Science. 1964 Jul 31;145(3631):487-9. doi: 10.1126/science.145.3631.487.
Magnesium silicide (Mg3Si) undergoes a transformation from a cubic (fluorite) type lattice to a hexagonal lattice at pressures above about 25 kilobars and temperatures above 900 degrees C. There is an increase of density of about 15 percent associated with this structure change. Both the parent and product substances are semiconductors, but of different resistivities. The high pressure phase may be recovered and is indefinitely metastable at normal ambient conditions.
硅化镁(Mg3Si)在压力高于约 25 千巴和温度高于 900°C 时,经历从立方(萤石)型晶格到六方晶格的转变。与这种结构变化相关的密度增加约为 15%。母体和产物物质都是半导体,但电阻率不同。高压相可以回收,在正常环境条件下是无限亚稳的。