Elastic and thermal properties of hexagonal perovskites
Elastic and thermal properties of hexagonal perovskites
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DOI：
10.1016/j.commatsci.2016.05.015
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发表时间：
2016-09
影响因子：
3.3
通讯作者：
A. Chernatynskiy;Anesia D. Auguste;B. Steele;J. Phillpot;R. Grimes;S. Phillpot
中科院分区：
文献类型：
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作者：
A. Chernatynskiy;Anesia D. Auguste;B. Steele;J. Phillpot;R. Grimes;S. Phillpot
我们系统地研究了组成为A3+B3+ o3的P63cm六方钙钛矿在热障涂层中的潜在应用。尽管结构具有各向异性，但弹性常数实质上是各向同性的。然而，热膨胀是强各向异性的，而导热系数是相对各向同性的。六方钙钛矿的热导率比正交钙钛矿大得多。
We systematically investigate the mechanical and thermal properties of the P63cm hexagonal perovskites with composition A3+B3+O3for potential use in thermal barrier coatings. In spite of the structural anisotropy, the elastic constants are essentially isotropic. The thermal expansion is, however, strongly anisotropic, while the thermal conductivity is relatively isotropic. The thermal conductivities of the hexagonal perovskites are much larger than those of the orthorhombic perovskites.