Group IVB and VB Metal Carbide-Carbon Eutectic Temperatures

Adelsberg, L.M.; Cadoff, L. H.; Tobin, Joseph M.

doi:10.1111/j.1151-2916.1966.tb13167.x

Cited by 19 publications

(3 citation statements)

References 3 publications

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“…Chaneya and Carlson [20] investigated the vanadium-rich solvus of V-C system for the temperature range from 1373 to 1923 K. The solubility decreased from a maximum of 4.3 at.% C at 1923 K to 0.5 at.% C at 1373 K. The liquidus curves were determined by Adelsberg and Cadoff [21] who equilibrated V or VC with C at different temperatures and chemically analyzed the liquid phase in equilibrium with the solid at each temperature. The V-rich boundary of V 2 C was measured by Storms and McNeal [13].…”

Section: Experimental Data For Phase Diagrammentioning

confidence: 99%

Thermodynamic re-assessment of the V–C system

Wang

et al. 2006

Journal of Alloys and Compounds

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Section: Experimental Data For Phase Diagrammentioning

confidence: 99%

Thermodynamic re-assessment of the V–C system

Wang

et al. 2006

Journal of Alloys and Compounds

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“…and this work is generally admitted as a major contribution in the literature. This work proposes a reliable assessment of the system based on a wide compilation of experimental data from previous works . As previously mentioned, the BCC_A2, HCP_A3, and FCC_B1 phases are interstitial solid solution phases so that they can be described by the same thermodynamic model based on an interstitial two sublattices description (CEF: Compound Energy Formalism), in which Hf occupies the first sublattice whereas C and vacancies (Va) will substitute each other on the second sublattice.…”

Section: Resultsmentioning

confidence: 99%

“…C–Hf phase diagram calculated from Bitterman et al . optimized parameters with some experimental data [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Resultsmentioning

confidence: 99%

Experimental investigation and thermodynamic evaluation of the C–Hf–O ternary system

et al. 2017

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The first part of this work is dedicated to an experimental investigation of the C-Hf-O system and in particular to the stability domain of the HfC x O y oxycarbide phase formed through the carbothermal reduction in HfO 2 by carbon black at 1650 and 1750°C. This study which has been carried out by coupling chemical elemental analysis of powder with a structural approach by X-ray powder diffraction and Transmission Electron Microscopy (TEM) shows that the solid solution of the oxygen ranges from HfC 0.98AE0.01 O 0.02AE0.03 to HfC 0.90AE0.01 O 0.10AE0.03 at 1650°C and from HfC 0.97AE0.01 O 0.03AE0.03 to HfC 0.89AE0.01 O 0.11AE0.03 at 1750°C. It was then concluded that contrary with earlier previous results from the literature, the stability field of the solid solution is very limited and not very sensitive to temperature. This behavior is also in contrast with results obtained on the ZrC x O y oxycarbide which shows an isostructural form of HfC x O y . The second part of the paper reports on the first modeling of the ternary thermodynamic diagram of the C-Hf-O system by the CALPHAD method. The accurate data experimentally obtained on the solid solution were integrated as diagrammatic data for the calculation. The modeling was based on from already published binary assessments after a selection of compatible binary models and the description of the HfC x O y solid solution was then added and optimized using the data of this work. As a result, a set of coherent parameters has been obtained, allowing to calculate isothermal sections of this C-Hf-O ternary system. K E Y W O R D Soxycarbides, solid solutions, thermodynamics, transmission electron micros, X-ray methods

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Tantalum Carbides

Shabalin¹

2019

Ultra-High Temperature Materials II

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Group IVB and VB Metal Carbide-Carbon Eutectic Temperatures

Cited by 19 publications

References 3 publications

Thermodynamic re-assessment of the V–C system

Thermodynamic re-assessment of the V–C system

Experimental investigation and thermodynamic evaluation of the C–Hf–O ternary system

Tantalum Carbides

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