Zero thermal expansion in a pure-form antiperovskite manganese nitride
Zero thermal expansion in a pure-form antiperovskite manganese nitride
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DOI：
10.1063/1.3110046
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发表时间：
2009-03
影响因子：
4
通讯作者：
K. Takenaka;H. Takagi
中科院分区：
文献类型：
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作者：
K. Takenaka;H. Takagi
使用反钙钛矿氮化锰制造纯净形式的零热膨胀材料。通过优化热处理和化学成分实现了各向同性的零热膨胀。目前的研究表明，热处理主要通过材料的氮含量影响热膨胀。所获得的材料在包括室温在内的宽温度范围内表现出|α|<0.5×10−6 K−1（α是线性热膨胀系数）的低膨胀。它们是许多工业领域所期望的可靠、机械坚硬且低成本的零热膨胀材料。
A zero thermal expansion material in a pure form is fabricated using an antiperovskite manganese nitride. The isotropic zero thermal expansion is achieved by optimizing the heat treatment and the chemical composition. The present study suggests that the heat treatment affects the thermal expansion mainly via the nitrogen content of the material. The obtained materials exhibit a low expansion of |α|<0.5×10−6 K−1 (α is the coefficient of linear thermal expansion) over a broad temperature range, which includes room temperature. They are desirable for many fields of industry as reliable, mechanically hard, and low-cost zero thermal expansion materials.