摘要
在利用铝型材厂污泥合成的Al2TiO5中添加少量ZrO2矿化剂,ZrO2矿化剂与Al2TiO5形成置换固溶体,能抑制Al2TiO5的分解,增加Al2TiO5含量和提高Al2TiO5的热稳定性。采用XRD和SEM表征试样的晶相结构和显微结构;用Rietveld Quantification法确定各试样中各晶相含量;测试各试样的性能。结构与性能分析结果确定较佳ZrO2矿化剂添加量为2%,对应的抗折强度为35.32MPa,体密度为2.86g/cm3,气孔率为23.0%,吸水率为8.1%,热震后抗折强度保持率为84.2%。
By adding small amount of ZrO2 mineralizer into Al2TiO5 which synthesized from waste aluminum slag, it can form substitutional solution with Al2TiO5 and thus suppress its decomposing and enhance its thermal stability. XRD and SEM were used to characterize the crystalline phases and microstructures. Rietveld Quantification software was used to calculate the content of each phase. The performance of each sample were also tested. The results show that the best content for ZrO2 added is 2%, the corresponding bulk density is 2.86 g/cm^3, porosity is 23.0%, water absortion is 8.1% and bending strength stability after thermal shock is 84.2%.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2008年第5期1028-1031,共4页
Bulletin of the Chinese Ceramic Society
