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对ＰｂＦ２晶体在生长过程中的失透以及晶体在加工和储运过程中发生的失透现象进行了研究,认为晶体在生长过程中的失透是由于晶体生长时氧进入ＰｂＦ２晶格中由八个氟原子所构成的六面体的中心位置,而晶体在加工和储运过程中的失透则是由于接触了水造成晶体表面部分ＰｂＦ２由立方相转变为斜方相小晶粒所致．
The devitrification of PbF2 crystal in the growth process and the devitrification phenomenon of the crystal during the process of processing and storage were studied. It is considered that the devitrification of the crystal in the growth process is caused by the oxygen entering the lattice of PbF2 crystal from the eight Fluorine atoms constitute the center of the hexahedron, while the crystal in the process of processing and storage of the devitrification is due to contact with water caused by crystal surface part of PbF2 from the cubic phase into a small phase due to the orthorhombic grains.