摘要
以硅酸铝和硅酸钠为原料制备出玻璃料,利用高温高压法确定了白色硬玉质翡翠的最佳合成条件,并通过XRD、FTIR和SEM等方法对样品进行表征。结果表明:5.0 GPa、1450℃条件下合成样品的主要成分为NaAlSi_2O_6,分子结构为硅氧四面体结构,具有柱状纤维编织形貌,与天然硬玉结构相同。我们的研究对于揭示天然翡翠的形成机制提供有力的参考。
With Al2（SiO3）3 and Na2SiO3·9H2O as raw materials,the NaAlSi2O6 jadeite was synthesized by the method of high-pressure and high-temperature（ HPHT）. Amorphous glass materials are entirely converted to crystalline NaAlSi2O6 jadeite at 5. 0 GPa and 1450 ℃. All the experimental results reveal that the properties of synthetic NaAlSi2O6 resemble the natural jadeite very much by XRD,FTIR and SEM. The research indicates that it will be help for deep understanding on the origin of natural jadeite.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2016年第4期1106-1109,1114,共5页
Journal of Synthetic Crystals
基金
博士启动基金项目(MNUB201509)
黔科合LH[2015]7232
关键词
玻璃料
高温高压
结构性质
微观形貌
amorphous glass
HPHT
structural property
microstructure
