摘要
本文利用差热与热重分析研究了软玉的热稳定性。通过红外光谱测定,系统地阐述了软玉的红外热谱特征,同时结合X射线衍射深入地探讨了软玉的热转变机制,认为软玉热学性质的变化是其各组成矿物热学性质变化的复合,而最终的热转变产物是一种成分和结构都类似于透辉石的Ca-Mg辉石。
This paper deals with the thermal stability of nephrites in terms of DTA and TGA. In addition, their characteristic thermal IR spectra are systematically described with special reference to their IR spectra. Meanwhile, the mechanisms of thermal transformation of nephrites are investigated in detail by X-ray diffraction analyses. The results show that changes in thermal properties of nephrites are a complex outcome of changes in thermal properties of component minerals, and that the final thermal transformation product is a kind of pyroxene which is similar to diopside both in composition and in structure.
出处
《矿物学报》
CAS
CSCD
北大核心
1991年第3期251-257,共7页
Acta Mineralogica Sinica
关键词
软玉
热转变
差热分析
红外光谱
DTA
IR spectrum
X-ray diffraction
thermal transformation
tremolite
nephrite
