基于复合熔盐低温制备片状α-氧化铝的研究

doi:10.19964/j.issn.1006-4990.2022-0233

Abstract

Abstract:

Based on KCl-NaCl-AlF₃ molten salt system，the flake α-Al₂O₃ was prepared with aluminum hydroxide as aluminum source，potassium chloride and sodium chloride mixed molten salt as reaction medium and aluminum fluoride as additive.Furthermore，the influences of aluminum fluoride content，calcining temperature and holding time on morphology and crystal structure of the flake alumina were studied respectively by characterization methods of scanning electron microscope and X-ray diffraction.The results showed that the flake α-Al₂O₃ with radial size of 5.1 μm，diameter-thickness ratio of 18 and good dispersibility was obtained by calcining at 750 ℃ for 180 min with mass ratio of aluminum fluoride and aluminum hydroxide of 5%.

Key words: molten salt method, α-alumina, flaky alumina, low temperature

CLC Number:

TQ424.27

XU Jingyao,ZHOU Xiaoli,SUN Jinghui,CAO Alin,QING Peilin. Study on preparation of flake α-alumina based on mixed molten salt at low temperature[J]. Inorganic Chemicals Industry, 2023, 55(2): 73-78.

Figures/Tables 7

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References 15

1	武志富.纳米氧化铝形貌与性质之间的关系研究[J].人工晶体学报，2020，49（2）：353-357.
	WU Zhifu.Study on the relationship between the morphology and properties of nanoscale alumina[J].Journal of Synthetic Crystals，2020，49（2）：353-357.
2	姚慧超，彭懋.片状氧化铝/聚合物复合材料的研究进展[J].材料科学与工程学报，2019，37（5）：833-839.
	YAO Huichao， PENG Mao.Progress of study of alumina platelets reinforced polymer composites[J].Journal of Materials Science and Engineering，2019，37（5）：833-839.
3	苏界.新型片状Al₂O₃材料的可控制备及其在新一代珠光颜料中的应用研究[D].武汉：湖北大学，2017.
	SU Jie.Controllable preparation of a new flake alumina materials and its application in the new generation of pearlescent pigment[D].Wuhan：Hubei University，2017.
4	楚肖莉，孙立军，查鲲鹏，等.片状氧化铝/球形氮化硼导热膏的制备及表征[J].青岛科技大学学报：自然科学版，2021，42（2）：73-78，84.
	CHU Xiaoli， SUN Lijun， ZHA Kunpeng，et al.Preparation and characterization of alumina platelets/spherical boron nitride thermal grease[J].Journal of Qingdao University of Science and Technology：Natural Science Edition，2021，42（2）：73-78，84.
5	王玲，王千瑞，刘冲，等.片状氧化铝的发展历程与应用前景[J].陶瓷学报，2016，37（6）：608-612.
	WANG Ling， WANG Qianrui， LIU Chong，et al.Development process and application prospect of flaky aluminum oxide[J].Journal of Ceramics，2016，37（6）：608-612.
6	杨岚婷，王兆文，杨酉坚，等.以粉煤灰为原料制备用于导热填料的板片状氧化铝[J].轻金属，2022（2）：1-4，13.
	YANG Lanting， WANG Zhaowen， YANG Youjian，et al.Preparation of plate-like alumina used as thermal conductive filler from fly ash[J].Light Metals，2022（2）：1-4，13.
7	孙敬会，卿培林.高温固相法制备片状氧化铝[J].中国陶瓷，2021，57（12）：34-38，52.
	SUN Jinghui， QING Peilin.Preparation of flake aluminum oxide powder by high temperature solid phase method[J].China Ceramics，2021，57（12）：34-38，52.
8	孙敬会，伊家飞，徐敬尧，等.基于薄膜技术制备超细片状氧化铝的研究[J].真空科学与技术学报，2018，38（12）：1080- 1087.
	SUN Jinghui， YI Jiafei， XU Jingyao，et al.Preparation of ultrafine lamellate alumina powder via chemical route[J].Chinese Journal of Vacuum Science and Technology，2018，38（12）：1080-1087.
9	ZHANG Qianying， GENG Xun.Preparation of flaky alumina powder by molten salt synthesis method[J].Advanced Materials Research，2014，997：428-432.
10	张鹤，邵国强，史和邦，等.片状氧化铝的熔盐法制备关键参数[J].化工进展，2021，40（8）：4187-4195.
	ZHANG He， SHAO Guoqiang， SHI Hebang，et al.Key parameters of preparing flake alumina by molten salt method[J].Che-mical Industry and Engineering Progress，2021，40（8）：4187-4195.
11	MIAO Zhuang， SHI Jiangong， ZHANG Wenping，et al.Effect of NH₄F and nano-SiO₂ on morphological control of α-Al₂O₃ platelets via solid-state reaction[J].China Petroleum Processing ＆ Petrochemical Technology，2016，18（4）：19-24.
12	张集发，程小苏，税安泽.高温固相法制备片状α-Al₂O₃粉体[J].硅酸盐通报，2015，34（S1）：284-288，292.
	ZHANG Jifa， CHENG Xiaosu， SHUI Anze.Preparation of flaky α-Al₂O₃ by high temperature solid phase method[J].Bulletin of the Chinese Ceramic Society，2015，34（S1）：284-288，292.
13	孙春晖，朱玲玲，李赛，等.前驱体预处理及卤化铵添加剂对α-氧化铝微粉颗粒形貌的影响[J].无机盐工业，2018，50（9）：19-23.
	SUN Chunhui， ZHU Lingling， LI Sai，et al.Effect of pretreated precursor and halogenated ammonia additives on the morphology of α-Al₂O₃ powders[J].Inorganic Chemicals Industry，2018，50（9）：19-23.
14	李波，邵玲玲.氧化铝、氢氧化铝的XRD鉴定[J].无机盐工业，2008，40（2）：54-57.
	LI Bo， SHAO Lingling.Appraisal of alumina and aluminium hydroxide by XRD[J].Inorganic Chemicals Industry，2008，40（2）：54-57.
15	FU Gaofeng， WANG Jing， KANG Jian.Influence of AlF₃ and hydrothermal conditions on morphologies of α-Al₂O₃ [J].Transactions of Nonferrous Metals Society of China，2008，18（3）：743- 748.

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Study on preparation of flake α-alumina based on mixed molten salt at low temperature

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