Bureau of Industry and Security, Commerce § 772.1

Total Page:16

File Type:pdf, Size:1020Kb

Bureau of Industry and Security, Commerce § 772.1 Bureau of Industry and Security, Commerce § 772.1 of Columbia, Puerto Rico, and all terri- NOTE: If an ECCN specifies one or more of tories, dependencies, and possessions of the six elements of ‘‘use’’ in the heading or the United States, including foreign control text, only those elements specified trade zones established pursuant to 19 are classified under that ECCN. U.S.C. 81A–81U, and also including the User-accessible programmability. (Cat 4, outer continental shelf, as defined in 5, and 6)—The facility allowing a user section 2(a) of the Outer Continental to insert, modify, or replace ‘‘pro- Shelf Lands Act (43 U.S.C. 1331(a)). grams’’ by means other than: United States airline. Any citizen of (a) A physical change in wiring or the United States who is authorized by interconnections; or the U.S. Government to engage in busi- (b) The setting of function controls ness as an airline. For purposes of this including entry of parameters. definition, a U.S. citizen is: Utilization facility. (a) As defined by 10 (a) An individual who is a citizen of CFR 110.2 of the Nuclear Regulatory the United States or one of its posses- Commission Regulations, utilization sions; or facility means a nuclear reactor, other (b) A partnership of which each mem- than one that is a production facility, ber is such an individual; or any of the following major components (c) A corporation or association cre- of a nuclear reactor: Pressure vessels ated or organized under the laws of the designed to contain the core of a nu- United States, or of any State, Terri- clear reactor, other than one that is a tory, or possession of the United production facility, and the following States, of which the president and two- major components of a nuclear reactor: thirds of the board of directors and (1) Primary coolant pumps; other managing officers thereof are (2) Fuel charging or discharging ma- such individuals and in which at least chines; and 75 percent of the voting interest is (3) Control rods. owned or controlled by persons who are (b) Utilization facility does not in- citizens of the United States or of one clude the steam turbine generator por- of its possessions. tion of a nuclear power plant. ‘‘Unmanned aerial vehicle’’ (‘‘UAV’’). Vacuum Atomization. (Cat 1)—A proc- (Cat 9) Any ‘‘aircraft’’ capable of initi- ess to reduce a molten stream of metal ating flight and sustaining controlled to droplets of a diameter of 500 mi- flight and navigation without any crometer or less by the rapid evolution human presence on board. of a dissolved gas upon exposure to a NOTE TO DEFINITION OF ‘‘UNMANNED AERIAL vacuum. VEHICLE’’ (‘‘UAV’’): For the purposes of § 744.3 Variable geometry airfoils. (Cat 7)—Use of the EAR, unmanned air vehicles, which trailing edge flaps or tabs, or leading are the same as ‘‘unmanned aerial vehicles,’’ edge slats or pivoted nose droop, the include, but are not limited to, cruise mis- siles, target drones and reconnaissance position of which can be controlled in drones. flight. Vector Rate. (Cat 4)—See: ‘‘Two di- Usable in’’, ‘‘usable for’’, ‘‘usable as’’ or mensional Vector Rate’’; ‘‘Three di- ‘‘Capable of’’. (MTCR context)—Equip- mensional Vector Rate’’. ment, parts, components, materials or You. Any person, including a natural ‘‘software’’ which are suitable for a person, including a citizen of the particular purpose. There is no need for United States or any foreign country; the equipment, parts, components, ma- any firm; any government, government terials or ‘‘software’’ to have been con- agency, government department, or figured, modified or specified for the government commission; any labor particular purpose. For example, any union; any fraternal or social organiza- military specification memory circuit tion; and any other association or or- would be ‘‘capable of’’ operation in a ganization whether or not organized guidance system. for profit. Use. (All categories and General Technology Note)—Operation, installa- [61 FR 12925, Mar. 25, 1996] tion (including on-site installation), EDITORIAL NOTE: For FEDERAL REGISTER ci- maintenance (checking), repair, over- tations affecting § 772.1, see the List of CFR haul and refurbishing. Sections Affected, which appears in the 759 VerDate Sep<11>2014 13:26 Feb 14, 2018 Jkt 244052 PO 00000 Frm 00769 Fmt 8010 Sfmt 8010 Q:\15\15V2.TXT 31 kpayne on DSK54DXVN1OFR with $$_JOB Pt. 774 15 CFR Ch. VII (1–1–18 Edition) Finding Aids section of the printed volume (b) ECCN cross-references for items sub- and at www.fdsys.gov. ject to exclusive jurisdiction of another agency. (1) Prior to October 15, 2013, the PART 774—THE COMMERCE CCL contained certain ECCNs that CONTROL LIST were only included as cross references to items subject to the export control Sec. regulations administered by the Nu- 774.1 Introduction. clear Regulatory Commission. 774.2 [Reserved] (2) ECCNs formerly listed on the CCL SUPPLEMENT NO. 1 TO PART 774—THE COM- that, as of October 15, 2013 were subject MERCE CONTROL LIST to the export licensing authority of the SUPPLEMENT NO. 2 TO PART 774—GENERAL Nuclear Regulatory Commission at 10 TECHNOLOGY AND SOFTWARE NOTES CFR part 110 are: 0A001, 0B001, 0B002, SUPPLEMENT NO. 3 TO PART 774—STATEMENT 0B003, 0B004, 0B005, 0B006, 0C001, 0C002, OF UNDERSTANDING 0C004, 0C005, 0C006, 0C201 and 1C012. SUPPLEMENT NO. 4 TO PART 774—COMMERCE CONTROL LIST ORDER OF REVIEW (3) The following multilateral export SUPPLEMENT NO. 5 TO PART 774—ITEMS CLAS- control regime reference is provided, as SIFIED UNDER ECCNS 0A521, 0B521, 0C521, an additional point of historical ref- 0D521 AND 0E521 erence: 0C201—INFCIRC 254 Part 1, SUPPLEMENT NO. 6 TO PART 774—SENSITIVE 5.3.1(b). LIST SUPPLEMENT NO. 7 TO PART 774—VERY SEN- NOTE TO PARAGRAPH (b): ECCNs 0D001 and SITIVE LIST 0E001 are ‘‘subject to the ITAR’’ (see 22 CFR parts 120 through 130). These ECCNs are re- AUTHORITY: 50 U.S.C. 4601 et seq.; 50 U.S.C. tained on the CCL as cross references to the 1701 et seq.; 10 U.S.C. 7420; 10 U.S.C. 7430(e); 22 ITAR, although the former cross references U.S.C. 287c, 22 U.S.C. 3201 et seq.; 22 U.S.C. to export licensing authority of the Nuclear 6004; 42 U.S.C. 2139a; 15 U.S.C. 1824a; 50 U.S.C. Regulatory Commission (see 10 CFR part 110) 4305; 22 U.S.C. 7201 et seq.; 22 U.S.C. 7210; E.O. for ECCN 0D001, and to the Department of 13026, 61 FR 58767, 3 CFR, 1996 Comp., p. 228; Energy (see 10 CFR part 810) for 0E001 were E.O. 13222, 66 FR 44025, 3 CFR, 2001 Comp., p. removed from the Control(s) paragraph in 783; Notice of August 15, 2017, 82 FR 39005 the License Requirements section of these (August 16, 2017). two ECCNs and added as a more general ju- SOURCE: 61 FR 12937, Mar. 25, 1996, unless risdictional cross reference in a heading note otherwise noted. added to these two ECCNs as of June 5, 2014. (c) Where to find the CCL? The CCL is § 774.1 Introduction. contained in supplement no. 1 to this (a) Scope of the control list. In this part, and supplement no. 2 to this part part, references to the EAR are ref- contains the General Technology and erences to 15 CFR chapter VII, sub- Software Notes relevant to entries con- chapter C. The Bureau of Industry and tained in the CCL. Security (BIS) maintains the Com- (d) Conventions related to the use of merce Control List (CCL) that includes quotation marks on the CCL. The use of ‘‘items’’—i.e., ‘‘commodities,’’ ‘‘soft- double quotation marks on the CCL is ware,’’ and ‘‘technology’’—subject to intended to be an aid to alert you to the authority of BIS. The CCL does not terms used on the CCL that are defined include items exclusively controlled in part 772 (Definitions of Terms), or for export by another department or for purposes of ECCNs, where a defini- agency of the U.S. Government, though tion is provided in the ‘‘related defini- in instances where other agencies ad- tions’’ paragraph in the License Re- minister controls over related items, quirements section of ECCNs or some- entries in the CCL may contain a ref- times in Notes and Technical Notes for erence to such controls. In addition, particular ECCNs and that definition is those items ‘‘subject to the EAR’’ but specific to that particular ECCN. In not identified on the CCL are identified this sense the quotes are helpful both by the designator ‘‘EAR99.’’ See in the use of single and double quotes, § 734.2(a) of the EAR for items that are but a good compliance practice is to fa- ‘‘subject to the EAR.’’ EAR Part 738 miliarize yourself with the defined contains an explanation of the organi- terms in part 772, and when reviewing a zation of the CCL and its relationship control parameter on the CCL that to the Country Chart. uses a term that is not in quotes to be 760 VerDate Sep<11>2014 13:26 Feb 14, 2018 Jkt 244052 PO 00000 Frm 00770 Fmt 8010 Sfmt 8010 Q:\15\15V2.TXT 31 kpayne on DSK54DXVN1OFR with $$_JOB Bureau of Industry and Security, Commerce Pt. 774, Supp. No. 1 aware it may be defined in part 772. It § 774.2 [Reserved] is also a useful compliance practice to review the ‘‘Related Definitions’’ para- SUPPLEMENT NO. 1 TO PART 774—THE graph and Notes and Technical Notes COMMERCE CONTROL LIST to determine if the term is defined for CATEGORY 0—NUCLEAR MATERIALS, FACILI- purposes of a particular ECCN.
Recommended publications
  • Processing, Microstructure, and Mechanical Properties of Zirconium Diboride-Molybdenum Disilicide Ceramics and Dual Composite Architectures
    Scholars' Mine Doctoral Dissertations Student Theses and Dissertations Spring 2017 Processing, microstructure, and mechanical properties of zirconium diboride-molybdenum disilicide ceramics and dual composite architectures Ryan Joseph Grohsmeyer Follow this and additional works at: https://scholarsmine.mst.edu/doctoral_dissertations Part of the Energy Systems Commons, and the Materials Science and Engineering Commons Department: Materials Science and Engineering Recommended Citation Grohsmeyer, Ryan Joseph, "Processing, microstructure, and mechanical properties of zirconium diboride- molybdenum disilicide ceramics and dual composite architectures" (2017). Doctoral Dissertations. 2561. https://scholarsmine.mst.edu/doctoral_dissertations/2561 This thesis is brought to you by Scholars' Mine, a service of the Missouri S&T Library and Learning Resources. This work is protected by U. S. Copyright Law. Unauthorized use including reproduction for redistribution requires the permission of the copyright holder. For more information, please contact [email protected]. PROCESSING, MICROSTRUCTURE, AND MECHANICAL PROPERTIES OF ZIRCONIUM DIBORIDE-MOLYBDENUM DISILICIDE CERAMICS AND DUAL COMPOSITE ARCHITECTURES by RYAN JOSEPH GROHSMEYER A DISSERTATION Presented to the Faculty of the Graduate School of the MISSOURI UNIVERSITY OF SCIENCE AND TECHNOLOGY In Partial Fulfillment of the Requirements for the Degree DOCTOR OF PHILOSOPHY in MATERIALS SCIENCE AND ENGINEERING 2017 Submitted to: Gregory Hilmas, Advisor William Fahrenholtz Jeffrey Smith David Van Aken Lokeswarappa Dharani iii PUBLICATION DISSERTATION OPTION This dissertation consists of the following five articles that will be submitted for publication as follows and have been formatted in the style of the journal Ceramics International. The manuscripts entitled, “ZrB2-MoSi2 Ceramics with Varying MoSi2 Content: Part 1. Processing and Microstructure with Varying ZrB2 Particle Size:” (Paper I, Pages 50–80), and the manuscript entitled “ZrB2-MoSi2 Ceramics with Varying MoSi2 Content: Part 2.
    [Show full text]
  • Interface Engineering of Graphene Nanosheet Reinforced Zrb2
    Interface engineering of graphene nanosheet reinforced ZrB2 composites by tuning surface contacts Yanhui Zhang∗„y and Stefano Sanvito∗„y E-mail: [email protected]; [email protected] Abstract The mechanical properties of heterophase interfaces are critically important for the behaviour of graphene-reinforced composites. In this work, the structure, adhe- sion, cleavage and sliding of heterophase interfaces, formed between a ZrB2 matrix and graphene nanosheets, are systematically investigated by density functional theory, and compared to available experimental data. We demonstrate that the surface chemistry of the ZrB2 matrix material largely shapes the interface structures (of either Zr-C-Zr or B-C-B type) and the nature of the interfacial interaction. The Zr-C-Zr interfaces present strong chemical bonding and their response to mechanical stress is significantly influenced by graphene corrugation. In contrast B-C-B interfaces, interacting through the relatively weak π-π stacking, show attributes similar to 2D materials heterostruc- tures. Our theoretical results provide insights into the interface bonding mechanisms in arXiv:1904.09008v1 [cond-mat.mtrl-sci] 18 Apr 2019 graphene/ceramic composites, and emphasize the prospect for their design via interface engineering enabled by surface contacts. 1 Keywords ZrB2, graphene, interface, mechanical properties, ultra-high temperature ceramics, density functional theory, ceramic matrix composites 1 Introduction Within the last ten years, the use of graphene as nanofiller in ceramic matrix composites (CMCs),
    [Show full text]
  • Impact Testing of Zirconium Diboride Mark David Flores University of Texas at El Paso, [email protected]
    University of Texas at El Paso DigitalCommons@UTEP Open Access Theses & Dissertations 2012-01-01 Impact Testing of Zirconium Diboride Mark David Flores University of Texas at El Paso, [email protected] Follow this and additional works at: https://digitalcommons.utep.edu/open_etd Part of the Mechanical Engineering Commons Recommended Citation Flores, Mark David, "Impact Testing of Zirconium Diboride" (2012). Open Access Theses & Dissertations. 2283. https://digitalcommons.utep.edu/open_etd/2283 This is brought to you for free and open access by DigitalCommons@UTEP. It has been accepted for inclusion in Open Access Theses & Dissertations by an authorized administrator of DigitalCommons@UTEP. For more information, please contact [email protected]. IMPACT TESTING OF ZIRCONIUM DIBORIDE MARK D. FLORES Department of Mechanical Engineering APPROVED: Jack F. Chessa Ph.D., Chair Chintalapalle V. Ramana, Ph.D. Cesar Carrasco, Ph.D. Benjamin C. Flores, Ph.D. Interim Dean of the Graduate School Copyright © by Mark D. Flores 2012 IMPACT TESTING OF ZIRCONIUM DIBORIDE by MARK D. FLORES THESIS Presented to the Faculty of the Graduate School of The University of Texas at El Paso in Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE Department of Mechanical Engineering THE UNIVERSITY OF TEXAS AT EL PASO May 2012 Abstract Materials research is one of the driving forces that stimulate new ideas and concepts in a wide range of engineering applications. Material research allows engineers and scientists the ability to find new ways to use high performance materials to advance technology in the aerospace industry. In this study, Zirconium Diboride (ZrB2) will be the subject of impact testing at various speeds.
    [Show full text]
  • Improved Performances of Sibcn Powders Modified Phenolic Resins-Carbon Fiber Composites
    processes Article Improved Performances of SiBCN Powders Modified Phenolic Resins-Carbon Fiber Composites Wenjie Yuan 1,2, Yang Wang 1,2, Zhenhua Luo 1,2, Fenghua Chen 1,2,*, Hao Li 1,2,* and Tong Zhao 1,2,* 1 Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; [email protected] (W.Y.); [email protected] (Y.W.); [email protected] (Z.L.) 2 School of Chemical Science, University of Chinese Academy of Sciences, Beijing 100049, China * Correspondence: [email protected] (F.C.); [email protected] (H.L.); [email protected] (T.Z.) Abstract: The effect of SiBCN powder on properties of phenolic resins and composites was analyzed. Compared with phenolic resins, the thermal stability of SiBCN powder modified phenolic resins (the SiBCN phenolic resins) by characterization of thermogravimetric analysis (TGA) improved clearly. It was found by X-ray photoelectron spectroscopy (XPS) that reactions between SiBCN powder and the pyrolysis product of phenolic resins were the main factor of the increased residual weight. TGA and static ablation of a muffle furnace were used to illustrate the roles of SiBCN powder on increasing oxidation resistance of SiBCN powder-modified phenolic resin–carbon fiber composites (SiBCN–phenolic/C composites), and the oxidative product was analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). For SiBCN–phenolic/C composites, the occurrence of oxidation reaction and the formation of protective crust contributed to improving oxidative resistance. The result of the oxygen-acetylene test showed that the linear ablation rate (LAR) and mass ablation rate (MAR) of phenolic resin–carbon fiber Citation: Yuan, W.; Wang, Y.; Luo, Z.; composites reduced from 0.052 ± 0.005 mm/s to 0.038 ± 0.004 mm/s and from 0.050 ± 0.004 g/s to Chen, F.; Li, H.; Zhao, T.
    [Show full text]
  • Combined Dilatometry and Mass Spectrometry of Sintering And
    COMBINED DILATOMETRY AND MASS SPECTROMETRY OF SINTERING AND EVOLVED GASES OF BARIUM TITANATE AND ZIRCONIUM DIBORIDE WITH SINTERING ADDITIVES _______________________________________ A Thesis presented to the Faculty of the Graduate School University of Missouri _______________________________________ In Partial Fulfillment Of the Requirements for the Degree Master of Science _______________________________________ by MURRAY MOSS Dr. Stephen J. Lombardo, Thesis Supervisor DECEMBER 2012 The undersigned, Appointed by the Dean of the Graduate School, have examined the thesis entitled COMBINED DILATOMETRY AND MASS SPECTROMETRY OF SINTERING AND EVOLVED GASES OF BARIUM TITANATE AND ZIRCONIUM DIBORIDE WITH SINTERING ADDITIVES Presented by Murray Moss A candidate for the degree of Master of Science And hereby certify that in their opinion it is worth of acceptance. Dr. Stephen J. Lombardo _____________________________________________ Dr. David Retzloff _____________________________________________ Dr. Alan Whittington _____________________________________________ ACKNOWLEDGEMENTS I would like to first thank Dr. Stephen J. Lombardo for giving me the opportunity to work in his lab and for all the time he has spent with me on this project. Dr. Lombardo has been all that a teacher and mentor should be: an invaluable source of knowledge, one which motivates and challenges you to grow, all the while showing enormous patience. I really appreciate all you have done for me and wish you success in the future. Secondly, I would like to thank the GAANN (Graduate Assistantship in Areas of National Need) Fellowship for financial support for both myself and the lab, and for the opportunity to meet other professionals by attending conferences. I would also like to thank my Thesis Committee members Dr. Retzloff and Dr.
    [Show full text]
  • University of Birmingham Synthesis of Ultra-Refractory Transition Metal
    University of Birmingham Synthesis of ultra-refractory transition metal diboride compounds Fahrenholtz, William G.; Binner, Jon; Zou, Ji DOI: 10.1557/jmr.2016.210 Document Version Peer reviewed version Citation for published version (Harvard): Fahrenholtz, WG, Binner, J & Zou, J 2016, 'Synthesis of ultra-refractory transition metal diboride compounds', Journal of Materials Research, vol. 31, no. 18, pp. 2757-2772. https://doi.org/10.1557/jmr.2016.210 Link to publication on Research at Birmingham portal Publisher Rights Statement: Checked for eligibility: 04/10/2016. COPYRIGHT: © Materials Research Society 2016 Fahrenholtz, W.G., Binner, J. and Zou, J. (2016) ‘Synthesis of ultra-refractory transition metal diboride compounds’, Journal of Materials Research, 31(18), pp. 2757–2772. doi: 10.1557/jmr.2016.210. https://www.cambridge.org/core/journals/journal-of-materials-research/article/synthesis-of-ultra-refractory-transition-metal-diboride- compounds/439AC30524D1F1E2970F306B038DD857 General rights Unless a licence is specified above, all rights (including copyright and moral rights) in this document are retained by the authors and/or the copyright holders. The express permission of the copyright holder must be obtained for any use of this material other than for purposes permitted by law. •Users may freely distribute the URL that is used to identify this publication. •Users may download and/or print one copy of the publication from the University of Birmingham research portal for the purpose of private study or non-commercial research. •User may use extracts from the document in line with the concept of ‘fair dealing’ under the Copyright, Designs and Patents Act 1988 (?) •Users may not further distribute the material nor use it for the purposes of commercial gain.
    [Show full text]
  • Sintering of Zirconium Diboride-Silicon Carbide (Zrb2-SIC
    UNIVERSITÉ DE LIMOGES UNIVERSITI MALAYSIA SARAWAK ÉCOLE DOCTORALE DOCTORAL PROGRAM Science et Ingénierie en Matériaux, Advanced Material Mécanique, Energétique et Aéronautique FACULTY OF ENGINEERING FACULTÉ DES SCIENCES ET TECHNIQUES Department of Mechanical and Laboratoire Sciences des Procédés Céramiques et Manufacturing Engineering Traitements de Surfaces (UMR CNRS – 7315) THÈSE DOCTEUR DE L’UNIVERSITÉ DE LIMOGES Spécialité: Matériaux Céramiques et Traitements de Surface et DOCTOR OF PHILOSOPHY UNIVERSITI MALAYSIA SARAWAK Speciality: Advanced Material Présentée et soutenue par Dayang Salyani Binti ABANG MAHMOD Octobre, 2017 Sintering of Zirconium Diboride-Silicon Carbide (ZrB2-SiC) and Titanium Diboride-Silicon Carbide (TiB2-SiC) Ceramic Composites and Laser Surface Treatment: Potential Application in Low Temperature Protonic Ceramic Fuel Cells (LTPCFCs) JURY: Président Andrew Ragai Henry Rigit Professor Ir. Dr., Universiti Malaysia Sarawak Kota Samarahan, Sarawak, Malaysia. Rapporteurs Laurence Latu-Romain Associate Professor, Université de Grenoble Alpes, France. Ramesh Singh A/L Kuldip Singh Professor Ir. Dr., University of Malaya, Kuala Lumpur, Malaysia. Pang Suh Cem Professor Dr., Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia. Examinateurs Jean-Claude LABBE Professor Emeritus, Université de Limoges, France. Nicolas GLANDUT Associate Professor, Université de Limoges, France. Amir Azam KHAN Professor Dr., Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia. ii | P a g e To the Parents Who Nurtured Me To Brothers and Sister Who Never Doubt on Me To the Teachers Who Inspired, Engaged, Passionate and Amazing Human Beings To All Who Continue to Fight And To the Readers iii | P a g e “Never give up on anybody, Miracles do happen” “It’s supposed to be hard. If it wasn’t hard, everyone would do it.
    [Show full text]
  • Federal Register/Vol. 82, No. 129/Friday, July 7, 2017/Rules And
    31442 Federal Register / Vol. 82, No. 129 / Friday, July 7, 2017 / Rules and Regulations Paragraph 6002 Class E Airspace DEPARTMENT OF COMMERCE a contribution to delivery systems (other Designated as Surface Areas. than manned aircraft) for such weapons. * * * * * Bureau of Industry and Security In 1993, the MTCR’s original focus on missiles for nuclear weapons delivery AWP CA E2 Arcata, CA [Modified] 15 CFR Parts 742, 744, 772, and 774 was expanded to include the Arcata Airport, CA proliferation of missiles for the delivery ° ′ ″ ° ′ ″ (Lat. 40 58 40 N., long. 124 06 31 W.) [Docket No. 170202139–7139–01] of all types of weapons of mass That airspace within a 4.1-mile radius of RIN 0694–AH33 destruction (WMD), i.e., nuclear, Arcata Airport. chemical and biological weapons. Such Paragraph 6004 Class E Airspace Revisions to the Export Administration proliferation has been identified as a Designated as an Extension to a Class D or Regulations Based on the 2016 Missile threat to international peace and Class E Surface Area. Technology Control Regime Plenary security. One way to address this threat * * * * * Agreements is to maintain vigilance over the transfer of missile equipment, material, and AGENCY: AWP CA E4 Arcata, CA [New] Bureau of Industry and related technologies usable for systems Arcata Airport, CA Security, Commerce. capable of delivering WMD. MTCR (Lat. 40°58′40″ N., long. 124°06′31″ W.) ACTION: Final rule. members voluntarily pledge to adopt the That airspace extending upward from the Regime’s export Guidelines and to SUMMARY: surface within 2.9 miles each side of the 153° The Bureau of Industry and restrict the export of items contained in bearing from Arcata Airport extending from Security (BIS) is amending the Export the Regime’s Annex.
    [Show full text]
  • Assessment of the State of the Art of Ultra High Temperature Ceramics
    Assessment of the State of the Art of Ultra High Temperature Ceramics Sylvia Johnson, Matt Gasch, NASA Ames Research Center, Moffett Field CA 94035 Mairead Stackpoole, ELORET Corp, Moffett Field CA 94035 1.0 Introduction Ultra High Temperature Ceramics (UHTCs) are a family of materials that includes the borides, carbides and nitrides of hafnium-, zirconium- and titanium-based systems. UHTCs are famous for possessing some of the highest melting points of known materials. In addition, they are very hard, have good wear resistance, mechanical strength, and relatively high thermal conductivities (compared to other ceramic materials). Because of these attributes, UHTCs are ideal for thermal protection systems, especially those that require chemical and structural stability at extremely high operating temperatures. UHTCs have the potential to revolutionize the aerospace industry by enabling the development of sharp hypersonic vehicles or atmospheric entry probes capable of the most extreme entry conditions. 2.0 Background UHTCs originated in the early 1960s. Some of the earliest and most thorough work to date was performed then by the company ManLabs, under a research program funded by the Air Force Materials Laboratory (AFML) 1-2. Work on UHTCs was initiated to meet the need for high temperature materials that would allow the development of maneuverable hypersonic flight vehicles. Since then, intermittent research has made some progress, but several significant challenges remain in the use of UHTCs, and these materials have yet to be widely implemented. Strong covalent bonding is responsible for the high melting points, moduli, and hardness of the UHTC family of materials3-4. High negative free energies of formation also give UHTCs excellent chemical and thermal stability under many conditions.
    [Show full text]
  • Ultra High Temperature Ceramics: E-Mail: [email protected] Densification, Properties and Thermal Stability
    High Temperature Materials J.F. Justin, A. Jankowiak (Onera) Ultra High Temperature Ceramics: E-mail: [email protected] Densification, Properties and Thermal Stability ypersonic flights, re-entry vehicles, and propulsion applications all require Hnew materials that can perform in oxidizing or corrosive atmospheres at temperatures in excess of 2000°C and sometimes over the course of a long working life. Ultra High Temperature Ceramics (UHTCs) are good candidates to fulfill these requirements. Within this family, the ZrB2 and HfB2 based composites are the most attractive. The oxidation resistance of diboride-based compounds is better than that of SiC-based ceramics thanks to the formation of multi-oxide scales composed of a refractory oxide (skeleton) and a glass component. Onera is actively involved in several programs to develop such materials for both hypersonic civilian flights and for propulsion systems. In this paper, we present the ZrB2-SiC, ZrB2-SiC-TaSi2 and HfB2-SiC-TaSi2 composites developed in the Onera laboratories for leading edges or air intakes of future hypersonic civilian aircrafts flying up to Mach 6 (T~1100°C-1500°C) with comparisons with the state of the art. Then we discuss new perspectives for higher temperature applications (T>2000°C). Introduction cycling lifetimes are modest. The development of structural materials for use in oxidizing and rapid heating environments at temperatures Ultra High Temperature Ceramics (UHTCs) are good choices for several above 1600°C is therefore of great importance for engineering. extreme applications: thermal protection materials on hypersonic aerospace vehicles or re-usable atmospheric re-entry vehicles, Density Melting Material Crystal structure specific components for propulsion, furnace elements, refractory (g/cm3) température (°C) crucibles, etc.
    [Show full text]
  • Thermal Properties of Zirconium Diboride - Transition Metal Boride Solid Solutions
    Scholars' Mine Masters Theses Student Theses and Dissertations Spring 2014 Thermal properties of zirconium diboride - transition metal boride solid solutions Devon Lee McClane Follow this and additional works at: https://scholarsmine.mst.edu/masters_theses Part of the Materials Science and Engineering Commons Department: Recommended Citation McClane, Devon Lee, "Thermal properties of zirconium diboride - transition metal boride solid solutions" (2014). Masters Theses. 7265. https://scholarsmine.mst.edu/masters_theses/7265 This thesis is brought to you by Scholars' Mine, a service of the Missouri S&T Library and Learning Resources. This work is protected by U. S. Copyright Law. Unauthorized use including reproduction for redistribution requires the permission of the copyright holder. For more information, please contact [email protected]. 0 1 THERMAL PROPERTIES OF ZIRCONIUM DIBORIDE – TRANSITION METAL BORIDE SOLID SOLUTIONS by DEVON LEE MCCLANE A THESIS Presented to the Faculty of the Graduate School of the MISSOURI UNIVERSITY OF SCIENCE AND TECHNOLOGY In Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE IN MATERIALS SCIENCE AND ENGINERING 2014 Approved by William G. Fahrenholtz, Advisor Greg E. Hilmas, Co-Advisor Wayne Huebner 2 iii PUBLICATION THESIS OPTION The thesis has been prepared in the style utilized by the Journal of the American Ceramic Society. Pages 1-28 contain an Introduction and Literature Review for background purposes. Pages 29-59 entitled “Thermal Properties of (Zr,TM)B2 Solid Solutions with TM = Hf, Nb, W, Ti, and Y” was accepted for publication in the Journal of the American Ceramic Society in February of 2014. Pages 60-92 entitled “Thermal Properties of (Zr,TM)B2 Solid Solutions with TM = Ta, Mo, Re, V, and Cr” was submitted to the Journal of the American Ceramic Society in March of 2014.
    [Show full text]
  • WO 2018/008003 Al 11 January 2018 (11.01.2018) W !P O PCT
    (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2018/008003 Al 11 January 2018 (11.01.2018) W !P O PCT (51) International Patent Classification: mar P.; 120 Governors Drive, Amherst, Massachusetts C08L 61/26 (2006.01) C08K 5/17 (2006.01) 10003 (US). DESHMUKH, Subrajeet; 120 Governors C08K5/00 (2006.01) C08K 3/34 (2006.01) Drive, Amherst, Massachusetts 01003 (US). ZHAO, Caix- C08K 5/09 (2006.01) C08K 3/22 (2006.01) ia; 120 Governors Drive, Amherst, Massachusetts 01003 C08K 5/07 (2006.01) C08K 3/30 (2006.01) (US). (21) International Application Number: (81) Designated States (unless otherwise indicated, for every PCT/IB20 17/05413 1 kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (22) International Filing Date: CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 07 July 2017 (07.07.2017) DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (25) Filing Language: English HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, (26) Publication Language: English MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, (30) Priority Data: OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 62/359,865 08 July 2016 (08.07.2016) US SC, SD, SE, SG, SK, SL, SM, ST, SV, SY,TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
    [Show full text]