热处理对油页岩渣微晶玻璃结构的影响Effects of heat treatment on structure of glass-ceramics prepared with oil shale residue
冯宗玉,李勇,杨合,薛向欣
摘要(Abstract):
以油页岩渣为主要原料制备了微晶玻璃,采用DTA、XRD、SEM及FT-IR等测试手段,分析了核化温度和晶化温度对微晶玻璃微观结构的影响。结果表明:微晶玻璃的主晶相为钙铁透辉石,次晶相为钙长石;随着热处理温度的升高,晶体的规则程度增加,晶体尺寸和结晶度均呈现先增加后减小,最后回升的趋势;在最佳热处理(850℃×100min+980℃×80min)条件下,微晶玻璃形成纤维状细晶结构,红外吸收带发生最明显的分裂,显微硬度和抗压强度达到最大值。
关键词(KeyWords): 油页岩渣;微晶玻璃;核化温度;晶化温度
基金项目(Foundation): 国家自然科学基金资助项目(50674024)
作者(Author): 冯宗玉,李勇,杨合,薛向欣
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