| 激光烧结SiC陶瓷复合材料块体的组织及性能研究 |
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| 引用本文： | 高雪松,黄因慧,田宗军,刘志东,沈理达,王桂峰.激光烧结SiC陶瓷复合材料块体的组织及性能研究[J].应用激光,2008,28(4). |
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| 作者姓名： | 高雪松 黄因慧 田宗军 刘志东 沈理达 王桂峰 |
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| 作者单位： | 1. 南京航空航天大学江苏省精密与微细制造技术重点实验室,江苏,南京,210016;南京航空航天大学机电学院,江苏,南京,210016
2. 南京航空航天大学机电学院,江苏,南京,210016 |
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| 基金项目： | 国家自然科学基金，江苏省自然科学基金 |
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| 摘 要： | 在45钢基体上利用激光烧结技术制备了SiC陶瓷复合材料块体,并利用扫描电子显微镜、能谱仪、显微硬度计等设备,分析了试样的显微组织特征,并对试样硬度和磨损性能进行了测定.结果表明,SiC纳米颗粒作为纳米添加相,一部分弥散在粘结相镍基合金中,使材料的力学性能大大改善,另一部分由于机械混合的不均匀性而形成团簇,并作为微观应力抑制点;而复合材料中的WC微米颗粒在高比能量的激光作用下,被进一步细化和分散在粘结相中;分析同时发现,随着激光功率的增加,材料的硬度和耐磨损性能明显增加,力学性能得到改善.
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| 关 键 词： | 激光烧结 复合材料 |
Microstructure and Performance of Laser Sintering of SiC Composite Ceramic Materials |
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| Gao Xuesong,Huang Yinhui,Tian Zongjun,Liu zhidong,Le guan,Wang Guifeng.Microstructure and Performance of Laser Sintering of SiC Composite Ceramic Materials[J].Applied Laser,2008,28(4). |
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| Authors: | Gao Xuesong Huang Yinhui Tian Zongjun Liu zhidong Le guan Wang Guifeng |
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| Affiliation: | Gao Xuesong1,2,Huang Yinhui1,Tian Zongjun1,Liu zhidong1,Le guan2,Wang Guifeng2(1Jiangsu Key Laboratory of Precision , Micro-Manufacturing Technology,Nanjing University of Aeronautics, Astronautics,Naijing,Jiangsu 210016,China,2College of Mechanical , Electrical Engineering,Nanjing University of Aeronautics , Astronautics,China) |
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| Abstract: | The two kinds of proportional composite ceramic bulks of nano-SiC have been attained on 45#carbon steel by laser sintering.The microstructure and the mechanism of those bulks are analyzed with SEM and EDS,the micro-hardness and wear resistance is measured.The results show that some nano-SiC particles are dispersed into Nickel-based metal by powerful laser,the performance of bulks have been reinforced by those nano-SiC particles,another part of nano-SiC particles forms the group bunch according to machinery ... |
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| Keywords: | SiC |
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