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refractory materials borides and carbides introductions

  • The wetting of refractory carbides, borides, and

    Summary. 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 ...

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  • 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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  • Ultra-High Temperature Materials II - Refractory

    Refractory Carbides I (Ta, Hf, Nb and Zr Carbides) Authors: Shabalin, Igor L. Provides exhaustive coverage for numerous alloys, ceramics, carbides, nitrides, borides, oxides and dioxides

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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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  • The hardness at high temperatures of some refractory ...

    Less-Common Metals, 5 (1963) 356-364 HARDNESS OF REFRACTORY CARBIDES AND BORIDES 363 A somewhat different type of behaviour was observed in the case of polycrystalline boron carbide. At room temperature this material was brittle but the deformation, under these experimental conditions, was entirely elastic and recoverable.

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  • Development of Refractory and Rare Earth Metal

    2016-1-1 · Boron carbide, borides of refractory and rare earth metals are potential materials for tron absorber application in nuclear reactors [1,2,5]. Neutron absorbing behavior is attributed to high neutron orption cross section of B 10 isotope (3800 barn).

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  • Handbook of refractory carbides and nitrides:

    1997-12-31 · THE ANALYSIS OF REFRACTORY BORIDES, CARBIDES, NITRIDES, AND SILICIDES. Technical Report Kriege, O H. 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 ...

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  • Refractory materials | Metallurgy for Dummies

    2021-1-19 · 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 factors such as temperature, atmosphere and what materials it will be in contact with. Refractories must be chosen according to the conditions they will face.

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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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  • 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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  • 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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  • 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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  • 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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  • 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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  • Refractory materials | Metallurgy for Dummies

    2021-1-19 · 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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  • 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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  • The Physics and Chemistry of Carbides, Nitrides and

    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…

    Get Price
  • Materials Science of Carbides, Nitrides and 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

    Get Price
  • Overview of Refractory Materials - PDHonline.com

    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 ...

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

    2011-11-27 · Reactor for plasmometallurgical production of refractory borides and carbides. I. V. Nozdrin 1, L. S. Shiryaeva 1, G. V. Galevskii 1 & V. V. Rudneva 1 Steel in Translation volume 41, pages 644–648 (2011)Cite this article

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  • CA1220319A - Refractory metal borides, 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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  • Reactor for plasmometallurgical production of

    Materials Science of Carbides, Nitrides and Borides by Y. G. Gogotsi, 1999, Springer Netherlands, Imprint, Springer edition, electronic resource in English

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  • Materials Science Of Carbides Nitrides And Borides |

    China Carbides And Borides - Select 2021 Carbides And Borides products from verified China Carbides And Borides manufacturers, suppliers on Made-in-China.com.

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  • Carbides | Introduction to Chemistry

    In this respect, boron carbide is similar to the boron-rich borides. Both silicon carbide (also known as carborundum) and boron carbide are very hard and refractory materials. Both materials have important industrial applications. Interstitial Carbides. Interstitial carbides describe the carbides of the group-IV, -V, and VI transition metals.

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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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  • 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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  • NANO-CRYSTALLINE REFRACTORY METAL CARBIDES,

    NANO-CRYSTALLINE REFRACTORY METAL CARBIDES, BORIDES OR NITRIDES WITH HOMOGENEOUSLY DISPERSED INCLUSIONS . United States Patent Application 20190225548 ... or a refractory metal hydride, an organic compound having carbon and hydrogen, and a filler material. Multilayered materials are also disclosed. Inventors: Dyatkin, Boris (Washington, DC, US) ...

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  • Formation and reactivity of borides, carbides and ...

    Borides, carbides and silicides are reviewed with special reference to newer production methods and fabrication techniques. Crystal structures and types of bonding in binary and ternary compounds are classified and discussed. ... International Journal of Refractory Metals and Hard Materials, 10.1016/j.ijrmhm.2016.02.005, 57, (31-41), (2016 ...

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  • Refractory Carbides - Ultramet

    2021-7-4 · 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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  • 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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  • Friction and wear of radiofrequency-sputtered borides ...

    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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  • '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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  • 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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  • 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
  • Formation and reactivity of borides, carbides and ...

    Borides, carbides and silicides are reviewed with special reference to newer production methods and fabrication techniques. Crystal structures and types of bonding in binary and ternary compounds are classified and discussed. ... International Journal of Refractory Metals and Hard Materials, 10.1016/j.ijrmhm.2016.02.005, 57, (31-41), (2016 ...

    Get Price
  • Carbides | Introduction to Chemistry

    In this respect, boron carbide is similar to the boron-rich borides. Both silicon carbide (also known as carborundum) and boron carbide are very hard and refractory materials. Both materials have important industrial applications. Interstitial Carbides. Interstitial carbides describe the carbides of the group-IV, -V, and VI transition metals.

    Get Price
  • FORMATION AND REACTIVITY OF SOME METAL

    Refractory Bprides .composed of B fit Ti Carbides bonded with Metals. Presented at 99th meeting Electrochem.Soc., VJash,

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

    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.

    Get Price
  • '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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  • Synthesis of polymeric precursors for refractory

    2014-12-1 · Free Online Library: Synthesis of polymeric precursors for refractory carbides and borides.(56TH ANNUAL SYMPOSIUM OF THE IDAHO ACADEMY OF SCIENCE: THEME: ENERGY, MATERIALS, AND NANOTECHNOLOGY, Brief article, Abstract) by 'Journal of the Idaho Academy of Science'; Science and technology, general Boron compounds Chemical properties Carbides …

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

    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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  • 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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  • 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

    Introduction. 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 ...

    Get Price
  • 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…

    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
  • 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.

    Get Price
  • 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...

    Get Price
  • CA1220319A - Refractory metal borides, carbides and ...

    CA1220319A CA000444385A CA444385A CA1220319A CA 1220319 A CA1220319 A CA 1220319A CA 000444385 A CA000444385 A CA 000444385A CA 444385 A CA444385 A CA 444385A CA ...

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  • Reactor for plasmometallurgical production of

    2011-11-27 · Reactor for plasmometallurgical production of refractory borides and carbides. I. V. Nozdrin 1, L. S. Shiryaeva 1, G. V. Galevskii 1 & V. V. Rudneva 1 Steel in Translation volume 41, pages 644–648 (2011)Cite this article

    Get Price
  • Materials Science Of Carbides Nitrides And Borides |

    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 …

    Get Price
  • Materials Science of Carbides, Nitrides and Borides

    Materials Science of Carbides, Nitrides and Borides by Y. G. Gogotsi, 1999, Springer Netherlands, Imprint, Springer edition, electronic resource in English

    Get Price
  • Carbides And Borides-China Carbides And Borides ...

    China Carbides And Borides - Select 2021 Carbides And Borides products from verified China Carbides And Borides manufacturers, suppliers on Made-in-China.com.

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  • Download Advanced Processing And Manufacturing ...

    2010-11-23 · This issue contains 25 invited and contributed papers, all peer reviewed according to the American Ceramic Society Review Process. The latest developments in processing and manufacturing technologies are covered, including smart processing, advanced composite manufacturing, novel forming and sintering technologies, microwave-processing, polymer-based processing, and film deposition …

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  • Corrosion control methods- PVD and CVD -

    View Corrosion control methods- PVD and CVD.ppt from CHEMISTRY CHY1011 at SRM University. CORROSION CONTROL METHODS-VAPOR DEPOSITION TECHNIQUES Dr. K. Rajendra Kumar Department of Chemistry VIT

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