溶胶-凝胶法制备TiO<sub>2</sub>包覆cBN复合粉的工艺及性能

梁力行; 王海龙; 李剑; 胡碧涌; 邵刚; 许红亮; 卢红霞; 范冰冰; 张锐

doi:10.11973/jxgccl201809008

溶胶-凝胶法制备TiO₂包覆cBN复合粉的工艺及性能

1. 郑州大学材料科学与工程学院, 郑州 450001;
2. 郑州航空工业管理学院, 郑州 450015

基金项目:

河南省自然科学基金资助项目（162300410242）；郑州大学优秀青年教师发展基金资助项目（1421320044）

详细信息

作者简介:
梁力行(1992-),男,广西桂平人,硕士研究生

中图分类号: TB321
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- 文章访问数: 6
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出版历程
- 收稿日期: 2017-07-30
- 修回日期: 2018-08-13
- 刊出日期: 2018-09-19

Process and Property of TiO₂ Coating cBN Composite Powder Prepared by Sol-Gel Method

1. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China;
2. Zhengzhou University of Aeronautics, Zhengzhou 450015, China

摘要

摘要: 以无水乙醇和水为分散介质，钛酸丁酯为钛源，采用溶胶-凝胶法在立方氮化硼（cBN）颗粒表面包覆TiO₂制备cBN-TiO₂复合粉，研究了无水乙醇与钛酸丁酯物质的量比、cBN与钛酸丁酯物质的量比对包覆效果的影响，对制备工艺进行了优化，并分析了最优工艺下cBN-TiO₂复合粉的抗氧化性能。结果表明：当无水乙醇与钛酸丁酯的物质的量的比为10：1、cBN与钛酸丁酯的物质的量的比为1：1时，cBN颗粒表面均匀地包覆了一层致密的TiO₂，包覆效果最好；最优工艺下cBN-TiO₂复合粉的开始氧化温度为900℃，比包覆TiO₂前cBN微粉的提高了220℃。
- 立方氮化硼 /
- 溶胶-凝胶法 /
- 包覆 /
- 抗氧化性能
Abstract: A layer of TiO₂ was coated on the surface of cubic boron nitride (cBN) particles by sol-gel method with anhydrous ethanol and water as dispersion medium and with tetrabutyl titanate as titanium source, and then cBN-TiO₂ composite powders were obtained. The effects of the molar ratio of anhydrous ethanol to butyl titanate and the molar ratio of cBN to butyl titanate on the coating effect were investigated. The preparation process was optimized. The oxidation resistance of cBN-TiO₂ composite powder under optimal process was studied. The results show that the surface of cBN particles was coated with a layer of dense TiO₂ uniformly when the molar ratio of anhydrous ethanol to butyl titanate was 10∶1 and the molar ratio of cubic boron nitride to butyl titanate was 1∶1, indicating the best coating effect. The initial oxidation temperature of cBN-TiO composite powder prepared under optimal process was 900 ℃, and was 220 ℃ higher than that of cBN micro powder before coating with TiO₂.
- cubic boron nitride /
- sol-gel method /
- coating /
- oxidation resistance

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参考文献(7)

[1]	王光祖.立方氮化硼(cBN)特性综述[J].超硬材料工程,2005,17(5):41-42.
[2]	李重阳.立方氮化硼高温氧化性能的研究[J].中国化工贸易,2014,6(27):69-70.
[3]	HUANG Z, MANESS P C, BLAKE D M, et al. Bactericidal mode of titanium dioxide photocatalysis[J].Journal of Photochemistry & Photobiology A Chemistry, 1999, 130(2/3):163-170.
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[6]	姜铸峰,吴一,邹正光,等.立方氮化硼粉体的表面活化改性及其影响的研究[J].中国陶瓷,2016,52(8):52-53.
[7]	黄云龙,赵光明. 溶剂、催化剂对TiO₂溶胶-凝胶过程的影响[J]. 功能材料,1997,28(1):37-38.

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溶胶-凝胶法制备TiO2包覆cBN复合粉的工艺及性能

作者简介: 梁力行(1992-),男,广西桂平人,硕士研究生

计量

出版历程

Process and Property of TiO2 Coating cBN Composite Powder Prepared by Sol-Gel Method

计量

出版历程

目录

溶胶-凝胶法制备TiO₂包覆cBN复合粉的工艺及性能

作者简介:
梁力行(1992-),男,广西桂平人,硕士研究生

Process and Property of TiO₂ Coating cBN Composite Powder Prepared by Sol-Gel Method