人工晶体学报2012，Vol.41Issue(2)：496-501,6.
Al2O3对低品位菱镁矿与天然硅石合成制备镁橄榄石的影响
Effects of Alumina on Synthesis of Forsterite from Low-grade Magnesite and Natural Silica
摘要
Abstract
Forsterite material was synthesized using active magnesia prepared from low-grade magnesite and natural silica as raw materials, alumina as additive. The phases composition and microstructure of sintered samples were characterize by XRD and SEM. The cell parameters and volume of the forsterite phase were estimated by X'Pert plus software. The effect of alumina on composition, cell parameters, microstructure and properties of forsterite material at normal temperature was studied. In combination with the structure and properties of analysis results, the enstatite emerges in the forsterite prepared through reaction sintering at 1500 ℃ from active magnesia and the natural silica, is attributed to A12O3 as additive. The additive alumina results to the increasement of cell parameters and volume of the forsterite. The sintering of forsterite is promoted by alumina, the relative density and cold crush strength are increased with increasing alumina.关键词
Al2O3/镁橄榄石/低品位菱镁矿/天然硅石Key words
alumina/forsterite/low-grade magnesite/natural silica分类
化学化工引用本文复制引用
罗旭东,曲殿利,张国栋,王闯,钟鑫宇..Al2O3对低品位菱镁矿与天然硅石合成制备镁橄榄石的影响[J].人工晶体学报,2012,41(2):496-501,6.基金项目
辽宁省镁资源保护办公室资助项目(MZ005) （MZ005）
