Abstract
The processing and properties of HfB2-20 vol%SiC ultra high temperature ceramics were examined. Dense billets were fabricated by hot-pressing raw powders in a graphite element furnace for 1 h at 2200°C. Specimens were then tested for hardness, mechanical strength, thermal properties and oxidation resistance in a simulated re-entry environment. Thermal conductivity of the current materials was found to be less than previous work had determined while the strength was greater. Oxidation testing of two flat-face models was conducted, at two conditions, for two 10-min durations each. It was concluded that passive oxidation of SiC plays a role in determining the steady-state surface temperatures below 1700°C. Above 1700°C, temperatures are controlled by the properties of a thick HfO2 layer and active oxidation of the SiC phase.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
L. KAUFMAN and E. V. CLOUGHERTY, “Investigation of Boride Compounds for High Temperature Applications,” RTD-TRD-N69-73497, Part XXXVII, ManLabs Inc., Cambridge, MA, Dec. 1963.
Idem., “Investigation of Boride Compounds for Very High Temperature Applications,” RTD-TRD-N63-4096, Part III, ManLabs Inc., Cambridge, MA, March 1966.
E. V. CLOUGHERTY, D. KALISH and E. T. PETERS, “Research and Development of Refractory Oxidaton Resistant Diborides,” AFML-TR-68-190 (1968).
A. K. KURIAKOSE and J. L. MARGRAVE, J. Electrochem. Soc. (1964) 827.
J. B. BERKOWITZ-MATTUCK, ibid. 113 (1966) 908.
L. KAUFMAN, E. V. CLOUGHERTY and J. B. BERKOWITZ-MATTUCK, Trans. TMS-AIME 239 (1967) 458.
E. V. CLOUGHERTY, R. L. POBER and L. KAUFMAN, ibid. 242 (1968) 1077.
M. M. OPEKA, I. G. TALMY, E. J. WUCHINA, J. A. ZAYKOSKI and S. J. CAUSEY, J. Europ. Ceram. Soc. 19 (1999) 2405.
S. LEVINE, E. OPILA, M. HALBIG, J. KISER, M. SINGH and J. SALEM, ibid. 22 (2002) 2757.
F. MONTEVERDE, A. BELLOSI and S. GUICCIARDI, ibid. 22 (2002) 279.
D. M. SMITH, E. J. FELDERMAN, F. L. SHOPE and J. A. BALBONI,“Arc Heated Facilities,” Advanced Hypersonic Test Facilities, edited by F. Lu and D. Marren (AIAA Progress Series (2002) Vol. 198.
P. KOLODZIEJ, J. SALUTE and D. L. KEESE, “First Flight Demonstration of a Sharp Ultra-High Temperature Ceramic Nosetip,” NASA TM-112215, Dec. 1997.
R. PERKINS, L. KAUFMAN and H. NESOR, “Stability Characterization of Refractory Materials Under High Velocity Atmospheric Flight Conditions,” Part III, Vol II, ManLabs Inc., Cambridge, MA, 1969.
J. B. HEDRICK, “Zirconium and Hafnium,” U.S. Geological Survey Minerals Yearbook (1999) p. 86.2.
R. H. LAMOREAUX, D. L. HILDENBRAND and L. BREWER, J. Phys. Chem. Ref. Data 16 (1987) 419.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Gasch, M., Ellerby, D., Irby, E. et al. Processing, properties and arc jet oxidation of hafnium diboride/silicon carbide ultra high temperature ceramics. Journal of Materials Science 39, 5925–5937 (2004). https://doi.org/10.1023/B:JMSC.0000041689.90456.af
Issue Date:
DOI: https://doi.org/10.1023/B:JMSC.0000041689.90456.af