correlation to the nucleation of characteristic structural groupings (SGs); analogous to structural groupings found in the corresponding crystalline phases of Barium-Tetraborate (x = 20 mol%), and Barium-Diborate (x = 33 mol%). Identification of the SG’s permit an understanding of the extended range structure apparent in these modified borate glasses. Furthermore, a microscopic understanding of the Immiscibility range in the titled glasses in the 0 mol% < x < 15 mol% range, can be traced to the deficiency of Barium that prohibits nucleation of the Barium-Tetraborate species.
  • Fabrication of Integrated Optofluidic Circuits in Chalcogenide Glass Using Femtosecond Laser Direct Writing

    Fabrication of Integrated Optofluidic Circuits in Chalcogenide Glass Using Femtosecond Laser Direct Writing

    University of Central Florida STARS Electronic Theses and Dissertations, 2004-2019 2010 Fabrication Of Integrated Optofluidic Circuits In Chalcogenide Glass Using Femtosecond Laser Direct Writing Troy P. Anderson University of Central Florida Part of the Electromagnetics and Photonics Commons, and the Optics Commons Find similar works at: https://stars.library.ucf.edu/etd University of Central Florida Libraries http://library.ucf.edu This Doctoral Dissertation (Open Access) is brought to you for free and open access by STARS. It has been accepted for inclusion in Electronic Theses and Dissertations, 2004-2019 by an authorized administrator of STARS. For more information, please contact [email protected]. STARS Citation Anderson, Troy P., "Fabrication Of Integrated Optofluidic Circuits In Chalcogenide Glass Using Femtosecond Laser Direct Writing" (2010). Electronic Theses and Dissertations, 2004-2019. 1518. https://stars.library.ucf.edu/etd/1518 FABRICATION OF INTEGRATED OPTOFLUIDIC CIRCUITS IN CHALCOGENIDE GLASS USING FEMTOSECOND LASER DIRECT WRITING by TROY P. ANDERSON B.S. University of Nebraska – Lincoln, 2004 M.S. University of Central Florida, 2007 A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the College of Optics at the University of Central Florida Orlando, Florida Spring Term 2010 Major Professor: Martin Richardson © 2010 Troy Anderson ii ABSTRACT Femtosecond laser direct writing (FLDW) is a versatile process that uses focused femtosecond pulses to modify the physical structure of a material, which can result in a shift of optical properties such as the linear and nonlinear refractive index. If the photon energy of the femtosecond pulses lies below the material bandgap, nonlinear absorption rather than linear absorption becomes the dominant mechanism of energy transfer to the material.
  • Glass Ionomer Bone Cements Based on Magnesium-Containing Bioactive

    Glass Ionomer Bone Cements Based on Magnesium-Containing Bioactive

    Biomed. Glasses 2019; 5:1–12 Research Article Roland Wetzel, Leena Hupa, and Delia S. Brauer* Glass ionomer bone cements based on magnesium-containing bioactive glasses https://doi.org/10.1515/bglass-2019-0001 Received Sep 25, 2018; revised Dec 16, 2018; accepted Jan 14, 2019 1 Introduction Abstract: Glass ionomer cements (GIC) are used in restora- Cements for prosthetic stabilisation or spinal corrective tive dentistry and their properties (low heat during setting, surgeries (vertebroplasty, kyphoplasty) typically consist adhesion to mineralised tissue and surgical metals) make of polymethylmethacrylate [1, 2]. They exhibit a number them of great interest for bone applications. However, den- of drawbacks which include high curing temperatures tal GIC are based on aluminium-containing glasses, and or the presence of unreacted and toxic methacrylic acid the resulting release of aluminium ions from the cements monomers. They also do not bind to bone and are held in needs to be avoided for applications as bone cements. Re- place by mechanical interlocking only [2–6]. As a result, placing aluminium ions in glasses for use in glass ionomer there is a demand for alternative non-toxic cements with cements is challenging, as aluminium ions play a critical bone bonding capability. role in the required glass degradation by acid attack as Glass ionomer cements (GIC) have been used in well as in GIC mechanical stability. Magnesium ions have restorative dentistry as filler or luting materials for been used as an alternative for aluminium in the glass decades [7, 8]. They are formed by an acid-base reaction component, but so far no systematic study has looked into between a polymeric acid and an acid-degradable fluoro- the actual role of magnesium ions.
  • Elaboration and Optimization of Tellurite-Based Materials for Raman Gain Application Guillaume Guéry

    Elaboration and Optimization of Tellurite-Based Materials for Raman Gain Application Guillaume Guéry

    Elaboration and Optimization of Tellurite-based Materials for Raman Gain Application Guillaume Guéry To cite this version: Guillaume Guéry. Elaboration and Optimization of Tellurite-based Materials for Raman Gain Ap- plication. Other. Université Sciences et Technologies - Bordeaux I; Clemson University. Materials science and engineering, 2013. English. NNT : 2013BOR14808. tel-00868798 HAL Id: tel-00868798 https://tel.archives-ouvertes.fr/tel-00868798 Submitted on 2 Oct 2013 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. THÈSE PRÉSENTÉE A L’UNIVERSITÉ BORDEAUX 1 ÉCOLE DOCTORALE DES SCIENCES CHIMIQUES Par Guillaume GUERY POUR OBTENIR LE GRADE DE DOCTEUR SPÉCIALITÉ : Physique et Chimie de la Matière Condensée Elaboration and Optimization of Tellurite-based Materials for Raman Gain Application Directeurs de recherche: M. Thierry CARDINAL, M. Vincent RODRIGUEZ, Mme Kathleen RICHARDSON Soutenue le: 28 Juin 2013 Devant la commission d’examen formée de: M. SIMON, Patrick Directeur de recherche – CEMHTI - CNRS Rapporteur M. MAGLIONE, Mario Directeur de recherche- ICMCB – CNRS Président Mme. RIVERO, Clara Chargée de recherche - Lockheed Examinateur M. SUNDARAM, S.K Professeur – Alfred University Examinateur Mme. RICHARDSON, Kathleen Professeur – University of Central Florida Examinateur M. RODRIGUEZ, Vincent Professeur - ISM - Université Bordeaux 1 Examinateur M.
  • Presentación De Powerpoint

    Presentación De Powerpoint

    Touch Panel The touch panel is an input device, so it needs to be combined with a display and a PC or other device to make a complete touch input system. This is the main structure. • Cover Lens - Can be made of composed of glass, PET, PC or other plastic film. This primarily serves to protect the touch sensor and act as an electrical insulator, though it can also be a functional part of the product, in the case of resistive technology. • Touch Sensor - this is wear the circuity for the touch screen is located and it acts to collect and process the touch signal • Controller - The controller connects between the touch sensor and the PCB. It takes information from the touch sensor and translates it into information that the PCB can understand and act on. • COF - The controller can be located on a chip mounted on the product’s FPC (this is known as Chip on Film – or COF). • COB - The controller can also be on a separate PCB (known as COB – Chip on Board). • Software Drivers - The driver allows the touchscreen and PCB to work together. It tells the computer’s OS how to interpret the touch information that is sent from the controller. Most touch screen drivers today are a mouse emulation type - this makes touching the screen the same as clicking your mouse at the same location on the screen. This allows the touchscreen to work with existing software eases application development costs and lead times. • FPC - a flat printed circuit cable (FPC or FFC) that is used to send data from the screen to the controller, or the display to the board.
  • Highly Porous Polycaprolactone-45S5 Bioglass Scaffolds for Bone Tissue Engineering Paola Fabbri, Valeria Cannillo, Antonella Sola, Andrea Dorigato, Federica Chiellini

    Highly Porous Polycaprolactone-45S5 Bioglass Scaffolds for Bone Tissue Engineering Paola Fabbri, Valeria Cannillo, Antonella Sola, Andrea Dorigato, Federica Chiellini

    Highly porous polycaprolactone-45s5 bioglass scaffolds for bone tissue engineering Paola Fabbri, Valeria Cannillo, Antonella Sola, Andrea Dorigato, Federica Chiellini To cite this version: Paola Fabbri, Valeria Cannillo, Antonella Sola, Andrea Dorigato, Federica Chiellini. Highly porous polycaprolactone-45s5 bioglass scaffolds for bone tissue engineering. Composites Science and Tech- nology, Elsevier, 2010, 70 (13), pp.1869. 10.1016/j.compscitech.2010.05.029. hal-00681645 HAL Id: hal-00681645 https://hal.archives-ouvertes.fr/hal-00681645 Submitted on 22 Mar 2012 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Accepted Manuscript Highly porous polycaprolactone-45s5 bioglass® scaffolds for bone tissue en‐ gineering Paola Fabbri, Valeria Cannillo, Antonella Sola, Andrea Dorigato, Federica Chiellini PII: S0266-3538(10)00225-3 DOI: 10.1016/j.compscitech.2010.05.029 Reference: CSTE 4734 To appear in: Composites Science and Technology Received Date: 21 December 2009 Revised Date: 11 May 2010 Accepted Date: 30 May 2010 Please cite this article as: Fabbri, P., Cannillo, V., Sola, A., Dorigato, A., Chiellini, F., Highly porous polycaprolactone-45s5 bioglass® scaffolds for bone tissue engineering, Composites Science and Technology (2010), doi: 10.1016/j.compscitech.2010.05.029 This is a PDF file of an unedited manuscript that has been accepted for publication.
  • Spectroscopic Properties of Erbium-Doped Oxyfluoride Phospho-Tellurite Glass and Transparent Glass-Ceramic Containing Baf2 Nanoc

    Spectroscopic Properties of Erbium-Doped Oxyfluoride Phospho-Tellurite Glass and Transparent Glass-Ceramic Containing Baf2 Nanoc

    materials Article Spectroscopic Properties of Erbium-Doped Oxyfluoride Phospho-Tellurite Glass and Transparent Glass-Ceramic Containing BaF2 Nanocrystals Magdalena Lesniak 1,* , Jacek Zmojda 2, Marcin Kochanowicz 2 , Piotr Miluski 2 , Agata Baranowska 3 , Gabriela Mach 1, Marta Kuwik 4, Joanna Pisarska 4, Wojciech A. Pisarski 4 and Dominik Dorosz 1 1 Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Av. Mickiewicza 30, 30059 Krakow, Poland; [email protected] (G.M.); [email protected] (D.D.) 2 Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska Street 45D, 15351 Bialystok, Poland; [email protected] (J.Z.); [email protected] (M.K.); [email protected] (P.M.) 3 Faculty of Mechanical Engineering, Bialystok University of Technology, Wiejska Street 45C, 15351 Bialystok, Poland; [email protected] 4 Institute of Chemistry, University of Silesia, Szkolna 9, 40007 Katowice, Poland; [email protected] (M.K.); [email protected] (J.P.); [email protected] (W.A.P.) * Correspondence: [email protected] Received: 21 August 2019; Accepted: 17 October 2019; Published: 20 October 2019 Abstract: The ErF3-doped oxyfluoride phospho-tellurite glasses in the (40-x) TeO2-10P2O5-45 (BaF2-ZnF2) -5Na2O-xErF3 system (where x = 0.25, 0.50, 0.75, 1.00, and 1.25 mol%) have been prepared by the conventional melt-quenching method. The effect of erbium trifluoride addition on thermal, structure, and spectroscopic properties of oxyfluoride phospho-tellurite precursor glass was studied by differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR), and Raman spectroscopy as well as emission measurements, respectively.
  • Understanding Composition–Structure– Bioactivity Correlations

    Understanding Composition–Structure– Bioactivity Correlations

    Understanding Composition–Structure– Bioactivity Correlations in Bioactive Glasses Yang Yu Academic dissertation for the Degree of Doctor of Philosophy in Physical Chemistry at Stockholm University to be publicly defended on Wednesday 12 December 2018 at 13.00 in De Geersalen, Geovetenskapens hus, Svante Arrhenius väg 14. Abstract Bioactive glasses integrate with bone/tooth tissues by forming a layer of hydroxy-carbonate apatite (HCA), which mimics the composition of bone mineral. In the current thesis, we investigated composition–structure–bioactivity correlations of phosphosilicate and borophosphosilicate (BPS) glasses. Bioactive phosphosilicate glasses extend the compositional space of the ”45S5 Bioglass®”, which has been in clinical use for decades. Recently developed bioactive BPS glasses with SiO2→B2O3 substitutions transform more completely into HCA and their glass dissolution behaviors can be tuned by varying the relative contents of B and Si. It is known that the average silicate network connectivity NSi and the phosphate content (x(P2O5)) affect the apatite formation (in vitro bioactivity) of phosphosilicate glasses, but the details remain poorly explored. Three series of phosphosilicate glasses were designed by independently varying NSi and x(P2O5). After immersion of the glasses in a simulated body fluid (SBF) for 24 hours, different degrees of their apatite formation were quantified by Fourier-transform infrared (FTIR) spectroscopy. The results revealed that a high P content widened the NSi range that generated optimum amounts of apatite and also mitigated the detrimental effects associated with using glass particles with < 50 μm. The amounts of apatite derived from FTIR agreed with those from 31P magic angle spinning (MAS) nuclear magnetic resonance (NMR) spectroscopy.
  • Development, Characterization and Dissolution Behavior of Calcium

    Development, Characterization and Dissolution Behavior of Calcium

    www.nature.com/scientificreports OPEN Development, characterization and dissolution behavior of calcium- aluminoborate glass wasteforms to Received: 11 October 2017 Accepted: 12 March 2018 immobilize rare-earth oxides Published: xx xx xxxx Miae Kim1,2, Claire L. Corkhill2, Neil C. Hyatt2 & Jong Heo1 Calcium-aluminoborate (CAB) glasses were developed to sequester new waste compositions made of several rare-earth oxides generated from the pyrochemical reprocessing of spent nuclear fuel. Several important wasteform properties such as waste loading, processability and chemical durability were evaluated. The maximum waste loading of the CAB compositions was determined to be ~56.8 wt%. Viscosity and the electrical conductivity of the CAB melt at 1300 °C were 7.817 Pa·s and 0.4603 S/cm, respectively, which satisfes the conditions for commercial cold-crucible induction melting (CCIM) process. Addition of rare-earth oxides to CAB glasses resulted in dramatic decreases in the elemental releases of B and Ca in aqueous dissolution experiments. Normalized elemental releases from product consistency standard chemical durability test were <3.62·10−5 g·m−2 for Nd, 0.009 g·m−2 for Al, 0.067 g·m−2 for B and 0.073 g·m−2 for Ca (at 90, after 7 days, for SA/V = 2000m−1); all meet European and US regulation limits. After 20 d of dissolution, a hydrated alteration layer of ~ 200-nm-thick, Ca- depleted and Nd-rich, was formed at the surface of CAB glasses with 20 mol% Nd2O3 whereas boehmite [AlO(OH)] secondary crystalline phases were formed in pure CAB glass that contained no Nd2O3.