青岛大学学报（自然科学版）2011，Vol.24Issue(4)：45-50,6.DOI:10.3969/j.issn.1006-1037.2011.11.010
GdAlO3粉体的溶胶凝胶法制备工艺及烧结行为研究
Investigation of Sol-gel Preparation and Sintering Behavior for GdAlO3Powder
摘要
Abstract
Pure phase gadolinium aluminum (GdAlO3) powder synthesized with the solgel method was obtained at 1 000 ℃ with the holding time of 2 hours.The sintering behaviors of GdAlO3 green compacts were studied through the sintering curves,it was found that the GdAlOs sample began to shrink with the 957 ℃ and the maximum shrinkage was 16.17％ at 1600℃.The average linear expansion coefficient of GdAlO3 green compact is 9.38×10-6/℃ in the range of 200～1 000℃.On the basis of the sintering curve,the sintering activation energy for GdAlO3calculated according to Arrhenius theory was about 22.4kJ/mol,which was lower than that of alumina,indicating that it was useful for the sintering of alumina.关键词
铝酸钆/溶胶凝胶法/烧结行为/烧结激活能Key words
GdAlO3/sol-gel/sintering behavior/sintering activation energy分类
化学化工引用本文复制引用
张展,陈沙鸥,邵渭泉,魏妙,李达,王峰..GdAlO3粉体的溶胶凝胶法制备工艺及烧结行为研究[J].青岛大学学报（自然科学版）,2011,24(4):45-50,6.基金项目
Natural science foundation of Shandong Province(2009ZRA02012) （2009ZRA02012）
