Hartstoffe

Kieffer, R.; Benesovsky, F.

doi:10.1007/978-3-7091-7151-6

Cited by 181 publications

(37 citation statements)

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“…The original doubts of R. Kieffer and Benesovsky (8 ) , which attributed the appearance of this phase to oxygen stabilization, have been confirmed in recent investigations by I. F. Ferguson,et.al. (30) The existence and struc-, (8, 33)…”

Section: J L Lander and L H Germer Claimed To Have Found A Cubicmentioning

confidence: 66%

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Ternary Phase Equilibria in Transition Metal-Boron-Carbon-Silicon Systems. Part 1. Related Binary Systems. Volume 1. Mo-C System

Rudy¹,

Chang²,

Windisch³

1965

107

112

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Section: J L Lander and L H Germer Claimed To Have Found A Cubicmentioning

confidence: 66%

“…F. Benesovsky ( 8 ) (Figure 3). The orthorhombic axes are related to the hexagonal dimensions by a c H' bo = aH1 co = a H (11, 12, 13 -q-MoC, later shown to exist in the composition range from 38-40 At% C, has a hexagonal (D 4h -type) structure with a = 3.…”

Section: Literature Reviewmentioning

confidence: 99%

Ternary Phase Equilibria in Transition Metal-Boron-Carbon-Silicon Systems. Part 1. Related Binary Systems. Volume 1. Mo-C System

Rudy¹,

Chang²,

Windisch³

1965

107

112

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“…The niobium -boron phase diagram [38] shows the existence of Nb 3 B 2 , NbB, Nb 3 B 4 , and NbB 2 . However, these high-melting, very hard materials, have no industrial uses.…”

Section: Carbides and Hard Materialsmentioning

confidence: 99%

“…The precise effect of niobium on the composition, microstructure, and properties of these hard materials is not yet fully understood [36]. In practice, up to 50 % of the more expensive TaC can be replaced by NbC without appreciably affecting the hardness or fracture strength [37].…”

Section: Carbides and Hard Materialsmentioning

confidence: 99%

Niobium and Niobium Compounds

Albrecht

Cymorek

Eckert

2011

Ullmann's Encyclopedia of Industrial Chemistry

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The article contains sections titled: 1. Introduction 2. Properties 2.1. Physical Properties 2.2. Chemical Properties 3. Occurrence 4. Processing of Niobium Ores 4.1. Winning of Pyrochlore Concentrates 4.2. Treatment of Pyrochlore Concentrates 4.3. Production of Niobium Oxide from Columbites and Tantalites 4.3.1. Extraction Processes 4.3.2. Chlorination 5. Niobium Compounds 5.1. Oxides 5.2. Halides 5.3. Carbides and Hard Materials 6. Niobium Metal 6.1. Reduction of Niobium Pentoxide 6.2. Reduction of Halides 6.3. Refining 6.4. Uses 7. Ferroniobium 7.1. Production 7.2. Uses of Ferroniobium 8. Analysis 9. Economic Aspects

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“…Several of the carbides and nitrides show number of unusual combinations in their physical properties [1,2]. The carbides of transition metal have extremely high melting points and therefore referred to as refractory carbides.…”

Section: Introductionmentioning

confidence: 99%

Phase transition and high pressure behavior of Zirconium and Niobium carbides

Singh¹,

Aynyas²,

Sanyal

2009

Open Physics

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Abstract:We have predicted the phase transition pressure (P T ) and high pressure behavior of Zirconium and Niobium carbide (ZrC, NbC). The high pressure structural phase transitions in ZrC and NbC has been studied by using a two body inter-ionic potential model, which includes the Coulomb screening effect, due to the semimetallic nature of these compounds. These transition metal carbides have been found to undergo NaCl (B1) to CsCl (B2)-type structural phase transition, at high pressure like other binary systems. We predict such structural transformation in ZrC and NbC at a pressure of 98GPa and 85GPa respectively. We have also predicted second order elastic constant and bulk modulus. The present theoretical work has been compared with the corresponding experimental data and prediction of LAPW and GGA and LDA theories. PACS

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Hartstoffe

Cited by 181 publications

References 0 publications

Ternary Phase Equilibria in Transition Metal-Boron-Carbon-Silicon Systems. Part 1. Related Binary Systems. Volume 1. Mo-C System

Ternary Phase Equilibria in Transition Metal-Boron-Carbon-Silicon Systems. Part 1. Related Binary Systems. Volume 1. Mo-C System

Niobium and Niobium Compounds

Phase transition and high pressure behavior of Zirconium and Niobium carbides

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