添加剂对溶胶-凝胶-微波加热法合成ZrB_2-SiC复合粉体物相组成的影响
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- 论文作者：曹迎楠 ; 黄仲 ; 张海军 ; 张少伟
- 年：2015
- 作者机构：武汉科技大学省部共建耐火材料与冶金国家重点实验室;中钢集团洛阳耐火材料研究院有限公司先进耐火材料国家重点实验室;
- 论文关键词：添加剂 ; ZrB_2-SiC复合粉 ; 溶胶-凝胶法 ; 微波加热
- 会议召开时间：2015-10-25
- 会议录名称：2015耐火材料综合学术年会（第十三届全国不定形耐火材料学术会议和2015耐火原料学术交流会）论文集（4）
- 语种：中文
- 分类号：TB383.3
- 学会代码：ZGJS
- 会议名称：2015耐火材料综合学术年会暨第十三届全国不定形耐火材料学术会议和2015耐火原料学术交流会
- 会议地点：中国山东青岛
- 主办单位：中国金属学会耐火材料分会、中国金属学会耐火材料分会不定形耐火材料技术委员会、耐火材料杂志社、中钢集团洛阳耐火材料研究院有限公司、武汉科技大学省部共建耐火材料与冶金国家重点实验室
- 学会名称：中国金属学会
- 页数：4
- 文件大小：324k
- 原文格式：O
- 会议级别：全国
摘要
为了进一步降低ZrB_2-SiC复合粉体的合成温度,以氧氯化锆(ZrClO_2·8H_2O)、硼酸(H_3BO_3)、正硅酸乙酯(TEOS)和葡萄糖(C_6H_(12)O_6)为主要原料,采用溶胶-凝胶结合微波加热的方法在1 200℃保温3 h合成ZrB_2-SiC复合粉体,研究了添加剂种类(TiO_2、Fe2O_3、Cr_2O_3、Y_2O_3分别单独添加或两两复合添加)和加入量对合成ZrB_2-SiC复合粉体物相组成的影响。结果表明:TiO_2、Fe2O_3、Cr_2O_3及复合添加剂的加入均可以促进ZrB_2在较低温度下的合成,但只有Fe_2O_3及含Fe_2O_3复合添加剂能促进SiC在较低温度下的合成。Y_2O_3的加入对复合粉体的合成无明显的促进作用。复合添加剂中以TiO2/Fe2O_3的促进效果最为明显。
引文
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[3]Che X P,Zhu S Z,Yang L J,et al.Solution-based synthesis of ultrafine ZrB_2 powders and ZrB_2-SiC composite powders[J].Advanced Materials Research,2010,105-106:213-217.
[4]施浩良,肖汉宁,高朋召,等.碳热还原法制备超细ZrB_2/SiC复合陶瓷粉[J].机械工程材料,2011,35(9):93-97.
[5]Jung E Y.Kim J H,Jung S H,et al.Synthesis of ZrB_2 powders by carbothermal and borothermal reduction[J].Journal of Alloys and Compounds,2012,538(5):164-168.
[6]Zhao B,Zhang Y,Li J,et al.Morphology and mechanism study for the synthesis of ZrB_2-SiC powders by different methods[J].Journal of Solid State Chemistry,2013,207(6):1-5.
[7]Zhang H,Yan Y J,Huang Z R,et al.Pressureless heating of ZrB_2-SiC ceramics incorporating sol-gel synthesized ultrafine ceramic powders[J].Key Engineering Materials,2010,434-435:193-196.
[8]Zhang S,Khangkhamano M,Zhang H,et al.Novel Synthesis of ZrB_2Powder Via Molten-Salt-Mediated Magnesiothermic Reduction[J].Journal of the American Ceramic Society,2014,97(6):1686-1688.
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