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High-temperature mechanical and thermal properties of Ca1-xSrxZrO3 solid solutions
Yang, Lan; Liu, Yuchen; Zhang, Wei; Zhou, Guohong; Jiang, Danyu; Chen, Hongfei; Yang, Guang; Nian, Hongqiang; Liu, Bin
2019-12-31
Source PublicationJOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
SubtypeArticle; Early Access
AbstractPerovskite oxides are promising thermal barrier coatings (TBCs) materials but their thermophysical properties still need to be further improved before commercial applications. In this work, mechanical/thermal properties of calcium-strontium zirconate solid solutions (Ca1-xSrxZrO3) are investigated. Comparing to the end-compounds CaZrO3 and SrZrO3, the solid solutions achieve the enhanced thermal expansion coefficient, decreased thermal conductivity as well as good high-temperature mechanical properties. The experimental thermal conductivities of Ca1-xSrxZrO3 (x = 0.2, 0.4, 0.6, 0.8) are in the range of 1.76-1.94 W center dot(m center dot K)(-1) at 1073 K, being lower than that of the yttria-stabilized zirconia (YSZ). At the same time, their thermal expansion coefficients (10.75 x 10(-6)-11.23 x 10(-6)/K at 1473 K) are comparable to that of YSZ. Moreover, the Young's moduli of Ca0.8Sr0.2ZrO3, Ca0.6Sr0.4ZrO3, Ca0.4Sr0.6ZrO3, and Ca0.2Sr0.8ZrO3 at 1473 K are 70.7%, 69.4%, 68.8%, and 71.1% of the corresponding values at room temperature, respectively. The good high-temperature mechanical and thermal properties ensure the potential applications of Ca1-xSrxZrO3 solid solutions as high-temperature thermal insulation materials including TBCs.
Keywordmechanical thermal properties perovskite solid solution thermal barrier coatings
DOI10.1111/jace.16860
WOS KeywordTHERMOPHYSICAL PROPERTIES ; BARRIER COATINGS ; STRONTIUM ZIRCONATE ; YOUNGS MODULUS ; CONDUCTIVITY ; CANDIDATE ; CERAMICS ; CERATE ; GDPO4 ; ZR
Language英语
WOS Research AreaMaterials Science
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27517
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Yang, Lan,Liu, Yuchen,Zhang, Wei,et al. High-temperature mechanical and thermal properties of Ca1-xSrxZrO3 solid solutions[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2019.
APA Yang, Lan.,Liu, Yuchen.,Zhang, Wei.,Zhou, Guohong.,Jiang, Danyu.,...&Liu, Bin.(2019).High-temperature mechanical and thermal properties of Ca1-xSrxZrO3 solid solutions.JOURNAL OF THE AMERICAN CERAMIC SOCIETY.
MLA Yang, Lan,et al."High-temperature mechanical and thermal properties of Ca1-xSrxZrO3 solid solutions".JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2019).
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