Effect of pressure on the crystal structure of hydrous wadsleyite, Mg1.75SiH0.5O4
Effect of pressure on the crystal structure of hydrous wadsleyite, Mg1.75SiH0.5O4
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压力对水合硅锰矿 Mg1.75SiH0.5O4 晶体结构的影响
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
T. Inoue
中科院分区：
文献类型：
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作者：
Y. Kudoh;T. Inoue
利用微型金刚石顶锤压力室，用四圈X射线单晶衍射法研究了压力对水合铁闪石晶体结构的影响。线性压缩系数和体积弹性系数分别为βa=1.6 6(10)、βb=1.75(15)、βc=2.75(14)(10-3/Gpa)和K0=15 3(9)Gpa(K0‘=4)。在3.7 GPA下的结构结果表明，当Mg3空位时氢原子可能位于其上的Mg306八面体的O1-O边长度对压力不敏感。
The effect of pressure on the crystal structure of hydrous wadsleyite has been investigated by means of single-crystal four-circle X-ray diffractometry using a miniature diamond-anvil pressure cell. The linear compressibilities and bulk modulus are βa=1.66(10), βb=1.75(15), βc=2.75(14) (10 -3 /GPa) and K 0 =153(9) GPa (K0'=4). The structural results at 3.7 GPa show that the O1-O edge lengths of the Mg306 octahedron, on which the hydrogen atoms are expected to be located when the Mg3 site is vacant, are insensitive to pressure.