【摘要】 设计并制备两种析晶性能良好的R2O-CaO-MgO-Al2O3-SiO2系玻璃核前体;将石英粉、窗玻璃粉、石材粉按不同比例混合并分别添加不同比例的玻璃核前体,制成混合粉体。研究纯的玻璃核前体与混合粉体的析晶特性差异,探讨热处理时粉体之间的成分交换对玻璃核前体析晶特性的影响。结果表明,在组分合理的低铝无机粉体中,加入一定量核前玻璃体,经高温处理,核前玻璃体析晶形成新晶相,可以起到强化陶瓷坯的作用。更多还原

【Abstract】 Two kinds of R 2 O-CaO-MgO-Al 2 O 3-SiO 2 system glass-core precursor were prepared,and powders were produced by mixing glass-core precursor,quartz,cullet and stone powder in different proportions.Crystallization properties of the pure glass-core precursor and mixed powders were studied.Surface diffusion of powders would be incurred by heat treatment,and the influence of the component exchange on the crystallization characteristics of glass-core precursor was investigated.The results showed: low aluminum ceramic body could be strengthened by new crystalline phase from heated powders mixed with glass-core precursor and other components.更多还原