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jing gao ya xia sio2 de yi ge xin tai gao mi du shi ying bo li de fa xian
Author(s): 
Pages: 1641-1643
Year: Issue:  21
Journal: Chinese Science Bulletin

Keyword:  石英玻璃静高压熔融石英冲击压力高压相高密度超石英石英相变折光率焦石英;
Abstract: <正> 多年来对陨石坑的不断深入研究,陆续发现冲击压力下石英的高压相——柯石英、超石英及石英的非晶质相——冲击熔融石英和击变石英玻璃。然而冲击压力下所形成的这些石英玻璃,其折光率和密度均与熔融石英、焦石英的比较相近。静高压下是否有石英玻璃的生成呢?我们在使用石英相变法标定6-6Ⅱ级顶砧型超高压腔的压力实验时,在98kb和约300℃的条
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