| ZrO_2含量对超重力下燃烧合成快速凝固Al_2O_3/ZrO_2(4Y)复合陶瓷的影响 |
| |
| 引用本文： | 杨权,赵忠民,张龙,潘传增,宋亚林,刘明军. ZrO_2含量对超重力下燃烧合成快速凝固Al_2O_3/ZrO_2(4Y)复合陶瓷的影响[J]. 机械工程材料, 2009, 0(8) |
| |
| 作者姓名： | 杨权 赵忠民 张龙 潘传增 宋亚林 刘明军 |
| |
| 作者单位： | 军械工程学院先进材料研究所;武汉军械士官学校特种车辆教研室;烟台警备区; |
| |
| 基金项目： | 国家自然科学基金资助项目(50672131) |
| |
| 摘 要： | 采用超重力下燃烧合成技术,以快速凝固方式制备了Al2O3/ZrO2(4Y)复合陶瓷,用XRD、SEM与EDS等研究了ZrO2含量对复合陶瓷显微结构和性能的影响。结果表明:当复合陶瓷中ZrO2质量分数在34.1%~46.4%时,复合陶瓷的显微结构主要为棒晶;当质量分数为49.6%~53.7%时,其显微结构主要为形状不规则的ZrO2球晶;随着ZrO2含量的增加,复合陶瓷的相对密度逐渐降低(最高可达94.3%),而硬度和断裂韧度均呈先增高后降低的趋势,当ZrO2质量分数为42.6%时,硬度和断裂韧度均达到最高值,分别为13.1 GPa和13.5 MPa.m1/2。
|
| 关 键 词： | Al2O3/ZrO2(4Y) 燃烧合成 超重力 ZrO2含量 |
Effect of ZrO2 Content on Rapidly Solidified Composite Ceramic Al_2O_3/ZrO_2(4Y) Prepared by Combustion Synthesis under High Gravity |
| |
| YANG Quan,ZHAO Zhong-min,ZHANG Long,PAN Chuan-zeng,SONG Ya-lin,LIU Ming-jun. Effect of ZrO2 Content on Rapidly Solidified Composite Ceramic Al_2O_3/ZrO_2(4Y) Prepared by Combustion Synthesis under High Gravity[J]. Materials For Mechanical Engineering, 2009, 0(8) |
| |
| Authors: | YANG Quan ZHAO Zhong-min ZHANG Long PAN Chuan-zeng SONG Ya-lin LIU Ming-jun |
| |
| Affiliation: | YANG Quan1,2,ZHAO Zhong-min1,ZHANG Long1,PAN Chuan-zeng1,SONG Ya-lin3,LIU Ming-jun2(1.The Institute of Advanced Materials,Ordnance Engineering College,Shijiazhuang 050003,China,2.Teaching and Research Section of Special Vehicle,Wuhan Ordnance Petty Officer Institute of PLA,Wuhan 430075,3.Defending Department of Yantai,Yantai 264000,China) |
| |
| Abstract: | Based on combustion synthesis technology under high gravity to prepare rapidly solidified composite ceramic Al2O3/ZrO2(4Y),the influence of ZrO2 content on microstructure and properties of solidified composite ceramics Al2O3/ZrO2(4Y) was investigated through XRD,SEM and EDS.The results show that the main microstructure of the ceramic was rod-shaped eutectic colonies as the ZrO2 content was in the range of 34.1%-46.4%,and the microstructure transformed to be isolated spherically-shaped ZrO2 grains as the ZrO... |
| |
| Keywords: | Al2O3/ZrO2(4Y) combustion synthesis high gravity ZrO2 content |
| 本文献已被 CNKI 等数据库收录！ |
|
