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| 注凝成型制备莫来石–钛酸铝复相陶瓷(英文) | |
| 引用本文： | 陆洪彬,陈建华,冯春霞,焦宝祥,孟祥康.注凝成型制备莫来石–钛酸铝复相陶瓷(英文)[J].硅酸盐学报,2009,37(5). |
| 作者姓名： | 陆洪彬 陈建华 冯春霞 焦宝祥 孟祥康 |
| 作者单位： | 1. 盐城工学院材料工程学院,江苏,盐城,224051;南京大学材料科学与工程系,固体微结构国家实验室,南京,210093 2. 常熟理工学院,江苏省新型功能材料实验室,江苏,常熟,215500 3. 盐城工学院材料工程学院,江苏,盐城,224051 4. 南京大学材料科学与工程系,固体微结构国家实验室,南京,210093 |
| 基金项目： | 江苏省自然科学基金，江苏省生态环境材料重点实验室开放基金 |
| 摘 要： | 引入10%(摩尔分数,相对于A12O3,下同)MgO和15%SiO2双组分添加剂合成了钛酸铝粉体.采用不同质量比的钛酸铝粉体和工业莫来石,用干压和注凝成型工艺制备了莫来石-钛酸铝(mullite-aluminium titanate,MAT)复相陶瓷.用X射线衍射分析了双组分添加剂对钛酸铝相组成和热稳定性的影响.通过扫描电镜表征了MAT复相陶瓷的微结构.研究了钛酸铝含量对采用于压、注凝2种成型工艺制备的MAT复相陶瓷的弯曲强度和平均热膨胀系数(室温～1 000℃)的影响.结果表明:MgO和SiO2双组分添加剂促进了钛酸铝的形成,增强了钛酸铝的热稳定性.通过注凝成型制备的MAT复相陶瓷比于压成型制备的MAT复相陶瓷具有史均匀的结构和更高的机械性能.当铸酸铝含量为lO%(质量分数,下同),运用注凝成型工艺 制备的MAT复相陶瓷的弯曲强度最大,达110.05 Mpa. |
| 关 键 词： | 注凝成型 钛酸铝 莫来石 热稳定性 弯曲强度 |
PREPARATION OF MULLITE-ALUMINIUM TITANATE CERAMIC COMPOSITES VIA GELCASTING |
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| LU Hongbin,CHEN Jianhua,FENG Chunxia,JIAO Baoxiang,MENG Xiangkang.PREPARATION OF MULLITE-ALUMINIUM TITANATE CERAMIC COMPOSITES VIA GELCASTING[J].Journal of The Chinese Ceramic Society,2009,37(5). | |
| Authors: | LU Hongbin CHEN Jianhua FENG Chunxia JIAO Baoxiang MENG Xiangkang |
| Affiliation: | 1.School of Materials Engineering;Yancheng Institute of Technology;Yancheng 224051;Jiangsu;2.Jiangsu Laboratory of Advanced Functional Materials;Changshu Institute of Technology;Changshu 215500;3.Department of Materials Science and Engineering and National Laboratory of Solid State Microstructures;Nanjing University;Nanjing 210093;China |
| Abstract: | The mullite-aluminium titanate(MAT) ceramic composites were prepared via the gelcasting or dry pressing processes using industrial mullite and aluminium titanate(Al2TiO5) powders with different mass ratios,that titanate was synthesized by doping the bi-component additive of 10%(in mole,the same below) MgO and 15% SiO2 relative to Al2O3.Effects of the bi-component additive on the phase composition and thermal stabilization of aluminium titanate powder were analyzed by X-ray diffraction and the microstructure... |
| Keywords: | gelcasting aluminium titanate mullite thermal stabilization bending strength |
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