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固熔体60%NaAlSi₂O₆-40%CaMgSi₂O₆在高温高压下的相图的研究

THE PHASE DIAGRAM OF SOLID SOLUTION 60%NaAlSi₂O₆- 40%CaMgSi₂O₆ AT HIGH TEMPERATURES AND HIGH PRESSURES

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【Author】 Zhao Tinghe, Yan Xuewei, Cui Suojing, Liu Lijun, Zhao Wei(Changchun Instetute of Applied Chemistry, Chinese Acodemy of Sciences, Changchun 130022, P. R. China)

【机构】中国科学院长春应用化学研究所；中国科学院长春应用化学研究所长春 130022；长春 130022；长春 130022；

【摘要】在1.0～5.0GPa、700～1750℃条件范围内,对固熔体0.6NaAlSi₂O₆-0.4CaMgSi₂O₆进行了研究,探讨了该固熔体在高温高压下的存在行为,研究了由非晶态玻璃向翡翠转化过程中γT作用的相图,得到的透辉石翡翠的晶胞参数为α=0.9439nm,b=0.8573nm,c=0.5233nm,β=107.28°和V=0.41702nm³。本实验中合成的宝石级翡翠为色泽温润,具有玻璃光泽,半透明的极富观赏性的透辉石翡翠。更多还原

【Abstract】 The solid solution, 60%NaAlSi2O6-40%CaMgSi2O6 was studied under 1.0-5. 0GPa, 700-1750℃ by using a cubic anvil press. A high-temperature and high-pressure phase diagram for this 60%NaAlSi2O6-40%CaMgSi2O6 solid solution was obtained. A translucent jewel(Jd0.6Di0.4) was obtained in our experiment, surface of which shines with a glorous green colour. The unit cell parameters of synthetic Jd0.6Di0.4:a= 0. 9539nm, 6 = 0. 8578mn, c = 0. 5233nm, β=107. 28°, and 7=0. 41702nm3.更多还原