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| Al2TiO5-Al2O3复相陶瓷的研究 | |
| 引用本文： | 陈建华,陆洪彬,冯春霞,李文丹,单月圆.Al2TiO5-Al2O3复相陶瓷的研究[J].常熟理工学院学报,2008,22(2):63-67. |
| 作者姓名： | 陈建华 陆洪彬 冯春霞 李文丹 单月圆 |
| 作者单位： | 1. 常熟理工学院,新型功能材料重点实验室,江苏,常熟,215500 2. 盐城工学院,材料工程学院,江苏,盐城,224003 3. 南京工业大学,材料科学与工程学院,江苏,南京,210009 |
| 基金项目： | 江苏省自然科学基金(BK2002044)资助项目 |
| 摘 要： | 利用一次烧成和二次烧成两种方法制备了Al2TiO5-Al2O3复相陶瓷，研究了Al2TiO5-Al2O3复相陶瓷的烧结工艺和原料组成对其性能的影响．研究结果表明：Al2TiO5-Al2O3复相陶瓷的组成和烧成工艺对其性能具有重要影响．利用一次烧成制得的Al2TiO5-Al2O3复相陶瓷的综合性能优于二次烧成．一次烧成组成为80wt％氧化铝和20wt％钛酸铝的复相陶瓷，其吸水率仅有0．11％，显气孔率为0．32％，体积密度为3．00g·cm^-3，弯曲强度达152．88MPa，热膨胀系数为7．5×10^-6/℃． |
| 关 键 词： | 氧化铝 钛酸铝 热膨胀系数 弯曲强度 |
| 文章编号： | 1008-2794(2008)02-0063-05 |
| 修稿时间： | 2007年10月18 |
A Study on Al2TiO5-Al2O3 Composite Ceramics |
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| CHEN Jian-hua,LU Hong-bin,FENG Chun-xia,LI Wen-dan,SHAN Yue-yuan.A Study on Al2TiO5-Al2O3 Composite Ceramics[J].Journal of Changshu Institute of Technology,2008,22(2):63-67. | |
| Authors: | CHEN Jian-hua LU Hong-bin FENG Chun-xia LI Wen-dan SHAN Yue-yuan |
| Institution: | CHEN Jian-hua , LU Hong-bin , FENG Chun-xia, LI Wen-dan , SHAN Yue-yuan (1. Key Lab for New Functional Materials of Jiangsu, Changshu Institute of Technology, Changshu 215500, China 2. School of Material Engineering, Yancheng Institute of Technology, Yancheng 224003, China; 3. College of Material Science and Engineering, Nanjing University of Technology, Nanjing 210009, China) |
| Abstract: | Al2TiO5-Al2O3 composite ceramics were prepared by one step firing and two steps firing. The effects of sintering process and raw material composition of Al2TiO5-Al2O3 composite ceramics on the performances were studied. The results indicate that the composition and sintering process of the Al2TiO5-Al2O3composite ceramics have an important influence on the performances. The combination properties of the Al2TiO5-Al2O3 composite ceramics those prepared by one step firing are better than those prepared by two steps firing. When the composite ceramics with the composition of 80wt% alumina and 20wt% aluminium titanate are prepared by one step firing, the water absorptivity of the Al2TiO5-Al2O3 composite ceramics is only 0. 11% , the open porosity is 0. 32% , the bulk density is 3.00 g · cm^-3, the bending strength reaches 152. 88 MPa, and the thermal-expansion coefficient is 7.5 × 10 -6/℃ . |
| Keywords: | alumina aluminium-titanate thermal-expansion coefficient bending strength |
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