Hydrostatic compression of ilmenite phase of ZnSiO3 and MgGeO3
Hydrostatic compression of ilmenite phase of ZnSiO3 and MgGeO3
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ZnSiO3 和 MgGeO3 钛铁矿相的静水压缩
DOI：
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发表时间：
1977
期刊：
影响因子：
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通讯作者：
S. Akimoto
中科院分区：
文献类型：
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作者：
Y. Sato;E. Ito;S. Akimoto
在静水条件下，使用X射线衍射法对ZnSiO 3和MgGeO 3的钛铁矿相进行了准确的晶胞参数测量。ZnSiO 3的晶胞参数线性变化为1−a/a0=（1.06±0.04）×10−4P（kbar）和1−c/c 0 =（2.11±0.04）×10−4P; MgGeO 3的晶胞参数线性变化为1−a/a0=（1.37±0.03）×10−4P和1−c/c 0 =（2.05±0.04）×10−4P。使用一阶Birch-Murnaghan方程的最小二乘计算分别给出ZnSiO 3和MgGeO 3的KT=2.16±0.02 Mbar和KT=1.87±0.02 Mbar。弹性系统学假设KTVm=常数给出了预测值KT=2.14 Mbar的钛铁矿相的MgSiO 3。
Accurate measurements of cell parameters were performed on the ilmenite phases of ZnSiO3 and MgGeO3 using an X-ray diffraction method under hydrostatic conditions. The linear changes in cell parameter are represented by 1−a/a0=(1.06±0.04)×10−4P(kbar) and 1−c/c0=(2.11±0.04)×10−4P for ZnSiO3, and 1−a/a0=(1.37±0.03)×10−4P and 1−c/c0=(2.05±0.04)×10−4P for MgGeO3. A least-squares calculation using the first-order Birch-Murnaghan equation gives KT=2.16±0.02 Mbar and KT=1.87±0.02 Mbar for ZnSiO3 and MgGeO3, respectively. Elastic systematics assuming KTVm=constant give a predicted value KT=2.14 Mbar for the ilmenite phase of MgSiO3.