| 氧化铝源对CA6多孔材料相组成和显微结构的影响 |
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| 引用本文： | 康国卫,刘馨,吴然,汪涤,李莹,刘新红,贾全利. 氧化铝源对CA6多孔材料相组成和显微结构的影响[J]. 硅酸盐通报, 2021, 40(3): 1038-1045 |
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| 作者姓名： | 康国卫 刘馨 吴然 汪涤 李莹 刘新红 贾全利 |
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| 作者单位： | 郑州大学,河南省高温功能材料重点实验室,郑州 450052;河南建筑材料研究设计院有限责任公司,郑州 450002 |
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| 基金项目： | 国家自然科学基金(51872266);河南省自然科学基金(202300410473) |
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| 摘 要： | 用Al(OH)3、Al2 O3微粉(uf-Al2 O3)、工业Al2 O3粉作为氧化铝源,CaCO3为钙源,通过高温固相反应合成了六铝酸钙(CA6)材料,研究了氧化铝原料对材料物相组成、显微结构和性能的影响.结果表明,以Al(OH)3、Al2O3微粉、工业Al2 O3为氧化铝源的试样在1300℃时开始有CA6相生成,各...
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| 关 键 词： | 六铝酸钙 多孔材料 氧化铝源 物相组成 固相反应 |
| 收稿时间： | 2020-12-09 |
Influence of Alumina Source on Phase Composition and Microstructure of CA6 Porous Materials |
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| KANG Guowei,LIU Xin,WU Ran,WANG Di,LI Ying,LIU Xinhong,JIA Quanli. Influence of Alumina Source on Phase Composition and Microstructure of CA6 Porous Materials[J]. Bulletin of the Chinese Ceramic Society, 2021, 40(3): 1038-1045 |
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| Authors: | KANG Guowei LIU Xin WU Ran WANG Di LI Ying LIU Xinhong JIA Quanli |
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| Affiliation: | 1. Henan Key Laboratory of High Temperature Functional Ceramics, Zhengzhou University, Zhengzhou 450052, China; 2. Henan Building Materials Research and Design Institute Co., Ltd., Zhengzhou 450002, China |
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| Abstract: | CA6 materials have been synthesized by high temperature solid state reaction using CaCO3 as calcium source combined with Al(OH)3, uf-Al2O3 and industrial Al2O3 as alumina sources. Effects of alumina sources on phase composition, microstructure and properties of CA6 materials were studied. The results show that CA6 forms at 1 300 ℃ using Al(OH)3 and uf-Al2O3 as alumina sources. Solid state reaction temperature of samples finishes at 1 500 ℃. Further increasing of firing temperature has no effect on the phase composition. The microstructure of CA6 produced by the reaction is changed with different alumina sources. When Al(OH)3 is used as the alumia source, the microstructure of CA6 is mostly platy. However, as used industrial Al2O3 as the alumia source, the microstructure of CA6 is mostly plate-like and granular, but the microstructure of CA6 is mostly equiaxed grains by using uf-Al2O3 as precursor. When used uf-Al2O3 as the source, the compressive strength and bulk density of the materials are the highest, and the porosity is the lowest. As used Al(OH)3 as alumina source, the compressive strength and bulk density of the materials are the lowest, and the porosity is the highest. |
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| Keywords: | calcium hexaaluminate porous material alumina source phase composition solid state reaction |
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