Microstructure, mechanical properties and oxidation behavior of TaC- and HfC-based materials containing short SiC fiber
Source abstract
Abstract
Abstract TaC- and HfC-based composites containing 15 vol% short SiC fibers as reinforcing phase were produced by hot pressing at 1700–1750 °C. Suitable sintering additives were selected in order to get a full densification at temperatures well-tolerated by SiC fibers. Microstructural characterization outlined a strong interaction between the carbide matrix and SiC fibers. The following properties were evaluated: Vickers hardness, fracture toughness by chevron notched beams, elastic modulus, 4-pt bending strength at room temperature and at 1200 °C, linear CTE up to 1300 °C in Ar, and thermal conductivity up to 1900 °C in Ar. Oxidation tests in air were carried out with thermogravimetric analysis up to 1500 °C and in a bottom up furnace at 1600 °C. TaC-based materials generally possessed higher thermo-mechanical properties compared to HfC, but lower oxidation resistance. Properties of fiber-reinforced composites were compared to those of unreinforced ones.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Aluminum Alloys Composites Properties
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References (39)
Show source-provided references
1. Pierson · 2001
2. Transition metal carbides and nitrides
3. The refractory carbides
4. Sintering of metals, carbides, and oxides by hot pressing
5. Hot pressing of metallic carbides10.1179/pom.1966.9.17.002 ↗
6. S. Sholz, Some new aspects of hot pressing of refractories, in: P. Poppe (Ed.), Proceedings of a Symposium Held by the British Ceramic Research Association on Special Ceramics, 1962, Academic Press, New York, 1963, pp. 293–307.
7. Studies with the electron-beam microanalyzer on hot-pressed tantalum carbide having small addition of manganese and nickel
8. Hot pressing of tantalum carbide with and without sintering additives10.1111/j.1551-2916.2006.01416.x ↗
9. Densification and mechanical properties of TaC-based ceramics
10. Microstructure and properties of HfC and TaC-based ceramics obtained by ultrafine powder10.1016/j.jeurceramsoc.2010.10.036 ↗
11. Transmission electron microscopy of Hf- and Ta-carbides sintered with TaSi210.1016/j.jeurceramsoc.2011.07.003 ↗
12. Mechanical, thermal and oxidation properties of refractory hafnium and zirconium compounds10.1016/S0955-2219(99)00129-6 ↗
13. Designing for ultrahigh-temperature applications: the mechanical and thermal properties of HfB2, HfC, HfN, and αHf(N)10.1023/B:JMSC.0000041690.06117.34 ↗
14. High density pressureless sintered HfC-based composite
15. Pressureless sintering of hafnium carbide–silicon carbide ceramics10.1111/jace.12339 ↗
16. Densification and mechanical behavior of HfC and HfB2 fabricated by spark plasma sintering
17. Spark plasma sintering of tantalum carbide10.1016/j.scriptamat.2010.06.006 ↗
18. Spark plasma sintered tantalum carbide-carbon nanotube: effect of pressure, carbon nanotube length and dispersion technique on microstructure and mechanical properties10.1016/j.msea.2010.12.017 ↗
19. Spark plasma sintering of TaC–HfC UHTC via disilicides sintering aids10.1016/j.jeurceramsoc.2013.01.017 ↗
20. Microstructure and mechanical properties of the spark plasma sintered TaC/SiC composites: effects of sintering temperatures10.1016/j.jeurceramsoc.2012.04.042 ↗
21. Sintering behavior, microstructure, and mechanical properties: a comparison among pressureless sintered ultra-refractory carbides10.1155/2010/835018 ↗
22. Synthesis, microstructural characterization and mechanical property evaluation of vacuum plasma sprayed tantalum carbide10.1111/j.1551-2916.2005.00899.x ↗
23. Elastic properties of tantalum carbide10.1016/j.ssc.2005.01.036 ↗
24. D.R. Lide, CRC Handbook of Chemistry and Physics, 74th edition, 1993–1994.
25. Thermal stability of refractory carbide/boride composites10.1016/S0254-0584(01)00486-2 ↗
26. Pressureless sintering of Ta0.8Hf0.2C UHTC in the presence of MoSi210.1016/j.ceramint.2012.08.050 ↗
27. Oxidation-based materials selection for 2000°C+ hypersonic aerosurfaces: theoretical consideration and historical experience10.1023/B:JMSC.0000041686.21788.77 ↗
28. Arc-jet testing on HfB2 and HfC-based ultra-high temperature ceramic material10.1016/j.jeurceramsoc.2007.11.021 ↗
29. NASA Phase II Final Report, Oxidation Resistant HfC–TaC Rocket Thruster for High Performance Propellants, NAS3-27272, 1999.
30. Fracture toughness calculation from maximum load in four point bend tests of chevron notch specimens10.1007/BF00013393 ↗
31. Processing, mechanical properties and oxidation behavior of TaC and HfC composites containing 15vol% TaSi2 or MoSi210.1557/jmr.2009.0232 ↗
32. C.K. Jun, P.T.B. Shaffer, Thermal expansion of niobium carbide, hafnium carbide and tantalum carbide at high temperatures, J. Less Common Met., Elsevier Sequoia S.A., Lausanne – Printed in The Netherlands, 323, Short Communication, Research and Development Division, The Carborundum Company, Niagara Falls, N. Y. 14302 (U.S.A.) (received December 19th, 1970).10.1016/0022-5088(71)90113-5 ↗
33. R.S. Roth, J.L. Waring, Diagram 4448: Ta2O5–SiO2, in: Phase Diagrams for Ceramists, 1970.
34. High temperature oxidation of Zr- and Hf-carbides: influence of matrix and sintering additive10.1016/j.jeurceramsoc.2013.05.022 ↗
35. Microstructure and toughening mechanisms in spark plasma sintered ZrB2 ceramics reinforced by SiC whiskers or SiC chopped fibers10.1111/j.1551-2916.2010.03730.x ↗
36. Toughening of a particulate-reinforced ceramic-matrix composite by thermal residual stress10.1111/j.1151-2916.1990.tb05209.x ↗
37. The interaction of a crack front with a second-phase dispersion10.1080/14786437008221068 ↗
38. Microstructure and mechanical properties of the spark plasma sintered TaC/SiC composites10.1016/j.msea.2011.09.079 ↗
39. Pressureless sintering of hafnium carbide–silicon carbide ceramics10.1111/jace.12339 ↗