有色金属科学与工程2024，Vol.15Issue(3)：342-350,9.DOI:10.13264/j.cnki.ysjskx.2024.03.004
超声波场下氢氧化铝制备超细氧化铝的研究
Study on preparation of ultrafine alumina by aluminum hydroxide under ultrasonic field
摘要
Abstract
The ultrafine powder material is one of the key research fields of new materials.Ultrafine alumina is widely used in fine ceramics,composite materials,catalysts and their supporters due to its high strength and large specific surface area.The conventional methods of preparing ultrafine powders have many problems,such as large particle size distribution,high production cost,serious pollution and complex technology.However,the unique advantages of ultrasonic technology in controlling the particle size,particle size distribution and morphology of ultrafine powders have gradually become the frontier technology for ultrafine powders preparation.In this paper,aluminum hydroxide was used as raw material,and ultra-fine α-Al2O3 with a particle size of 100-200 nm was prepared by ultrasonic-assisted aluminum ammonium carbonate thermal decomposition method through acid dissolution of aluminum hydroxide,ultrasonic precipitation of aluminum salt,drying of precursor and final calcination.The products were characterized and analyzed,and the ideal process parameters for preparing ultrafine alumina with small particle size and good dispersion were explored.关键词
超声波/碳酸铝铵/超细氧化铝/粉体Key words
ultrasonic/ammonium aluminum carbonate/ultrafine alumina/powder分类
矿业与冶金引用本文复制引用
宋华浩,金会心,王正兴,雷二帅..超声波场下氢氧化铝制备超细氧化铝的研究[J].有色金属科学与工程,2024,15(3):342-350,9.基金项目
国家自然科学基金地区基金资助项目(52164036) （52164036）
