The Effect of Boehmite on Electrokinetic Behaviours, Rheology and Coagulation for Direct Coagulation Casting of Alumina

Journal of Inorganic Materials

• Research Paper • Previous Articles Next Articles

The Effect of Boehmite on Electrokinetic Behaviours, Rheology and Coagulation for Direct Coagulation Casting of Alumina

XIE Zhipeng; YANG Jinlong; HUANG Yong; WillJ⁺; GaucklerLJ⁺

Department of Materials Science and Engineering Tsinghua University Beijing 100084 China; ⁺Swiss Federal Institute of Technology; Zurich; Switzerland

Received:1996-09-19 Revised:1996-11-25 Published:1997-10-20 Online:1997-10-20

Abstract

Abstract: Direct Coagulation Casting (DCC) is a novel near net shape process for ceramics materials. However, the green body strength by DCC is low compared with gelcasting
and injection molding. Boehmite sol was added for α-Al₂O₃-DCC in order to increase the green strength of alumina. In this paper, the characteristics of electrokinetics, rheology and coagulation process were invesigated for the system of Al₂O₃+AlOOH. In
special the effects of AlOOH addition on coagulation behaviours such as amount of enzyme and kinetics of consolidation process were discussed.

Key words: direct coagulation casting, alumina, boehmite

XIE Zhipeng,YANG Jinlong,HUANG Yong,WillJ,GaucklerLJ. The Effect of Boehmite on Electrokinetic Behaviours, Rheology and Coagulation for Direct Coagulation Casting of Alumina[J]. Journal of Inorganic Materials.

[1]	WU Xiangquan, TENG Jiachen, JI Xiangxu, HAO Yubo, ZHANG Zhongming, XU Chunjie. Textured Porous Al₂O₃-SiO₂ Composite Ceramic Platelet-sphere Slurry: Characteristics and Simulation of Light Intensity Distribution [J]. Journal of Inorganic Materials, 2024, 39(7): 769-778.
[2]	LIU Wenlong, ZHAO Jin, LIU Juan, MAO Xiaojian, ZHANG Jian, WANG Shiwei. Microwave Drying of Spontaneous-Coagulation-Cast Wet Alumina Green Body [J]. Journal of Inorganic Materials, 2023, 38(4): 461-468.
[3]	JIA Yuna, CAO Xu, JIAO Xiuling, CHEN Dairong. Preparation of Alumina Ceramic Continuous Fibers with Inorganic Acidic Aluminum Sol as Precursor [J]. Journal of Inorganic Materials, 2023, 38(11): 1257-1264.
[4]	FENG Kun, ZHU Yong, ZHANG Kaiqiang, CHEN Zhang, LIU Yu, GAO Yanfeng. Boehmite Nanosheets-coated Separator with Enhanced Performance for Lithium-ion Batteries [J]. Journal of Inorganic Materials, 2022, 37(9): 1009-1015.
[5]	WANG Shiwei. Progress of Spontaneous Coagulation Casting of Ceramic Slurries Based on Hydrophobic Interaction [J]. Journal of Inorganic Materials, 2022, 37(8): 809-820.
[6]	WANG Xingang, YANG Qingqing, LIN Genlian, GAO Wei, QIN Fulin, LI Rongzhen, KANG Zhuang, WANG Xiaofei, JIANG Danyu, YAN Jina. High Temperature Tensile Property of Domestic 550-grade Continuous Alumina Ceramic Fiber [J]. Journal of Inorganic Materials, 2022, 37(6): 629-635.
[7]	ZHOU Ganghuai, LIU Yao, SHI Yuan, LIU Shaojun. Slurry Preparation and Stereolithography for Activated Alumina Catalyst Carrier [J]. Journal of Inorganic Materials, 2022, 37(3): 297-302.
[8]	ZENG Yong, ZHANG Zijia, SUN Lijun, YAO Haihua, CHEN Jiming. Atmosphere Debinding Heat Treatment of 3D Printed Alumina Ceramics [J]. Journal of Inorganic Materials, 2022, 37(3): 333-337.
[9]	WEI Hailang, CAO Xueqiang, DENG Longhui, JIANG Jianing. Thermodynamic Properties and Thermal Cycling Lifetimes of LaMeAl₁₁O₁₉/YSZ Thermal Barrier Coatings [J]. Journal of Inorganic Materials, 2022, 37(12): 1259-1266.
[10]	HAO Hongjian, LI Haiyan, WAN Detian, BAO Yiwang, LI Yueming. Enhanced Flexural Strength and Thermal Shock Resistance of Alumina Ceramics by Mullite/Alumina Pre-stressed Coating [J]. Journal of Inorganic Materials, 2022, 37(12): 1295-1301.
[11]	PENG Fei, JIANG Yonggang, FENG Jian, CAI Huafei, FENG Junzong, LI Liangjun. Research Progress on Alumina Aerogel Composites for High-temperature Thermal Insulation [J]. Journal of Inorganic Materials, 2021, 36(7): 673-684.
[12]	FENG Mingxing, WANG Bin, XU Pengyu, TU Bingtian, WANG Hao. Predicting Thermomechanical Properties of MgAl₂O₄ Transparent Ceramic Based on Bond Valence Models [J]. Journal of Inorganic Materials, 2021, 36(10): 1067-1073.
[13]	HAN Hai-Bo, WANG You-He, LI Kang, LEI Jie, LIU Dan-He, YAN Zi-Feng. Acetic Acid Leaching on the Structure, Acidity and Performance of HMOR Catalyst [J]. Journal of Inorganic Materials, 2019, 34(2): 179-185.
[14]	CHEN Wen-Bo, CHEN Lun-Jiang, LIU Chuan-Dong, CHENG Chang-Ming, TONG Hong-Hui, ZHU Hai-Long. Preparation of Spherical Alumina Powder by RF Thermal Plasma: Numerical Simulation and Experimentation [J]. Journal of Inorganic Materials, 2018, 33(5): 550-556.
[15]	YANG Jing-Feng, WANG Qi-Hua, WANG Ting-Mei. Synthesis and Property of Alumina Aerogel [J]. Journal of Inorganic Materials, 2018, 33(3): 259-265.

The Effect of Boehmite on Electrokinetic Behaviours, Rheology and Coagulation for Direct Coagulation Casting of Alumina

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments