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  • THE ANALYSIS OF REFRACTORY BORIDES, CARBIDES,

    2021-5-17 · 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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  • 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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  • Ultra-High Temperature Materials II - Refractory

    Ultra-High Temperature Materials II Refractory Carbides I (Ta, Hf, Nb and Zr Carbides) Authors: ... Re, Os, Ta, Mo, Nb, Ir) and compounds (oxides, nitrides, carbides, borides, silicides) with melting points in this range. It will be of interest to researchers, engineers, postgraduate, graduate and undergraduate students alike. The reader is ...

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  • Handbook Of Refractory Carbides Nitrides Properties ...

    2021-5-17 · Processing And ApplicationsRefractory carbides and nitrides are useful materials with numerous industrial applications and a promising future, in addition to being materials of great interest to the scientific community. Although most of their applications are recent, the refractory carbides and nitrides have been known for over one hundred years.

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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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  • Process for preparing refractory borides and carbides ...

    As is well known, certain borides and carbides are highly refractory and are useful in the fabrication of products capable of withstanding high temperatures and physical and chemical attack. Titanium diboride (TiB 2 ), for example, is useful in the fabrication of bushing materials, bearing liners, nozzles and …

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

    Because of the high melting points of refractory metal carbides, nitrides and silicides there is a need for processes like self-combustion high temperature synthesis (SHS), spark plasma sintering ...

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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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  • The wetting of refractory carbides, borides, and

    1966-7-1 · 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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  • 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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  • 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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  • The Physics and Chemistry of Carbides, Nitrides 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
  • Processing of Refractory Metal Borides, Carbides and ...

    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 ...

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

    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.

    Get Price
  • Processing of Refractory metal Borides, Carbides and ...

    Request PDF | Ultra-High Temperature Materials III: Refractory Carbides II (Ti and V Carbides) | This exhaustive work in several volumes and over 2500 pages provides a thorough treatment of ultra ...

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  • Ultra-High Temperature Materials III: Refractory

    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.

    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

    2020-7-6 · The bulk of refractory materials consist of single or mixed high melting point oxides of elements such as silicon, aluminium, magnesium, calcium and zirconium. Non-oxide refractories also exist and include materials such as carbides, nitrides, borides and graphite. The actual composition of a refractory material is dependent on operating ...

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  • Refractory materials | Metallurgy for Dummies

    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.

    Get Price
  • Refractory Carbides - Ultramet

    2021-5-27 · Refractory Carbides. Hard, wear-resistant, chemically inert, chemically resistant, and nearly impervious to hydrogen at high temperatures, refractory carbides can be formed by chemical vapor deposition at temperatures as low as 10% of their melting point. Ultramet offers the following materials, along with other carbides, nitrides, and silicides:

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

    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 measuring device and evaluated by the figure of merit defined as the ratio of the effective work function to the working temperature at which the vapor pressure becomes 1 x 10(-5) Torr.

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  • Handbook of Refractory Carbides and Nitrides |

    Refractory carbides and nitrides are materials with a high melting point, arbitrarily selected as greater than 1800°C and must have a high degree of chemical stability. Carbides and nitrides can be divided into several types depending on their different physicochemical structures and characteristics.

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  • Process for preparing refractory borides and carbides ...

    As is well known, certain borides and carbides are highly refractory and are useful in the fabrication of products capable of withstanding high temperatures and physical and chemical attack. Titanium diboride (TiB 2 ), for example, is useful in the fabrication of bushing materials, bearing liners, nozzles and …

    Get Price
  • Materials — Plus Designs, Inc.

    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 ...

    Get Price
  • Handbook Of Refractory Carbides Nitrides Properties ...

    2021-5-22 · Refractory carbides and nitrides are useful materials with numerous industrial applications and a promising future, in addition to being materials of great interest to the scientific community. Although most of their applications are recent, the refractory carbides and nitrides have been known for over one hundred years.

    Get Price
  • Ultra-High Temperature Materials III: Refractory

    Request PDF | Ultra-High Temperature Materials III: Refractory Carbides II (Ti and V Carbides) | This exhaustive work in several volumes and over 2500 pages provides a thorough treatment of ultra ...

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  • Ultra-High Temperature Materials II: Refractory

    Ultra-High Temperature Materials II: Refractory Carbides I (Ta, Hf, Nb and Zr Carbides) Igor L. Shabalin. 0 ... Re, Os, Ta, Mo, Nb, Ir) and compounds (oxides, nitrides, carbides, borides, silicides) with melting points in this range. It will be of interest to researchers, engineers, postgraduate, graduate and undergraduate students alike. The ...

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  • Technology of production of hafnium carbide, etc ...

    2019-9-24 · This approach can be applied to other refractory metals and materials: carbides and borides of tantalum, tungsten, molybdenum, etc. Certificate of hafnium carbide: Hafnium carbide is the most refractory material in the world (the temperature of its melting point 3890 °C, the boiling point is 5400 °C).

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  • NON-OXIDE REFRACTORIES - Coggle Diagram

    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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  • Refractory Carbides - Ultramet

    2021-5-27 · Refractory Carbides. Hard, wear-resistant, chemically inert, chemically resistant, and nearly impervious to hydrogen at high temperatures, refractory carbides can be formed by chemical vapor deposition at temperatures as low as 10% of their melting point. Ultramet offers the following materials, along with other carbides, nitrides, and silicides:

    Get Price
  • Borides & Carbides - qkmaterials.com

    Borides & Carbides. A boride is a compound consisting of boron and a less electronegative element such as silicon boride. The borides of transition and rare-earth metals are considered for application as wear-resistant and corrosion-resistant, decorative or thermionic coatings.

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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 ...

    Get Price
  • 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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  • Handbook Of Refractory Carbides Nitrides Properties ...

    2021-5-25 · The Physics and Chemistry of Carbides, Nitrides and Borides 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.

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  • Ultra-High Temperature Materials II: Refractory

    Ultra-High Temperature Materials II: Refractory Carbides I (Ta, Hf, Nb and Zr Carbides) 1st ed. 2019 Edition by Igor L. Shabalin (Author) ISBN-13: 978-9402413007

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  • The Physics and Chemistry of Carbides, Nitrides and

    Carbides, nitrides and borides are families of related refractory materials. Traditionally they have been employed in applications associated with engineering ceramics where either high temperature strength or stability is of primary importance. In recent years there has been a growing awareness of the interesting electrical, thermal and optical properties exhibited by these materials, and the ...

    Get Price
  • Materials — Plus Designs, Inc.

    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 ...

    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

    Get Price
  • Ultra-High Temperature Materials II: Refractory

    Ultra-High Temperature Materials II: Refractory Carbides I (Ta, Hf, Nb and Zr Carbides) Igor L. Shabalin. 0 ... Re, Os, Ta, Mo, Nb, Ir) and compounds (oxides, nitrides, carbides, borides, silicides) with melting points in this range. It will be of interest to researchers, engineers, postgraduate, graduate and undergraduate students alike. The ...

    Get Price
  • Borides & Carbides - qkmaterials.com

    Borides & Carbides. QUKEN provides a standard range of borides and carbides evaporation materials optimized for the special requirements of physical vapor deposition (PVD). These materials come as various geometric shapes - Foils, Granules, Pellets, Rods, and Sheets, etc. Please find our materials …

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  • Refractory Carbides - Ultramet

    2021-5-27 · Refractory Carbides. Hard, wear-resistant, chemically inert, chemically resistant, and nearly impervious to hydrogen at high temperatures, refractory carbides can be formed by chemical vapor deposition at temperatures as low as 10% of their melting point. Ultramet offers the following materials, along with other carbides, nitrides, and silicides:

    Get Price
  • High temperature, refractory materials, bricks, fibers ...

    REFRACTORY. Refractories are primarily in-organic ceramic materials designed to withstand very high temperatures (>1000 °F) encountered in the manufacturing process. Refractories have higher heat resistance than metals and alloys and are resistant to thermal stress, physical wear, and corrosion. Hence they find wide applications in oil and gas ...

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  • (PDF) Properties of Refractory Metal Borides and

    Properties of Refractory Metal Borides and Carbides Deposited by Electrochemical Synthesis from Molten Salts July 1998 Journal of Materials Processing and Manufacturing Science 7(1):127-132

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  • Ultra-High Temperature Materials II: Refractory

    Ultra-High Temperature Materials II: Refractory Carbides I (Ta, Hf, Nb and Zr Carbides) 1st ed. 2019 Edition by Igor L. Shabalin (Author) ISBN-13: 978-9402413007

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  • Handbook Of Refractory Carbides Nitrides Properties ...

    2021-5-27 · high temperatures. Typical UHTC materials are the carbides, nitrides, and borides oftransition metals, but the Group IV compounds (Ti, Zr, Hf) plus TaCare generally considered to be the main focus of research due tothe superior melting temperatures and stable high-meltingtemperature oxide that forms in situ.

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  • Handbook Of Refractory Carbides Nitrides Properties ...

    2021-6-3 · Handbook of Refractory Carbides & Nitrides-Hugh O. Pierson 1996-12-31 Refractory carbides and nitrides are useful materials with numerous industrial applications and a promising future, in addition to being materials of great interest to the scientific community. Although …

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  • International Journal of Refractory Metals and Hard

    2 天前 · Hard materials that are included in the scope of this journal are defined as materials with hardness values higher than 1000 kg/mm 2, primarily intended for applications as manufacturing tools or wear resistant components in mechanical systems. Thus they encompass carbides, nitrides and borides of metals, and related compounds.

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  • Handbook Of Refractory Carbides Nitrides Properties ...

    2021-5-20 · Advanced Catalytic Materials Refractory carbides and nitrides are useful materials with numerous industrial applications and a promising future, in addition to being materials of great interest to the scientific community. Although most of their applications are recent, the refractory carbides and nitrides have been known for over one hundred ...

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  • Handbook Of Refractory Carbides Nitrides Properties ...

    2021-5-25 · Refractory Materials Refractory carbides and nitrides are useful materials with numerous industrial applications and a promising future, in addition to being materials of great interest to the scientific community. Although most of their applications are recent, the refractory carbides and nitrides have been known for over one hundred years.

    Get Price
  • Amazon.com: The Physics and Chemistry of Carbides ...

    Carbides, nitrides and borides are families of related refractory materials. Traditionally they have been employed in applications associated with engineering ceramics where either high temperature strength or stability is of primary importance. In recent years there has been a growing awareness of the interesting electrical, thermal and ...

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  • (PDF) Use of refractory oxides, carbides and borides as ...

    Use of refractory oxides, carbides and borides as targets for on-line mass separation. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1987. Tor Bjørnstad. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 14 Full PDFs related to this paper.

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  • Handbook Of Refractory Carbides Nitrides Properties ...

    2021-5-25 · Refractory Materials Refractory carbides and nitrides are useful materials with numerous industrial applications and a promising future, in addition to being materials of great interest to the scientific community. Although most of their applications are recent, the refractory carbides and nitrides have been known for over one hundred years.

    Get Price
  • International Journal of Refractory Metals and Hard

    2 天前 · Hard materials that are included in the scope of this journal are defined as materials with hardness values higher than 1000 kg/mm 2, primarily intended for applications as manufacturing tools or wear resistant components in mechanical systems. Thus they encompass carbides, nitrides and borides of metals, and related compounds.

    Get Price
  • International Journal of Refractory Metals and Hard

    International Journal of Refractory Metals and Hard Materials should be cited as Int J Refract Hard Met for abstracting, indexing and referencing purposes. ... Thus they encompass carbides, nitrides and borides of metals, and related compounds. A special focus of this journal is put on the family of hardmetals, which is also known as cemented ...

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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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  • Combustion joining of refractory materials:

    This international journal publishes papers concerned with all aspects of the science, technology and application of refractory metals and hard materials. New technological developments now enlarge the scope to cover those metals with melting points around 2000 degrees Centigrade and higher, with similar powder metallurgical production and fields of application.

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  • Materials Science: Tutorials: Ceramics

    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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  • Nonoxide High-Melting Point Compounds as

    Abstract: Authors have studied the interaction between high-melting compounds from various classes, such as transition-metal carbides, borides, nitrides, and silicides, and covalent-bonded B 4 C, SiC, Si 3 N 4, AlN etc. (over 160 phase diagrams), ternary B 4 C-SiC-Me d B 2, SiC-TiC-TiB 2 eut. (in some sistems reducing reaches 1200 °C).

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