Oxide materials with low thermal conductivity
Oxide materials with low thermal conductivity
复制标题
DOI：
10.1111/j.1551-2916.2006.01410.x
复制
发表时间：
2007-02
影响因子：
3.9
通讯作者：
M. Winter;D. Clarke
中科院分区：
文献类型：
--
作者：
M. Winter;D. Clarke
描述了一种启发式方法来识别具有低于室温的、与温度无关的热导率的候选材料。在此基础上，发现了一系列热导率低于8mol%氧化钇稳定的氧化锆和熔融石英的化合物，其中Zr3Y4O12 δ相、钨青铜和La2Mo2O9相具有低热导率应用的潜力。由于每一种都可以与其他高原子质量离子表现出广泛的置换固溶体，因此有前景将发现更多具有低热导率的化合物。
A heuristic approach to identifying candidate materials with low, temperature-independent thermal conductivity above room temperature is described. On the basis of this approach, a number of compounds with thermal conductivities lower than that of 8 mol% yttria-stabilized zirconia and fused silica have been found. Three compounds, in particular, the Zr 3 Y 4 O 12 delta phase, the tungsten bronzes, and the La 2 Mo 2 O 9 phase, exhibit potential for low thermal conductivity applications. As each can exhibit extensive substitutional solid solution with other, high atomic mass ions, there is the prospect that many more compounds with low thermal conductivity will be discovered.