废玻璃和粉煤灰制备微晶玻璃的快速烧结-晶化行为Rapid sinter-crystallization behavior of glass-ceramics from waste glass and fly ash
卢金山,彭长浩,邓莉萍,冯志军,李喜宝
摘要(Abstract):
以废玻璃、粉煤灰为主要原料,利用快速烧结-晶化法制备斜辉石-钙长石微晶玻璃。利用XRD和SEM研究了升温速率对微晶玻璃烧结-晶化行为和显微结构影响。结果表明,与10℃/min常规烧结相比,30℃/min以及烧结温度下直接置入烧结的烧结激活能显著降低,微晶玻璃体积密度更大、气孔孔径更小。快速升温时最佳烧结温度明显降低,且钙长石晶相出现择优取向生长,导致微晶玻璃抗弯强度增大,950℃下直接置入烧结的微晶玻璃抗弯强度达到最高值107 MPa。
关键词(KeyWords): 废玻璃;粉煤灰;微晶玻璃;烧结-晶化行为;抗弯强度
基金项目(Foundation): 江西省教育厅科研项目(GJJ11497);; 江西省研究生创新基金(YC10A111)
作者(Author): 卢金山,彭长浩,邓莉萍,冯志军,李喜宝
DOI: 10.13289/j.issn.1009-6264.2013.01.002
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