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refractory materials borides and carbides featuring

  • THE ANALYSIS OF REFRACTORY BORIDES, CARBIDES,

    2021-6-26 · Methods are presented for the analysis of 41 refractory materials. An evaluation of the accuracy and the precision of these techniques are also given The materials studied are the borides of hafnium, molybdenum, niobiumL rhenium, tantalum, thorium, titanium, tungsten, uranium vanadium, and zirconium; the carbides of hafnium molybdenum, miobium ...

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  • Process for preparing refractory borides and carbides ...

    The U.S. Department of Energy's Office of Scientific and Technical Information

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  • THE ANALYSIS OF REFRACTORY BORIDES, CARBIDES,

    osti.gov technical report: the analysis of refractory borides, carbides, nitrides, and silicides

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  • [PDF] THE ANALYSIS OF REFRACTORY BORIDES,

    Methods are presented for the analysis of 41 refractory materials. An evaluation of the accuracy and the precision of these techniques are also given The materials studied are the borides of hafnium, molybdenum, niobiumL rhenium, tantalum, thorium, titanium, tungsten, uranium vanadium, and zirconium; the carbides of hafnium molybdenum, miobium, silicon, tantalum, thorium, titanium, …

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  • HEAT CONDUCTION OF REFRACTORY BORIDES,

    osti.gov journal article: heat conduction of refractory borides, carbides and nitrides Title: HEAT CONDUCTION OF REFRACTORY BORIDES, CARBIDES AND NITRIDES (in Russian) Full Record

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  • Use of glassy carbon vessels in the analysis of

    OSTI.GOV Journal Article: Use of glassy carbon vessels in the analysis of refractory nitrides, carbides, and borides

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  • The wetting of refractory carbides, borides, and

    The investigation has shown that the wetting of refractory compounds by metals is directly linked with the character of their chemical reaction, as well as with the direction of preferential transport of elements, from the melt to the refractory support or vice versa. The wetting of a support material by a melt can be controlled by means of additions to one of the contacting materials, which ...

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  • [PDF] The Analysis Of Refractory Borides Carbides

    The Analysis of Refractory Borides Carbides Nitrides and Silicides Book Description : Methods are presented for the analysis of 41 refractory materials. An evaluation of the accuracy and the precision of these techniques are also given The materials studied are the borides of hafnium, molybdenum, niobiumL rhenium, tantalum, thorium, titanium ...

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  • Borides and Carbides of Transition Elements

    2020-5-23 · Abstract: Oxides, borides and carbides of the transition elements are materials of great interest from a technologic point of view. Many of these materials are used in the form of thin films, so several techniques are commonly used to deposit them. …

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  • PREPARATION OF CRYSTALLINE REFRACTORY

    OSTI.GOV Journal Article: PREPARATION OF CRYSTALLINE REFRACTORY CARBIDES AND BORIDES BY ZONE MELTING. PREPARATION OF CRYSTALLINE REFRACTORY CARBIDES AND BORIDES BY ZONE MELTING. Full Record; Other Related Research; Authors: Brookes, C A; Packer, M E Publication Date: Fri Oct 31 00:00:00 EST 1969

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  • Processing of Refractory Metal Borides, Carbides and ...

    Transition metal borides, carbides and nitrides are candidates for very high temperature applications. A review of various processing techniques to fabricate dense monolithic and composite materials is presented. In particular, we focus on reactive hot pressing (RHP) which allows synthesis and densification to be achieved simultaneously. We report the RHP of composites in the Ti-B-N, Zr-B-C ...

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  • Use of refractory oxides, carbides and borides as

    1987-5-3 · Nuclear Instruments and Methods in Physics Research B26 (1987) 183-189 North-Holland, Amsterdam 183 USE OF REFRACTORY OXIDES, CARBIDES AND BORIDES AS TARGETS FOR ON-LINE MASS SEPARATION H.L. RAVN 1), T. BJ0RNSTAD 2), P. HOFF 3), O.C. JONSSON 1>, E. KUGLER1', S. SUNDELL, B. VOSICKI 1) and the ISOLDE Collaboration 1) CERN-ISOLDE, Geneva, …

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  • Studies of refractory carbides, nitrides, and borides as ...

    Abstract Thermionic emission properties of several kinds of refractory carbides, nitrides, and borides of the transition metals in the form of powder were investigated with a newly developed measur...

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  • Materials Science of Carbides, Nitrides and Borides

    2017-8-23 · of Carbides, Nitrides and Borides held in St. Petersburg, Russia, August 12-22, 1998. A total of 98 scientists from 16 countries participated in our ASI, making it a really international event. Participants ranged from graduate ... field of materials science of refractory materials…

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  • Materials Science of Carbides, Nitrides and Borides |

    After decades of research, the materials are being used in electronics, wear resistant, refractory and other applications, but numerous new applications are possible. Roughly equal numbers of papers cover theoretical and experimental research in the general field of materials science of refractory materials.

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  • Development of Refractory and Rare Earth Metal

    2016-1-1 · Among the non-oxide ceramics, carbides and borides such as B 4 C, TiB 2, ZrB 2, HfB 2, NbB 2, CrB 2, LaB 6, CeB 6, NdB 6, EuB 6 posses attractive combination of high temperature properties for engineering applications. However, they are difficult to synthesize and fabricate in the form of dense bodies, because of their refractory nature and low self diffusion coefficient.

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  • Overview of Refractory Materials - PDHonline.com

    2012-5-29 · and zirconium and some non-oxide refractories like carbides, nitrides, borides, silicates and graphite. The main types include fire-clay bricks, castables, ceramic fiber and insulating bricks that are ... refractory materials such as magnesia, which has a melting point of 5070 degrees. Requirements of Right Refractory

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  • Lanthanides: Boride, Carbide, and Nitride Compounds

    2012-12-17 · The rare earth borides, carbides, and nitrides tend to be highly refractory compounds, typically with melting points above 2300 K. One way of looking at the less metal-rich compounds is that the boron, carbon, and nitrogen atoms, respectively, form strongly covalent atomic networks in which rare earth atoms occupy particular spaces/voids.

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  • Ultra-High Temperature Materials III - Refractory

    This third volume is dedicated to refractory transition metal 4-5 groups carbides.Topics included are physical (structural, thermal, electro-magnetic, optical, mechanical, nuclear) and chemical (more than 3000 binary, ternary and multi-component systems).

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  • Electrical properties of high-temperature oxides,

    High-temperature materials including oxides, borides, carbides, and nitrides encompass all types of conductors: metallic, semiconducting, and ionic. Their electrical conductivities are generally very sensitive to impurities regardless of the type of conductor. For large band-gap materials, which includes most of the oxides, the conductivities at low temperatures are frequently dominated by ...

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  • Novel Polymer-Derived Carbide and Boride Refractory ...

    2015-12-11 · Ceramics such as refractory metal carbides and borides (e.g., ZrC, HfC, TaC, ZrB2, HfB2, etc.) are candidate materials for these applications because of their high thermal conductivity and the high melting temperatures of both the base material and the solid oxidation product.

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  • Processing of refractory metal borides, carbides and ...

    Transition metal borides, carbides and nitrides are candidates for very high temperature applications. A review of various processing techniques to fabricate dense monolithic and composite materials is presented. In particular, we focus on reactive hot pressing (RHP) which allows synthesis and densification to be achieved simultaneously. We report the RHP of composites in the Ti-B-N, Zr-B-C ...

    Get Price
  • Overview of Refractory Materials - PDHonline.com

    2012-5-29 · and zirconium and some non-oxide refractories like carbides, nitrides, borides, silicates and graphite. The main types include fire-clay bricks, castables, ceramic fiber and insulating bricks that are ... refractory materials such as magnesia, which has a melting point of 5070 degrees. Requirements of Right Refractory

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  • Refractory Hard Metals - AbeBooks

    Refractory Hard Metals: Borides, Carbides, Nitrides, and Silicides; the Basic Constituents of Cemented Hard Metals and Their Use as High-temperature Materials by Schwarzkopf, Paul; Kieffer, Richard; Leszynski, Werner; Benesovsky, Fritz and a great selection of related books, art and collectibles available now at AbeBooks.com.

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  • Combustion front dynamics in the combustion

    Combustion front dynamics in the combustion synthesis of refractory metal carbides and di-borides using time-resolved X-ray diffraction. Wong J(1), Larson EM, Waide PA, Frahm R. Author information: (1)Lawrence Livermore National Laboratory, University of California, Livermore, CA 94551, USA. [email protected]

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  • Use of refractory oxides, carbides and borides as

    Ion beams of a number of elements have been produced at the CERN-ISOLDE facility by 600-MeV proton bombardment of thick targets consisting of a variety of metal oxides, carbides and borides. The nuclear reaction products are released from the target material at high temperature and continuously transferred to the ion source of the ISOLDE on-line mass separator.

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  • Method of dry-soldering highly refractory materials ...

    Highly refractory binary ceramic materials such as carbides, borides, nitrides and silicides are joined to another material by forcing a solder material which includes therein at most 1 at. ‰of an active metal such as Al, Ba, Ce, Cr, Hf, Mo, Nb, Ni, Ta, Ti, Zr, etc. into intimate contact with the ceramic and then heating the so-formed couple to a temperature sufficiently high for a solid ...

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  • Refractories and Classification of Refractories –

    Refractory materials are generally classified as non-metals, metals, ceramics, and alloys thereof that melt or otherwise change from a solid form at temperatures above 3000°F. There are a variety of technical challenges associated with high temperature material design including their thermal-structural and thermal-chemical response during ...

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  • Materials — Plus Designs, Inc.

    The first volume focuses on carbon (graphite/graphene) and refractory metals (W, Re, Os, Ta, Mo, Nb, Ir). The second and third volumes are dedicated solely to refractory (ceramic) compounds (oxides, nitrides, carbides, borides, silicides) and to the complex materials – refractory alloys, carbon and ceramic composites, respectively.

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  • SHS of Refractory Carbides, Borides, Related Solid ...

    Since the inception of self-propagating high-temperature synthesis (SHS), the production of refractory carbides and borides was one of the main areas of SHS application. SHS provides unique reaction conditions, including extremely high reaction temperature and rapid heating/cooling, and produces materials with novel microstructures and ...

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  • Handbook Of Refractory Carbides Nitrides Properties ...

    2021-5-22 · CeramicsHandbook of Refractory Carbides and NitridesASM Specialty HandbookMaterials Science of Carbides, Nitrides and Borides Engineered Materials Handbook, Desk Edition This exhaustive work in three volumes with featuring cross-reference system provides a thorough overview of ultra-high

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  • 'The use of carbides in refractories' by James

    'With the new demands being made on the ceramic industry in mind, it was thought that an investigation of the ceramic possibilities of certain high melting refractory materials might prove of interest and value. The high melting materials are the oxides, carbides, nitrides, borides, and hydrides. Since a great deal of work has been done on the oxides, and relatively little on the others, the ...

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  • Ultra-high temperature materials I: Carbon (graphene ...

    The first volume focuses on carbon (graphite/graphene) and refractory metals (W, Re, Os, Ta, Mo, Nb, Ir). The second and third volumes are dedicated solely to refractory (ceramic) compounds (oxides, nitrides, carbides, borides, silicides) and to the complex materials - refractory alloys, carbon and ceramic composites, respectively.

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  • Processing and Characterization of Refractory

    2019-5-6 · reported in systems like high entropy borides [6] and high entropy carbides [7,8]. Compared with conventional ceramic materials, single phase HECs show superior mechanical properties contributed by the strain strengthening e ect from lattice distortion. For example, the high-entropy carbide fabricated

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  • Stability of reactive and refractory metal borides in ...

    2020-7-21 · High entropy materials, which include high entropy alloys, carbides, and borides, are a topic of substantial research interest due to the possibility of a large number of new material compositions that could fill gaps in application needs. There is a current ...

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  • Friction and wear of radiofrequency-sputtered borides ...

    Abstract Dispersion hardening by the Group IVb and Vb metal carbides has been demonstrated to improve the high temperature strength of chromium significantly 1 , and has created interest in the similar use of the borides of these metals. The purpose of this work was to characterize the elevated temperature formation and stability of these borides in chromium-base alloys, about which little is ...

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  • ‎Ultra-High Temperature Materials I on Apple Books

    The friction and wear properties of several refractory compound coatings were examined. These compounds were applied to 440 C bearing steel surfaces by radiofrequency (RF) sputtering. The refractory compounds were the titanium and molybdenum borides, the titanium and molybdenum silicides, and the titanium, molybdenum, and boron carbides.

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  • Some industrially important inorganic materials

    2014-5-16 · The first volume focuses on carbon (graphite/graphene) and refractory metals (W, Re, Os, Ta, Mo, Nb, Ir). The second and third volumes are dedicated solely to refractory (ceramic) compounds (oxides, nitrides, carbides, borides, silicides) and to the complex materials – refractory alloys, carbon and ceramic composites, respectively.

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  • Formation of highly resistant carbide and boride coatings ...

    2016-1-10 · carbides and borides of the above elements must be formed by the electro-chemical method [2, 3]. The analysis disclosed in [2, 3] shows that metals com-posing highly resistant carbides can be electrolytically depos-ited on a base metal out of their fluorides in a molten eutectic mixture of specific salts. Basically, this method represents the

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  • Ultra-High Temperature Materials I eBook by Igor L ...

    The first volume focuses on carbon (graphite/graphene) and refractory metals (W, Re, Os, Ta, Mo, Nb, Ir). The second and third volumes are dedicated solely to refractory (ceramic) compounds (oxides, nitrides, carbides, borides, silicides) and to the complex materials – refractory alloys, carbon and ceramic composites, respectively.

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  • Novel Rhenium Carbides at 200 GPa - Khandarkhaeva

    2020-4-15 · Chemical compounds of 5d transition metals and carbon or other first-row elements, as B and N, often possess interesting properties attributed to strong covalent bonding. 1 Many of carbides, borides, and nitrides reveal very high melting points (for example, over 3500 K for ZrC, NbC, HfC, TaC), 2 large bulk moduli (K 0 > 390 GPa for Re 2 C, 3 ...

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  • Microwave technique for brazing materials - California ...

    1998-1-16 · Refractory hard metal includes a class of materials such as carbides, borides, and silicides that are high temperature materials. These materials have a hardness of 9 or greater on the MOH scale of hardness and melt at temperatures over 1000° C.

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  • Strength Of Materials N5 Past Papers

    2021-6-27 · Materials Science of Carbides, Nitrides and Borides Measurement, control, automation. Friction Stir Welding and Processing The Publishers Weekly Problems in Strength of Materials Applied Strength of Materials for Engineering Technology, 19th Ed.

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  • Formation of highly resistant carbide and boride

    Achetez et téléchargez ebook Ultra-High Temperature Materials I: Carbon (Graphene/Graphite) and Refractory Metals (English Edition): Boutique Kindle - Organic : Amazon.fr

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  • Ultra-High Temperature Materials I: Carbon (Graphene ...

    Ultra-High Temperature Materials I: Carbon (Graphene/Graphite) and Refractory Metals è un libro di Igor L. ShabalinSpringer : acquista su IBS a 199.49€!

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  • Ultra-High Temperature Materials I: Carbon (Graphene ...

    2020-8-31 · High entropy materials, which include high entropy alloys, carbides, and borides, are a topic of substantial research interest due to the possibility of a large number of new material compositions that could fill gaps in application needs.

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  • The Physics and Chemistry of Carbides, Nitrides and

    2015-12-11 · Ceramics such as refractory metal carbides and borides (e.g., ZrC, HfC, TaC, ZrB2, HfB2, etc.) are candidate materials for these applications because of their high thermal conductivity and the high melting temperatures of both the base material and the solid oxidation product.

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  • Novel Polymer-Derived Carbide and Boride Refractory ...

    The Analysis of Refractory Borides Carbides Nitrides and Silicides Author: Publish On: 1959 Methods are presented for the analysis of 41 refractory materials.

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  • Download [PDF] The Analysis Of Refractory Borides

    2012-5-29 · and zirconium and some non-oxide refractories like carbides, nitrides, borides, silicates and graphite. The main types include fire-clay bricks, castables, ceramic fiber and insulating bricks that are ... refractory materials such as magnesia, which has a melting point of 5070 degrees. Requirements of Right Refractory

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  • Overview of Refractory Materials - PDHonline.com

    Titanium and zirconium borides and carbide boride mixtures are particularly suitable for this purpose, and the project has required the preparation and fabrication of these materials in the form of massive pieces of a closely controlled quality. It has been found possible to produce these at an acceptable cost.

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  • The Application of the Refractory Carbides and

    Materials Science of Carbides Nitrides and Borides . Download or Read online Materials Science of Carbides Nitrides and Borides full in PDF, ePub and kindle. This book written by Yury G. Gogotsi and published by Springer Science & Business Media which was …

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  • Materials Science Of Carbides Nitrides And Borides |

    2017-1-1 · Several materials of nitrides, carbides, and borides are used in oil recovery and as catalysts for conversion of alcohol to ketone/aldehydes , , , , . Some of them show high magnetization (Fe 16 N 12, 260–286 emu/g), which is more than Fe (218 emu/g) , , , , .

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  • Synthesis and Characterization of Borides, Carbides,

    1983-1-1 · Refractory compounds predeterminantly comprise ones of transition and rare earth metals with non-metals such as B, C, N, 0, Si, P, S (1, 2). Of most interest are compounds that involve B, C and Si, i.e. borides, carbides and silicides, these being the most refractory and showing a combination of extreme properties.

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  • Crystal growth of refractory compounds from

    The first volume focuses on carbon (graphite/graphene) and refractory metals (W, Re, Os, Ta, Mo, Nb, Ir). The second and third volumes are dedicated solely to refractory (ceramic) compounds (oxides, nitrides, carbides, borides, silicides) and to the complex materials – refractory alloys, carbon and ceramic composites, respectively.

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  • Ultra-High Temperature Materials I: Carbon (Graphene ...

    This exhaustive work in three volumes with featuring cross-reference system provides a thorough overview of ultra-high temperature materials - from elements and chemical compounds to alloys and composites. Topics included are physical (crystallographic, thermodynamic, thermo-physical, electrical, optical, physico-mechanical, nuclear) and chemical (solid-state diffusion, interaction with ...

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  • REVIEW OF RECENT RESEARCH ON REFRACTORY

    2021-2-28 · Skip to content navigation. Menu. University Libraries

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  • Synthesis of Polymeric Precursors for Refractory

    Synthesis of Polymeric Precursors for Refractory Carbides and Borides Thesis Link to document; Overview; Other; Overview abstract . Thesis (M.S., Chemical and Materials Science Engineering) -- University of Idaho, 2015 | Hafnium Carbide and diboride are ceramics with ultra-high melting temperatures representing the upper end of refractory materials.

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  • Synthesis and Characterization of an Alumina Forming ...

    Self-Propagating High Temperature Synthesis of Refractory Nitrides, Carbides and Borides p.183. Spray Drying of Ceramic Slurries p.189. Sintering Aspects of Nonoxide Ceramics ... Home Key Engineering Materials Key Engineering Materials Vols. 56-57 Self-Propagating High Temperature Synthesis of...

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  • Self-Propagating High Temperature Synthesis of

    2009-8-31 · various layer compositions including refractory borides (TiB 2 and ZrB 2), 7 carbides (SiC, B 4 C, and WC), 6–9 or their mixtures (TiB 2 +SiC+B 4 C), 7 relying on the solid-state diffusion bonding mechanism. Though relatively strong bonding is achieved, this method suffers from dis-tinct shortcomings. It requires long (hours), high-

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  • Combustion joining of refractory materials:

    2019-7-16 · the refractory metal carbides and borides to be prepared by radio frequency induction melting. Using this apparatus, fully dense single phase samples were prepared from several of these compounds, but the quality of the products was limited and it …

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  • PHWDOVDQGPHWDO OLNHFRPSRXQGV - IOPscience

    2001-2-14 · Refractories are ceramic materials capable of withstanding high temperatures. The bulk of refractory materials consist of single or mixed high melting point oxides such as silicon, aluminum, magnesium, calcium and zirconium. Non-oxide refractories also exist and include materials such as carbides, nitrides, borides and graphite.

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  • Refractories - An Overview - Materials Engineering

    2018-9-25 · New Superhard Ternary Borides in Composite Materials 63 heating was carried out in a large-scale Bor 6-CM-3 installation for deposition of boride coating on K10 plates. For simultaneous boron-zirkonizing (or boron-chromizing) of steel samples by powdery borides ZrB 2 (CrB 2) and some activators were used the heating occurring at 950-1050 oC in

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  • Borides | Treibacher Industrie AG

    The first volume focuses on carbon (graphite/graphene) and refractory metals (W, Re, Os, Ta, Mo, Nb, Ir). The second and third volumes are dedicated solely to refractory (ceramic) compounds (oxides, nitrides, carbides, borides, silicides) and to the complex materials refractory alloys, carbon and ceramic composites, respectively.

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