摘要
本文建立了晶体线膨胀系数与化学键参数的经验关系:α=A(RN)/Zexp(Bfi)(其中 A、B 为常数,R 为键长,N 为配位数,Z 为电价,f_i 为离子性)。运用于碱金属卤化物、碱土金属硫族化合物的计算结果与实测值相一致;运用于其它二元晶体也得到合理的结果。另外对热膨胀其它影响因素也作了讨论。
In this paper,the empirical relation of the coefficients of thethermal expansion and the bond parameters has been established.α=A(RN)/Zexp(Bf_i)Where A and B are constants,R denotes bondlength,N is ligand numberZ is valence number,f_i represents ionicity.It was applied to a number ofthe crystals and calculated results are agree with the experimental values.
出处
《人工晶体学报》
EI
CAS
CSCD
1992年第4期325-328,共4页
Journal of Synthetic Crystals
关键词
热膨胀
化学键
晶体
thermal expansion
chemical bond
empirical relation
