单斜辉石固溶体CaMgSi2O6—N4AlSi2O6的合成机理研究

MECHANISM OF SINTERING CLINOPYROXENE SOLID SOLUTION CaMgSi 2O 6 NaAlSi 2O 6

研究了压力和温度对单斜辉石的结晶和晶粒纤维编织的影响。在较低的晶化温度下压力对单斜辉石结晶的影响很明显，这种影响随温度升高而减弱。然而，压力对单斜辉石晶粒纤维编织的影响正相反，在相同的高温下，较高压力下晶化的单斜辉石晶粒纤维比较低压力下得到的晶粒纤维粗壮，而且编织紧密。

The effects of variation of the temperature and pressure on the nucleation and crystal growth of penetrating fibrous grains of sintered polycry stalline CaMgSi 2O 6(Di) NaAlSi 2O 6(Jd) have been investigated.A more distinct effect of the pressure appears on the crystallization of DiJd at the lower temperature than at the higher temperature.On the contrary,the pressure has a much more effect on the growth and texture of penetrating fibrous grains of DiJd at the gigher temperature than at the lower temperature.The grains of DiJd synthesized under the higher pressure are stronger,and more ordered and compact than that synthesized under the lower pressure.The critical temperatures of nucleation and growth of DiJd are increased with the elevated pressure.And the maximum rates of nucleation and growth are also increased and moved toward the high temperature with the elevated pressure