人工晶体学报2013，Vol.42Issue(4)：701-705,711,6.
用粉煤灰和高岭土混合原料合成β-Sialon粉体
Synthesis of β-Sialon Powders from Fly Ash and Kaolin
摘要
Abstract
β-Sialon powder with different z values was synthesized using fly ash and kaolin as the starting materials by carbothermal reduction and nitridation.Phases and microstructure of the product were analyzed by X-ray diffractometer and scanning electron microscope.The results show that β-Sialon with z value of 3 (Si3Al3O3N5) was synthesized using the starting material with Si/Al ratio of 1.5 and 100% excessive carbon content at 1450 ℃ for 6 h, and the microstructure of the powder was fibrous.β-Sialon with z value of 2 (Si4Al2O2N6) was obtained with Si/Al ratio of 1.7 and the 150% excessive carbon content at 1450 ℃ for 6 h, and the microstructure of this powder was fibrous and slabby.关键词
粉煤灰/高岭土/Sialon/碳热还原氮化法Key words
fly ash/ kaolin/ Sialon/ carbothermal reduction nitridation分类
化学化工引用本文复制引用
马国斯,谢襄漓,易文龙,王林江..用粉煤灰和高岭土混合原料合成β-Sialon粉体[J].人工晶体学报,2013,42(4):701-705,711,6.基金项目
国家自然科学基金(51064006) （51064006）
