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BaHfO3：Ce粉体活化能对烧结透光性影响

史树君 ,  马伟民 ,  马雷 ,  孙杨 ,  李晓龙 ,  韩锋 ,  管仁国

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引用本文: 史树君, 马伟民, 马雷, 孙杨, 李晓龙, 韩锋, 管仁国. BaHfO3：Ce粉体活化能对烧结透光性影响[J]. 无机化学学报, 2014, 30(4): 885-894. doi: 10.11862/CJIC.2014.155 shu
Citation:  SHI Shu-Jun, MA Wei-Min, MA Lei, SUN Yang, LI Xiao-Long, HAN Feng, GUAN Ren-Guo. Effect of BaHfO3：Ce Powders Activation Energy on Sintering Transparency[J]. Chinese Journal of Inorganic Chemistry, 2014, 30(4): 885-894. doi: 10.11862/CJIC.2014.155 shu

BaHfO3：Ce粉体活化能对烧结透光性影响

    通讯作者: 马伟民 maweimin56@163.com
  • 基金项目:

    沈阳市先进陶瓷制备技术及应用重点实验室建设项目资助(No.F12-259-1-00)。 (No.F12-259-1-00)

摘要: 用正、反向共沉淀法制备了BaHfO3：Ce粒子；用XRD、TG-DTA、SEM等测试手段对样品的物相、形貌及发光性能进行了表征；在不同升温速率条件下研究了粒子合成动力学。结果表明：由正向和反向沉淀法得到的前驱体物相变化分3个阶段,用Doyle-Ozawa和Kissinger法分别计算了各阶段的表观活化能,其平均值分别为83.41、61.70、262.11kJ·mol-1和81.70、42.86、253.44kJ·mol-1,计算正反向沉淀法样品的晶粒生长活化能分别为27.36kJ·mol-1和23.07kJ·mol-1；反向法的样品分别在530nm波长下的激发光谱和399nm波长的发射光谱的相对发光强度优于正向法,在2073K真空烧结保温3h获得具有一定透光性的BaHfO3：Ce透明陶瓷。

English

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  • 收稿日期:  2013-10-17
  • 网络出版日期:  2013-11-20
通讯作者: 陈斌, bchen63@163.com
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