EQUATION OF STATE OF ALPHA -SI3N4
EQUATION OF STATE OF ALPHA -SI3N4
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DOI：
10.1103/physrevb.55.3456
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发表时间：
1997-02
影响因子：
3.7
通讯作者：
M. Kruger;J. Nguyen;Y. M. Li;W. A. Caldwell;M. Manghnani;R. Jeanloz
中科院分区：
文献类型：
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作者：
M. Kruger;J. Nguyen;Y. M. Li;W. A. Caldwell;M. Manghnani;R. Jeanloz
高压下的X射线衍射结果表明，α-Si 3 N4在295 K下静态压缩时至少在48 GPa下是亚稳态的，零压体积模量K 0= 228.5（±4）GPa，假定压力导数K 0| I H= 4。压缩几乎是各向同性的，但是c方向比a方向稍微不可压缩，与理论很好地一致。
X-ray diffraction at high pressures reveals that α-Si 3 N 4 is metastable to at least 48 GPa when compressed statically at 295 K, and yields a zero-pressure bulk modulus of K 0= 228.5 (±4) GPa, assuming a pressure derivative K 0| I H= 4. The compression is nearly isotropic, but with the c direction being slightly more incompressible than the a direction, in good agreement with theory.