Synthesis of ZrSiO4 and coesite in SiO2-ZrO2 system under high pressure

被引：5

作者：

Xue Yan-feng ^{[1
]}

Xu Da-peng ^{[1
]}

Mang Guang-qiang ^{[1
]}

Zhou Xian-feng ^{[1
]}

Ding Zhan-hui ^{[1
]}

Liu Xiao-mei ^{[1
]}

Su Wen-hui ^{[1
,2
,3
]}

机构：

[1] Jilin Univ, Coll Phys, Changchun 130012, Peoples R China

[2] Harbin Inst Technol, Ctr Condensed Matter Sci & Technol, Harbin 150001, Peoples R China

[3] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110015, Peoples R China

来源：

CHEMICAL RESEARCH IN CHINESE UNIVERSITIES | 2008年 / 24卷 / 02期

基金：

中国国家自然科学基金;

关键词：

ZrSiO4; coesite; high pressure synthesis; mechanical ball milling;

D O I：

10.1016/S1005-9040(08)60028-8

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

ZrSiO4 and coesite were obtained under high-pressure and high-temperature from the nano precursor of alpha-SiO2 and ZrO2. XRD and Raman measurements indicate that ZrSiO4 was formed at a temperature higher than 920 degrees C under a pressure of 3.6 GPa. As the pressure increased to 3.9 GPa, the ZrSiO4 formation temperature was reduced to 815 degrees C. The formation temperature for coesite was 990 degrees C under 3.9 GPa. The lower formation temperature for ZrSiO4, as compared to that for coesite, provided an experimental evidence that the coesite in the Earth's surface usually occurs as inclusions in ZrSiO4.

引用

页码：135 / 137

页数：3

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