摘要
片状氧化铝的性能优良,目前广泛应用于陶瓷增强材料、化妆品、珠光颜料等领域。本文以硫酸铝和硫酸铝铵为原料,以氯化钾为熔盐,利用熔盐合成法制备片状氧化铝,研究了不同氧化铝源、煅烧温度和熔盐的含量对片状氧化铝形貌和晶型的影响,结果显示氯化钾与硫酸铝物质量的比值为12︰1,煅烧温度为1000℃,保温时间为4小时,得到了α晶型的六角形片状氧化铝,且形貌规则。
Flake alumina has excellent properties, It has been widely used in various fields, such as ceramic reinforced material, pearlescent pigment, and so on.Flake aluminium oxide was prepared by molten salt synthesis method, aluminium sulfate and aluminum ammonium sulfate was chosen as raw materials, potassium chloride as the molten salt. The effect of different aluminum source, calcination temperature and molten salt content on morphology and crystal form of flake aluminum was studied in this article. The results show that the α flaked alumina with regular morphology is obtained when the sample is held at 1000℃ for 3 hours and the atom ratio of potassium chloride and aluminum sulfate is 12︰1.
作者
徐敬尧
周小丽
徐天凤
孙敬会
伊家飞
Xu Jingyao;Zhou Xiaoli;Xu Tianfeng;Sun Jinghui;Yi Jiafei(School of Materials Science and Engineering,Baise University,Baise 533000;School of Chemical and Environmental Engineering,Baise University,Baise 533000,China)
出处
《广东化工》
CAS
2021年第11期25-26,49,共3页
Guangdong Chemical Industry
基金
广西自然科学基金重点资助项目(2016GXNSFDA380024)
2019年度广西高校中青年教师科研基础能力提升项目(2019KY0757)
2020年度广西高校中青年教师科研基础能力提升项目(2020KY19023)。
关键词
熔盐法
片状氧化铝
形貌
煅烧温度
晶型
molten salt
flaky alumina
morphology
calcination temperature
crystal structure
