摘要
以页岩飞灰为主要原料,通过不同热处理过程制备了微晶玻璃。利用XRD和SEM测试手段,分析了核化时间和晶化时间对微晶玻璃晶相特征的影响。结果表明,晶化时间的增加使微晶玻璃主晶相钙长石含量降低,次晶相钙硅石含量逐渐增加;核化时间的增加有利于球状晶粒尺寸增大,晶化时间的延长使晶粒聚集成团,排列紧密。微晶玻璃具有较高的抗压强度和良好的耐腐蚀性,可作为天然石料的替代品和装饰材料。
Glass ceramics was produced from oil shale fly ash as primary material by different treatments.The effects of nucleation time and crystallization time on the characteristics of glass ceramics were investigated by means of XRD and SEM.The results show that the content of the main crystalline phase anorthite decreased and the content of wollastonite of increased in nucleated glass with the crystallization time increased.With the increase of nucleation time,the spherical crystals in glass ceramics grew bigger.A large number of crystals are aggregated in glass ceramics when the crystallization time increased.Due to high compressive strength and good corrosion resistance,glass ceramics can be used as a substitute of natural stone and decorative materials.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2010年第7期1-4,共4页
Transactions of Materials and Heat Treatment
基金
国家“863”计划资助项目(2007AA05Z333)
关键词
页岩飞灰
微晶玻璃
核化
晶化
oil shale fly ash
glass ceramics
nucleation
crystallization
