Thermophysical properties for hafnium carbide (HfC) versus temperature from 2000 to 5000 K (experiment)
Source abstract
Abstract
Hafnium carbide HfC (at%: 42%C; 49%Hf; 7%O) was investigated under rapid heating by a current pulse, in a time of 5–8 μs. The temperature was measured by radiance of a flat surface of a carbide plate (thickness 130 microns) at a given emissivity. This carbide plate was clamped between two K-8 plates, to prevent evaporation of the carbide and to prevent surface discharge at high voltage along the sample. Input specific energy (enthalpy), melting heat, solidus and liquidus temperatures (4000–4200 K), electrical resistance and heat capacity for solid and liquid states were measured up to 5000 K.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Thermodynamic and Structural Properties of Metals and Alloys · Silicon and Solar Cell Technologies · Metallurgical Processes and Thermodynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (16)
Show source-provided references
1. Savvatimskiy AI, Onufriev SV (2016) Method and apparatus for studying high temperature properties of conductive materials in the interests of nuclear power engineering. Phys At Nucl 79(14):1637–1655. https://doi.org/10.1134/S106377881614013110.1134/S1063778816140131 ↗
2. Savvatimskiy AI, Onufriev SV (2018) Measurement of the specific heat CV and resistance of liquid carbon close to isochoric condition. Carbon 135:260–262. https://doi.org/10.1016/j.carbon.2018.04.00910.1016/j.carbon.2018.04.009 ↗
3. Andrievskii RA, Strel’nikova NS, Poltoratskii NI, Kharkhardin ED, Smirnov VS (1967) Melting point in systems ZrC-HfC, TaC-ZrC, TaC-HfC, soviet powder. Metallur Metal Ceram 6(1):65–67. https://doi.org/10.1007/BF0077338510.1007/BF00773385 ↗
4. Onufriev SV, Savvatimskiy AI, Muboyadzhyan SA (2019) Investigation of physical properties of 0.9ZrN + 0.1ZrO2 ceramics at 2000–4500 K by current pulse heating. Mater Res Express 6:125554. https://doi.org/10.1088/2053-1591/ab6e3910.1088/2053-1591/ab6e39 ↗
5. Kondratyev A, Muboyajan S, Onufriev S, Savvatimskiy A (2015) The application of the fast pulse heating method for investigation of carbon-rich side of Zr–C phase diagram under high temperatures. J Alloy Compd 631:52–59. https://doi.org/10.1016/j.jallcom.2014.11.21610.1016/j.jallcom.2014.11.216 ↗
6. Zapadaeva TE, Petrov VA, Sokolov VV (1980) Emissivity of stoichmetric hafnium carbide at high temperatures, high temperature. J High Temp 18(1):68–74 (in Russian)
7. Savvatimskii AI, Onufriev SV (2020) Review: Investigation of carbon physical properties under high temperatures 2000–8000 К (on the experimental studies). Phys Usp. https://doi.org/10.3367/UFNe.2019.10.03866510.3367/UFNe.2019.10.038665 ↗
8. Sheindlin M, Falyakhov T, Petukhov S, Valyano G, Vasin A (2018) Recent advances in the study of high-temperature behaviour of non-stoichiometric TaCx, HfCx and ZrCx carbides in the domain of their congruent melting point. Adv Appl Ceram 117(S1):S48–S55. https://doi.org/10.1080/17436753.2018.151081910.1080/17436753.2018.1510819 ↗
9. Rudy E (1965) Ternary phase equilibria in transition metal-boron-carbon-silicon systems. Part II. Ternary systems. Vol. I Air Force Materials Laboratory, Wright Patterson Air Force Base), Ta-Hf-C system, pp 1–8410.21236/ADA470307 ↗
10. Onufriev SV, Savvatimskiy AI (2018) Measuring the specific heat of conducting substances in conditions of microsecond heating with a current pulse. High Temp 56(5):678–684. https://doi.org/10.31857/S004036440003361-110.31857/S004036440003361-1 ↗
11. Savvatimskiy AI, Onufriev SV, Muboyadzhyan SA (2017) Measurement of ZrC properties up to 5000 K by fast electrical pulse heating method. J Mater Res 32(7):1287–1294. https://doi.org/10.1557/jmr.2017.6110.1557/jmr.2017.61 ↗
12. Savvatimskiy A, Onufriev S, Kondratyev A (2016) Capabilities of pulse current heating to study the properties of graphite at elevated pressures and at high temperatures (up to 5000 K). Carbon 98:534–536. https://doi.org/10.1016/j.carbon.2015.11.04410.1016/j.carbon.2015.11.044 ↗
13. Savvatimskiy AI (2018) Nonequilibrium defects upon the pulsed heating of solids. Bull Russ Acad Sci Phys 82(4):359–362. https://doi.org/10.3103/S106287381804017210.3103/S1062873818040172 ↗
14. Savvatimskiy AI (2015) Carbon at high temperatures, vol 134. Series in materials science. Springer, Berlin, pp 1–246. https://doi.org/10.1007/978-3-319-21350-7. ISBN 978-3-319-21349-110.1007/978-3-319-21350-7 ↗
15. Savvatimskiy AI, Onufriev SV, Muboyadzhyan SA (2019) Thermophysical properties of the most refractory carbide Ta0.8Hf0.2C under high temperatures (2000–5000 K). J Eur Ceram Soc 39:907–914. https://doi.org/10.1016/j.jeurceramsoc.2018.11.03010.1016/j.jeurceramsoc.2018.11.030 ↗
16. Cedillos-Barraza O, Manara D, Boboridis K, Watkins T, Grasso S, Jayaseelan D, Konings R, Reece MJ, Lee WE (2016) Investigating the highest melting temperature materials: a laser melting study of the TaC-HfC system. Sci Rep 6:37962. https://doi.org/10.1038/srep3796210.1038/srep37962 ↗