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Effect of TiO2 addition on sintering of alumina-rich MgAl2O4
Author(s): 
Pages: 56-58
Year: Issue:  1
Journal: REFRACTORIES

Keyword:  富铝尖晶石烧结性能TiO2固溶体;
Abstract: 以α-Al2O3、分析纯的MgO及分析纯的TiO2为原料,研究了在1400℃、1500℃、1600℃保温3 h下,TiO2加入量(分别为0、1%、2%、4%)对Al2O3与MgO物质的量比为2:1的富铝尖晶石烧结性能的影响,并利用XRD进行物相组成分析,利用SEM和EDAX进行显微结构分析.结果表明:由于TiO2与MgAl2O4的固溶作用,加入TiO2可显著改善富铝尖晶石的烧结性能;随着TiO2加入量的增加,试样的体积密度增加,显气孔率降低,特别是在1600℃烧结后的试样尤为显著.
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