电熔镁锆合成料中SiO_2的赋存形态及分布特征

Study on the Distribution Characteristics of SiO_2 in the Fused MgO-ZrO_2 Composites

研究了以轻烧氧化镁和锆英石为原料 ,以电熔法合成的 Mg O-Zr O2 复相材料中 Si O2 的赋存形态。结果表明 :系统中占 (3 0～ 40 ) %的 Si O2 成分与 Mg O反应形成镁橄榄石相 (M2 S) ,余下的 Si O2 成分将进入玻璃相 ,且玻璃相的组成与钙镁橄榄石的理论组成大致相当。

This paper studies the distribution characteristics of SiO 2 in the MgO ZrO 2 composites synthesized through light fired magnesia and zircon by electric fusing process.The results indicate that,while (30～40)% SiO 2 in the system is formed to forsterite(M 2S),the remaindering SiO 2 composition will get into glass phase,and the compositions of glass phase are very close to that of monticellite (CMS).