期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 33, 期 15-16, 页码 3467-3472出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2013.06.009
关键词
Thermal expansion; Specific heat; Thermal diffusivity; Thermal conductivity; High temperature
资金
- 'Fundacion Ramon Areces, Spain'
- Centre for Advanced Structural Ceramics (CASC)
- DSTL, UK [DSTLX-1000015413]
- JAE-DOC program of CSIC, Spain
- FSE
Thermal properties of La2O3-doped ZrB2- and HfB2-based ultra high temperature ceramics (UHTCs) have been measured at temperatures from room temperature to 2000 degrees C and compared with SiC-doped ZrB2- and HfB2-based UHTCs and monolithic ZrB2 and HfB2. Thermal conductivities of La2O3-doped UHTCs remain constant around 55-60 W/mK from 1500 degrees C to 1900 degrees C while SiC-doped UHTCs showed a trend to decreasing values over this range. (C) 2013 Elsevier Ltd. All rights reserved.
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