Attachment 2 - Indicative List of Nanomaterials.Xls
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UNITE-D STATESJPATBNT Omen .V
.' Patented Sept. 11,1934 1,973,428 UNITE-D STATESJPATBNT omen .v ’ 1,973,428 ; CEMEN'I'ED man ommn'm'raamn Gregory J. Comstock, Edgcwoorl, Pa. assignor'to ~: ' ' ' , Firth-Sterling Steel CompanmMcKeeeport, 2a., , a corporation of Pennsylvania Y . ‘ ' ' No Drawing. Application November 8,‘ 1932, Serial No. 641,762 r .' 3 Claims. (ems-1‘) cold-press, method or the hot-ypress' method. In , . This invention relates generally to hard- ce-f the cold-press method thefmixtureis compacted " mented carbide materials made by a cementing into 'a billet under relatively ‘high'pressure, for -' ‘ or sintering process, and more ‘particularly to example 10,000#/sq.~ in.v and is then preferably such materials containing tungsten carbide, tan:- ,. given'a ‘preliminary sinter at about _1600°‘>-F. ‘of 5 talum carbide, titanium carbide and an auxiliary , It is cooled and :reshaped'and then given a ?nal, I , ‘ I metal, or alloy- such as cobalt, iron or nickel. sinter at a temperature of between ‘2600 and‘ Hard cemented carbide materials containing 32009.- E, . 7' . ~ - _ tungsten carbide and iron, cobalt. or nickel are The material may be made according to the ’ now known and have been described in hot-press method in which the heat ‘and pressure 65 10 Schroeter Patent No. 1,549,615. ‘ ' ‘ ' ' - ‘I ' are applied simultaneously. We’ preter in the ' In my application, Serial No. ‘512,917, filed hot-press, method to use. ‘a temperature‘ of about . November 4, 1931, there isdescribed a hard. 3200° F. and a pressure of about 140o#/sq. in'. cemented carbidematerial containing tungsten and.‘ to carry out the sintering‘for, about ?ve _ carbide, tantalum carbide and cobalt, nickel or minutes‘ at thisftemperature. -
221 Gaas GRADED A
USOO6403874B1 (12) United States Patent (10) Patent No.: US 6,403,874 B1 Shakouri et al. (45) Date of Patent: *Jun. 11, 2002 (54) HIGH-EFFICIENCY HETEROSTRUCTURE OTHER PUBLICATIONS THERMONIC COOLERS N N. W. Ashcroft, et al., Solid State Physics, manual, 1976, pp. (75) Inventors: Ali Shakouri, Santa Cruz; John E. 318-319, 320-321, 362-363. Bowers, Santa Barbara, both of CA D. A. Broido et al., “Effect of Superlattice structure on the (US) th ermoelectriclectric fiIlgure OIf meril:t: , Theline Am erican PhPinySIca 1 Society (Physical Review B.), vol. 51, No. 19, May 15, (73) Assignee: The Regents of the University of 1995, pp. 13797-800. California, Oakland, CA (US) D. A. Broido et al., “Comment of Use of quantum well Superlattices to obtain high figure of merit from nonconven (*) Notice: Subject to any disclaimer, the term of this tional thermoelectric materials”, Appl. Phys. Lett. 63, 3230 patent is extended or adjusted under 35 (1993), Applied Physics Letters, vol. 67, No. 8, Aug. 21, U.S.C. 154(b) by 0 days. 1995, pp. 1170–1171. D. A. Broido et al., “Thermoelectric figure or merit of This patent is Subject to a terminal dis- quantum wire Superlattices”, Applied Physics Letters, Jul. 3, claimer. 1995, vol. 67, No. 1, 100-102. (21) Appl. No.: 09/441,787 (List continued on next page.) (22) Filed: Nov. 17, 1999 Primary Examiner—Bruce F. Bell ASSistant Examiner Thomas H Parsons Related U.S. Application Data (74) Attorney, Agent, or Firm-Gates & Cooper LLP (60) Pisional application No. 60/109,342, filed on Nov. -
Open Cyphersthesis FINAL.Pdf
The Pennsylvania State University The Graduate School College of Engineering RESEARCH ON LOW FREQUENCY COMPOSITE TRANSDUCERS FABRICATED USING A SOL-GEL SPRAY-ON METHOD A Thesis in Engineering Science by Robert L. Cyphers c 2012 Robert L. Cyphers Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Science December 2012 The thesis of Robert L. Cyphers was reviewed and approved∗ by the following: Bernhard R. Tittmann Schell Professor of Engineering Science and Mechanics Thesis Advisor Clifford Lissenden Professor of Engineering Science and Mechanics Mark W. Horn Professor of Engineering Science and Mechanics Judith A. Todd Professor of Engineering Science and Mechanics // P. B. Breneman Department Head Head of the Department of Engineering Science and Mechanics ∗Signatures are on file in the Graduate School. Abstract Ultrasonic nondestructive evaluation is currently used in countless applications to maintain a system's operational integrity. Piezoelectric transducers are the devices commonly used in this field to search for defects. A sol-gel fabrication method utilizing a spray-on deposition method has proven to produce ultrasonic transducers useful in harsh environments. This procedure produces thin film transducers, which adhere directly to a substrate making it favorable in use with irregular surface geometries. These transducers operate at relatively high frequencies due to their minute thickness. The objective of this research is to investigate the ability for low frequency operation into the low kilohertz range. Depositing thicker layers of piezoelectric composites, including bismuth titanate and lead zirconate titanate, led to adhesion problems between the metal substrates and ceramic material. Delamination of the piezoelectric elements was determined to be caused by a large mismatch in thermal expansion coefficients. -
Growthmechanismand Characteristics of Semiconductor Nanowires For
www.symbiosisonline.org Symbiosis www.symbiosisonlinepublishing.com Research Article Nanoscience & Technology: Open Access Open Access Growth Mechanism and Characteristics of Semiconductor Nanowires for Photonic Devices N. B Singh1, S. R Coriell1, Matthew King2, Brian Wagner2, David Kahler2, David Knuteson2, Andre Berghman2 and Sean McLaughlin2 1University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250 2Northrop Grumman Corporation ES, 1212 Winterson Road, Linthicum, MD 21250 Received: March 31, 2014; Accepted: April 27, 2014; Published: April 29, 2014 *Corresponding author: N. B Singh, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250 photodiodes (A Abstract photon counting applications. These arecapable of low-light An overview on the growth mechanism of nanowire, fabrication detectionand havePDs) great are potentialvery capable for the detectors variety ofin applications. finding and and performance of selenide nanowires devices is presented. Growth of nano particles and preliminary results on the formation Binary, ternary and quaternary selenides have relatively low optical of nanowires of lead selenide is reported. Results are presented for the zinc selenide nanowire based devices, performance and combination of properties of selenides makes them very important materialsabsorption for coefficient detector andapplications. have wide Lead transparency selenide (PbSe)range. nanoThis particles and nanowires were grown by the physical vapor transport to device arrays. (PVT) method and zinc selenide (ZnSe) nanowire was grown by more specifically the ability to transition from single NW devices chemical vapor transport (CVT) methods. Observations on the growth Experimental Method of PbSe indicate that oriented attachment of nanocrystal building Materials purification blocks produces nanowires. On silicon (111) substrates binding was observed to be on (001) and (111) faces. -
High Temperature Ultrasonic Transducers: a Review
sensors Review High Temperature Ultrasonic Transducers: A Review Rymantas Kazys * and Vaida Vaskeliene Ultrasound Research Institute, Kaunas University of Technology, Barsausko st. 59, LT-51368 Kaunas, Lithuania; [email protected] * Correspondence: [email protected] Abstract: There are many fields such as online monitoring of manufacturing processes, non-destructive testing in nuclear plants, or corrosion rate monitoring techniques of steel pipes in which measure- ments must be performed at elevated temperatures. For that high temperature ultrasonic transducers are necessary. In the presented paper, a literature review on the main types of such transducers, piezoelectric materials, backings, and the bonding techniques of transducers elements suitable for high temperatures, is presented. In this review, the main focus is on ultrasonic transducers with piezoelectric elements suitable for operation at temperatures higher than of the most commercially available transducers, i.e., 150 ◦C. The main types of the ultrasonic transducers that are discussed are the transducers with thin protectors, which may serve as matching layers, transducers with high temperature delay lines, wedges, and waveguide type transducers. The piezoelectric materi- als suitable for high temperature applications such as aluminum nitride, lithium niobate, gallium orthophosphate, bismuth titanate, oxyborate crystals, lead metaniobate, and other piezoceramics are analyzed. Bonding techniques used for joining of the transducer elements such as joining with glue, soldering, -
Carbon Nanostructures Doped with Transition Metals for Pollutant Gas Adsorption Systems
molecules Review Carbon Nanostructures Doped with Transition Metals for Pollutant Gas Adsorption Systems J. M. Ramirez-de-Arellano 1 , M. Canales 2 and L. F. Magaña 3,* 1 Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Av. Eugenio Garza Sada 2501, Monterrey 64849, Mexico; [email protected] 2 Universidad Autónoma Metropolitana Unidad Azcapotzalco, Av. San Pablo Xalpa No. 180, Colonia Reynosa Tamaulipas, Delegación Azcapotzalco, Ciudad de México 02200, Mexico; [email protected] 3 Instituto de Física, Universidad Nacional Autónoma de Mexico, Apartado Postal 20-364, Ciudad de México 01000, Mexico * Correspondence: fernando@fisica.unam.mx Abstract: The adsorption of molecules usually increases capacity and/or strength with the doping of surfaces with transition metals; furthermore, carbon nanostructures, i.e., graphene, carbon nanotubes, fullerenes, graphdiyne, etc., have a large specific area for gas adsorption. This review focuses on the reports (experimental or theoretical) of systems using these structures decorated with transition metals for mainly pollutant molecules’ adsorption. Furthermore, we aim to present the expanding application of nanomaterials on environmental problems, mainly over the last 10 years. We found a wide range of pollutant molecules investigated for adsorption in carbon nanostructures, including greenhouse gases, anticancer drugs, and chemical warfare agents, among many more. Keywords: carbon nanostructures; doping; adsorption; transition metals; pollutant gas; nanotubes; Citation: Ramirez-de-Arellano, -
Na‐Doped C70 Fullerene/N‐Doped Graphene/Fe‐Based Quantum Dot
Author Manuscript Title: Na-doped C70 fullerenes/N-doped graphene/Fe-based quantum dots nano- composites for sodium-ion batteries with ultra-high coulombic efficiency Authors: Chunlian Wang; Yang Zhang; Wen He; Xudong Zhang; Zhaoyang Wang; Guihua Yang; Manman Ren; Lianzhou Wang This is the author manuscript accepted for publication and has undergone full peer review but has not been through the copyediting, typesetting, pagination and proofrea- ding process, which may lead to differences between this version and the Version of Record. To be cited as: ChemElectroChem 10.1002/celc.201700899 Link to VoR: https://doi.org/10.1002/celc.201700899 ARTICLE 1 Na-doped C70 fullerenes/N-doped graphene/Fe-based quantum dots nanocomposites 2 for sodium-ion batteries with ultra-high coulombic efficiency 3 Chunlian Wang,[a] Yang Zhang,[b] Wen He,*[ad] Xudong Zhang,*[a] Guihua Yang,[c] Zhaoyang Wang,[a] Manman Ren,[ad] 4 Lianzhou Wang[d] 5 [5-8] 6 Abstract: We fabricate Na-doped C70 fullerenes (Na-C70)/N-doped39 better performance. Carbon materials showing potential using 7 graphene (N-GN)/Fe-based nanocomposites (Na-C70/N-GN/FBNCs)40 in other area, such as carbon silicon composites for 8 with the multiple morphologies via an in situ one step method used41 electromagnetic materials[9], poly/multi-walled carbon nanotubes 9 the multifunction sodium lignosulfonate (SLS) as the structural42 with conductive segregated structure[10], graphene quantum dots 10 template and the main raw material. Fe-based nanoparticles can43 decorated oxide as solar cells[11]. Nanocarbon materials are 11 embed in ordered mesoporous hybrid carbon structure of Na-C7044 recognized as the leading electrode material for commercial 12 and N-GN via spontancous chelation reaction of SLS with iron ions45 LIBs anodes because of their high electrical conductivity, low 13 and carbonization under relatively mild hydrothermal treatment. -
Trends in Performance Limits of the HOT Infrared Photodetectors
applied sciences Review Trends in Performance Limits of the HOT Infrared Photodetectors Antoni Rogalski 1, Piotr Martyniuk 1,*, Małgorzata Kopytko 1 and Weida Hu 2 1 Faculty of Advanced Technologies and Chemistry, Institute of Applied Physics, Military University of Technology, 2 Kaliskiego St., 00-908 Warsaw, Poland; [email protected] (A.R.); [email protected] (M.K.) 2 State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai 200083, China; [email protected] * Correspondence: [email protected]; Tel.: +48-26-183-92-15 Abstract: The cryogenic cooling of infrared (IR) photon detectors optimized for the mid- (MWIR, 3–5 µm) and long wavelength (LWIR, 8–14 µm) range is required to reach high performance. This is a major obstacle for more extensive use of IR technology. Focal plane arrays (FPAs) based on thermal detectors are presently used in staring thermal imagers operating at room temperature. However, their performance is modest; thermal detectors exhibit slow response, and the multispectral detection is difficult to reach. Initial efforts to develop high operating temperature (HOT) photodetectors were focused on HgCdTe photoconductors and photoelectromagnetic detectors. The technological efforts have been lately directed on advanced heterojunction photovoltaic HgCdTe detectors. This paper presents the several approaches to increase the photon-detectors room-temperature performance. Various kinds of materials are considered: HgCdTe, type-II AIIIBV superlattices, two-dimensional materials and colloidal quantum dots. Keywords: HOT IR detectors; HgCdTe; P-i-N; BLIP condition; 2D material photodetectors; colloidal quantum dot photodetectors Citation: Rogalski, A.; Martyniuk, P.; Kopytko, M.; Hu, W. -
United States Patent (19) (11) 3,899,444 Stephens (45) Aug
United States Patent (19) (11) 3,899,444 Stephens (45) Aug. 12, 1975 54 EXHAUST GAS CATALYST SUPPORT 75) Inventor: Ruth E. Stephens, Royal Oak, Mich. Primary Examiner-Carl F. Dees Attorney, Agent, or Firm-Donald L. Johnson; Robert 73) Assignee: Ethyl Corporation, Richmond, Va. A. Linn; Joseph D. Odenweller 22 Filed: Dec. 22, 1972 (21) Appl. No.: 317,831 57 ... ' ABSTRACT A thermally stable and attrition resistant catalyst sup Related U.S. Application Data port consisting essentially of an alumina coating on an 63 Continuation-in-part of Ser. No. 224,240, Feb. 7, inert substrate. The alumina coating has a rare earth 1972. metal oxide substantially uniformly distributed throughout. Catalyst compositions utilizing this sup 52 U.S. Cl.............. 252/455 R; 252/462; 252/463; port, processes for preparing both support and cata 252/471; 423/213.5 lyst, and a method of treating internal combustion en (51) Int. Cl..... B01j 11/40; B01j 1 1/06; B01j 1 1/32 gine exhaust gases and preventing crystallization of 58) Field of Search........ 252/462, 463, 455 R, 457; alumina are disclosed. Catalysts consisting essentially 423/213.5 of an alumina matrix containing rare earth metal oxide and a catalytic metal oxide are also disclosed. The 56 References Cited atom ratio of rare earth metal to aluminum in the sup UNITED STATES PATENTS port is 1:5.7-25. The atom ratio of catalytic metal to 3,284,370 1 1/1966 Clifford et al...................... 252/462 rare earth metal to aluminum in the catalysts is 3,554,929 1/1971 Aarons............................... -
Catalytic Performance of Lanthanum Promoted Ni/Zro2 for Carbon Dioxide Reforming of Methane
processes Article Catalytic Performance of Lanthanum Promoted Ni/ZrO2 for Carbon Dioxide Reforming of Methane Mahmud S. Lanre 1, Ahmed S. Al-Fatesh 1,* , Anis H. Fakeeha 1,2 , Samsudeen O. Kasim 1 , Ahmed A. Ibrahim 1 , Abdulrahman S. Al-Awadi 1,2, Attiyah A. Al-Zahrani 1 and Ahmed E. Abasaeed 1,* 1 Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia; mahmudsofi[email protected] (M.S.L.); [email protected] (A.H.F.); [email protected] (S.O.K.); [email protected] (A.A.I.); [email protected] (A.S.A.-A.); [email protected] (A.A.A.-Z.) 2 King Abdullah City for Atomic and Renewable Energy, (K.A. CARE) Energy Research and Innovation Center at Riyadh, Riyadh 11421, Saudi Arabia * Correspondence: [email protected] (A.S.A.-F.); [email protected] (A.E.A.); Tel.: +966-11-467-6859 (A.S.A.-F.); +966-11-467-6856 (A.E.A.) Received: 14 October 2020; Accepted: 16 November 2020; Published: 20 November 2020 Abstract: Nickel catalysts supported on zirconium oxide and modified by various amounts of lanthanum with 10, 15, and 20 wt.% were synthesized for CO2 reforming of methane. The effect of La2O3 as a promoter on the stability of the catalyst, the amount of carbon formed, and the ratio of H2 to CO were investigated. In this study, we observed that promoting the catalyst with La2O3 enhanced catalyst activities. The conversions of the feed, i.e., methane and carbon dioxide, were in the order 10La2O3 > 15La2O3 > 20La2O3 > 0La2O3, with the highest conversions being about 60% and 70% for both CH4 and CO2 respectively. -
Preparation of Bismuth Telluride Specimens for TEM
Preparation of Bismuth Telluride Specimens for TEM Mark Homer1, Douglas L. Medlin2 1,2. Sandia National Laboratories, Energy Nanomaterials Dept., Livermore CA, USA Bismuth telluride (Bi2Te3) and its alloys are an important class of thermoelectric material. How well a thermoelectric material works is dependent on a variety of factors such as electrical and thermal conductivity and the Seeback coefficient. Because the electrical and thermal conductivity can be affected by defects in the material, there is much interest in the basic understanding the microstructures of these materials [1]. There are challenges in preparation of TEM specimens from telluride-based materials due to their sensitivity to ion-milling artifacts. For instance, nanoscale defect arrangements have been shown to form in lead telluride (PbTe) specimens prepared under aggressive ion milling conditions if cooling and power density is not suitably controlled [2]. In this presentation we discuss methods and conditions for preparing TEM specimens of Bi2Te3 specimens considering both ion-milling and electropolishing techniques. In all cases TEM specimens were mechanically pre-thinned using conventional mechanical dimpling and polishing techniques prior to final thinning to electron transparency. The ion-milled specimens were prepared with Ar+ ion sputtering using a Fischione Model 1010 ion mill with LN cooling. The electropolished specimens were prepared using a Fischione Model 120 electropolisher and an electrolyte consisting of 53% water, 38% glycerol, 5% sodium hydroxide, and 4% tartaric acid. The electrolyte was set in an ice bath and cooled to 2° C, and electropolished at 25V and 35mA. Figures 1 and 2 show dark-field TEM micrographs comparing ion milled and electropolished Bi2Te3 specimens. -
Gasb Paper R2 ACS Nano
High-Mobility GaSb Nanostructures Cointegrated with InAs on Si Borg, Mattias; Schmid, Heinz; Gooth, Johannes; Rossell, Marta D.; Cutaia, Davide; Knoedler, Moritz; Bologna, Nicolas; Wirths, Stephan; Moselund, Kirsten E.; Riel, Heike Published in: ACS Nano DOI: 10.1021/acsnano.6b04541 2017 Document Version: Peer reviewed version (aka post-print) Link to publication Citation for published version (APA): Borg, M., Schmid, H., Gooth, J., Rossell, M. D., Cutaia, D., Knoedler, M., Bologna, N., Wirths, S., Moselund, K. E., & Riel, H. (2017). High-Mobility GaSb Nanostructures Cointegrated with InAs on Si. ACS Nano, 11(3), 2554- 2560. https://doi.org/10.1021/acsnano.6b04541 Total number of authors: 10 Creative Commons License: Unspecified General rights Unless other specific re-use rights are stated the following general rights apply: Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal Read more about Creative commons licenses: https://creativecommons.org/licenses/ Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.