A pressure-thermodynamic study of solid interfaces (grain boundaries) has been conducted. The influence of a high quasi-hydrostatic pressure (-l Gpa) on interfacial segregation of Bi in ZnO has Been characterized. At ambient pressure (l atm) and sub-eutectic temperatures, grain boundaries in Bi-saturated ZnO exhibit near-monolayer levels of Bi segregation characterized by a segregation enthalpy Of -0.67 eV/atom. Under -l Gpa pressure, however, the segregation is nearly completely suppressed.
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机译：对固体界面（晶界）进行了压力热力学研究。表征了高准静水压力（-1 Gpa）对ZnO中Bi的界面偏析的影响。在环境压力（l atm）和亚共晶温度下，Bi饱和ZnO中的晶界表现出近单层的Bi偏析，其特征为-0.67 eV /原子的偏析焓。但是，在-1 Gpa压力下，偏析几乎被完全抑制了。
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