硅酸盐通报2011，Vol.30Issue(3)：519-523,5.
表面改性对β-SiC微粉流动性的影响
Eeffect of Surface Modification on the β-SiC Powder Fluidity
摘要
Abstract
β-SiC powders were surface modified by A and B surfactants. The morphology, particle size,surface properties and fluidity of the powders were investigated by X-ray diffraction ( XRD), laser particle size analyzer, scanning electron microscopy ( SEM), infrared spectroscopy, and DSC / TGA. The results showed that surfactants on β-SiC powder is surface adsorption coating. The thickness of coating surfactants B is greater than that of surfactants A. Surface modification don't change phase structure of the powders. Modifier coating occurres oxidative decomposition at 200-400 ℃. Surface modification could improve the fluidity of the powders. When the amount of surfactants B is 5wt％, the repose angle and the flat angle decrease 9° and 11°, respectively. Additionally, the compression degree would reduce from 35％ to 16％.关键词
碳化硅/表面改性/有机包覆改性Key words
silicon carbide/ surface modification/ organic coating modification分类
通用工业技术引用本文复制引用
张敏,王晓刚,陈进,邓丽荣,陆树河,华小虎..表面改性对β-SiC微粉流动性的影响[J].硅酸盐通报,2011,30(3):519-523,5.基金项目
国家自然科学基金(No.51074123) （No.51074123）
陕西省"13115"科技创新工程重大科技(2007ZDKG-46) （2007ZDKG-46）
陕西省教育厅科学研究计划(2010JK676) （2010JK676）
