Effects of Al2O3 Particle Sizes on Microstructure and  Properties of CA6 Lightweight Ceramic Materials

Abstract

Abstract: In order to study the effects of Al₂O₃ particle sizes on microstructure and properties of CA₆ lightweight ceramic materials, lightweight calcium carbonate with an average particle size of 15 μm and α-Al₂O₃ with average particle sizes of 80, 61, 45 and 38 μm were used as calcium oxide and alumina sources, respectively. CA₆ lightweight ceramic materials were prepared by foaming method combined with in-situ sintering technology after being heated at 1 550 ℃ for 5 h. Effects of Al₂O₃ starting materials with different particle sizes on their physical properties, phase composition and microstructure were investigated. The results show that with the decrease of α-Al₂O₃ particle size, the linear shrinkage, bulk density and thermal conductivity of CA₆ lightweight ceramic materials gradually decreases, while their apparent porosity gradually increases and their compressive strength increases firstly and then decreases. Comprehensively considered, the specimen prepared by α-Al₂O₃ with an average particle size of 45 μm as alumina source has better comprehensive performance, and its apparent porosity, thermal conductivity and compressive strength are 87.8%, 0.149 W·m^-1·K^-1 and 0.29 MPa, respectively, which can better meet the needs of application.

Key words: CA₆ lightweight ceramic material, Al₂O₃ particle size, phase composition, microstructure, compressive strength, thermal conductivity

CLC Number:

TQ175

SHEN Tianzi, LI Wenfeng, GUO Huishi, CAO Jinjin, HOU Yonggai, DU Juan. Effects of Al₂O₃ Particle Sizes on Microstructure and Properties of CA₆ Lightweight Ceramic Materials[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(6): 2250-2255.

References

[1] 袁绮, 谭划, 杨廷旺, 等. 多孔陶瓷的制备方法及研究现状[J]. 硅酸盐通报, 2021, 40(8): 2687-2701.
YUAN Q, TAN H, YANG T W, et al. Preparation methods and research status of porous ceramics[J]. Bulletin of the Chinese Ceramic Society, 2021, 40(8): 2687-2701 (in Chinese).
[2] 熊鑫, 王周福, 王玺堂, 等. 原位生成六铝酸钙对刚玉质多孔材料结构和性能的影响[J]. 粉末冶金技术, 2019, 37(6): 410-415+421.
XIONG X, WANG Z F, WANG X T, et al. Effect of in situ synthesized calcium hexaluminate on the structure and properties of porous corundum materials[J]. Powder Metallurgy Technology, 2019, 37(6): 410-415+421 (in Chinese).
[3] 汪长安, 郎莹, 胡良发, 等. 轻质、高强、隔热多孔陶瓷材料的研究进展[J]. 陶瓷学报, 2017, 38(3): 287-296.
WANG C A, LANG Y, HU L F, et al. Research progress on lightweight and high strength heat-insulating porous ceramics[J]. Journal of Ceramics, 2017, 38(3): 287-296 (in Chinese).
[4] 郭文辉. 莫来石—堇青石质浇注料的轻量化研究[D]. 洛阳: 中钢集团洛阳耐火材料研究院有限公司, 2022.
GUO W H. Research on lightweight of mullite-cordierite castables[D]. Luoyang: Luoyang Refractory Research Institute Co., Ltd., 2022 (in Chinese).
[5] 冯鑫, 李文凤, 郭会师, 等. 隔热用多孔陶瓷材料制备方法的研究进展[J]. 陶瓷学报, 2022, 43(2): 186-195.
FENG X, LI W F, GUO H S, et al. Research progress on preparation of porous ceramic materials for thermal insulation[J]. Journal of Ceramics, 2022, 43(2): 186-195 (in Chinese).
[6] 康国卫, 刘苗伟, 杨亚峰, 等. 熔盐造孔法制备六铝酸钙多孔材料[J]. 耐火材料, 2021, 55(5): 448-451+455.
KANG G W, LIU M W, YANG Y F, et al. Preparation of calcium hexaaluminate porous materials by molten salt pore-forming method[J]. Refractories, 2021, 55(5): 448-451+455 (in Chinese).
[7] 曹易敏, 魏耀武, 孙华云, 等. 固含量对发泡法-凝胶注模制备六铝酸钙轻质材料性能和显微结构的影响[J]. 耐火材料, 2022, 56(4): 329-333.
CAO Y M, WEI Y W, SUN H Y, et al. Influence of solid loading on properties and microstructure of lightweight calcium hexaluminate materials prepared by foaming-gel casting[J]. Refractories, 2022, 56(4): 329-333 (in Chinese).
[8] 李昊, 李翠伟, 汪长安. 轻质高强堇青石多孔陶瓷的制备与表征[J]. 陶瓷学报, 2021, 42(4): 632-638.
LI H, LI C W, WANG C A. Preparation and characterization of porous cordierite ceramics with lightweight and high strength[J]. Journal of Ceramics, 2021, 42(4): 632-638 (in Chinese).
[9] 任威力, 杨道媛, 王瑞, 等. 发泡法制备镁铝尖晶石空心球隔热材料[J]. 耐火材料, 2022, 56(2): 117-122.
REN W L, YANG D Y, WANG R, et al. Preparation of magnesium aluminate spinel hollow sphere heat insulation refractories by foaming method[J]. Refractories, 2022, 56(2): 117-122 (in Chinese).
[10] LI W F, GUO H S, HUANG Q F, et al. Effect of stirring rate on microstructure and properties of microporous mullite ceramics[J]. Journal of Materials Processing Technology, 2018, 261: 159-163.
[11] 王宝林, 罗旭东. 氧化物添加剂与六铝酸钙烧结性能及显微结构的关系[J]. 耐火与石灰, 2022, 47(2): 13-16.
WANG B L, LUO X D. Relationship between oxide additives and sintering properities and microstructure of calcium hexaaluminate[J]. Refractories & Lime, 2022, 47(2): 13-16 (in Chinese).
[12] 朱浩辰, 陈树江, 李国华, 等. 添加剂对合成CA₆性能和显微结构的影响[J]. 耐火材料, 2018, 52(2): 126-128+143.
ZHU H C, CHEN S J, LI G H, et al. Effects of additives on properties and microstructure of synthesized CA₆[J]. Refractories, 2018, 52(2): 126-128+143 (in Chinese).
[13] 杨粉荣, 谢笑虎, 罗志勇. 堇青石原料粒径对堇青石陶瓷烧结性能的影响[J]. 耐火材料, 2017, 51(1): 65-67.
YANG F R, XIE X H, LUO Z Y. Effect of particle size of cordierite raw materials on sintering properties of cordierite ceramics[J]. Refractories, 2017, 51(1): 65-67 (in Chinese).
[14] 李有奇, 王冰伟, 张宇翠, 等. 工业氧化铝粉粒度对制备活性α-Al₂O₃微粉的影响[J]. 耐火材料, 2020, 54(3): 214-218.
LI Y Q, WANG B W, ZHANG Y C, et al. Effect of industrial alumina powder particle size on preparation of active α-Al₂O₃ micropowder[J]. Refractories, 2020, 54(3): 214-218 (in Chinese).
[15] ZHI J N, CHEN Z, YAN W, et al. Effect of Al(OH)₃ particle size on microstructures and strengths of porous MgAl₂O₄ ceramics[J]. Processing and Application of Ceramics, 2020, 14(3): 268-275.
[16] FENG X, Li W F, GUO H S, et al. Low-temperature fabrication and properties of porous calcium hexaluminate (CA₆) ceramics with low thermal conductivity by one-step method[J]. Ceramics International. 2023, 49(6): 9789-9798.
[17] 张锐, 王海龙, 许红亮. 陶瓷工艺学[M]. 2版. 北京: 化学工业出版社, 2013.
ZHANG R, WANG H L, XU H L. Ceramic technology[M]. 2nd edition. Beijing: Chemical Industry Press, 2013 (in Chinese).
[18] 曹易敏. 发泡法-凝胶注模制备轻质六铝酸钙性能的研究[D]. 武汉: 武汉科技大学, 2022.
CAO Y M. Research on the fabrication and properties of lightweight calcium hexaluminate by foam-gelcasting method[D]. Wuhan: Wuhan University of Science and Technology, 2022 (in Chinese).

Effects of Al₂O₃ Particle Sizes on Microstructure and Properties of CA₆ Lightweight Ceramic Materials

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