| Al2O3—TiC—Co与Al2O3—TiC陶瓷冲蚀磨损行为的比较研究 |
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| 引用本文： | 茅东升,郦剑,郭绍义,毛志远. Al2O3—TiC—Co与Al2O3—TiC陶瓷冲蚀磨损行为的比较研究[J]. 无机材料学报, 1997, 12(5): 693-698 |
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| 作者姓名： | 茅东升 郦剑 郭绍义 毛志远 |
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| 作者单位： | 浙江大学材料科学与工程系!杭州，3100027，浙江大学材料科学与工程系!杭州，3100027，浙江大学材料科学与工程系!杭州，3100027，浙江大学材料科学与工程系!杭州，3100027 |
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| 基金项目： | 国家自然科学基金，重点资助!59332060 |
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| 摘 要： | 通过特殊的化学处理方法，完成了对Ａｌ２Ｏ３及ＴｉＣ陶瓷粉末的钴包覆，将包覆后的两种粉安７０ｗｔ％Ａｌ２Ｏ３－Ｃｏ和３０ｗｔ％ＴｉＣ－Ｃｏ的比例混合烧结出硬度和韧性都较理想的Ａｌ２Ｏ３－ＴｉＣ－Ｃｏ（ＡＴＣ）精细陶瓷，通过ＳＥＭ观察研究其冲饥蚀磨损行为，并对ＡＴ３０（７０ｗｔ％Ａｌ２Ｏ３－３０ｗｔ％ＴｉＣ）和ＡＴＣ陶瓷的冲蚀行为机制进行了比较研究，与ＡＴ３０陶瓷相比，ＡＴＣ陶瓷良好的综合力学性能和细
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| 关 键 词： | 陶瓷 冲蚀磨损 力学性 复合陶瓷 碳化硅 氧化铝 |
| 收稿时间： | 1996-09-16 |
| 修稿时间： | 1996-10-21 |
Study of Erosion Behavior of Al2O3-TiC-Co and Al2O3-TiC Ceramics |
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| MAO Dongsheng,LI jian,GUO Shaoyi,MAO Zhiyuan. Study of Erosion Behavior of Al2O3-TiC-Co and Al2O3-TiC Ceramics[J]. Journal of Inorganic Materials, 1997, 12(5): 693-698 |
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| Authors: | MAO Dongsheng LI jian GUO Shaoyi MAO Zhiyuan |
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| Affiliation: | Dept.ofMaterialsScienceEngineering;ZhejiangUniversityHangzhou310027China |
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| Abstract: | By a newly developed powder process, a layer of metal cobalt film was coated on the surface of fine ceramic powder of Al2O3 and TiC. The mixture of the two kinds of Co-coated powder (about 70wt%Al2O3-Co 30wt%TiC-Co) was hot-pressed into advanced Al2O3-TiC-Co(ATC) ceramic.Scanning electron microcopy (SEM) observation was employed to investigate its erosion behavior.Comparing with AT30 (70wt%Al2O3 30wt%TiC) ceramic, its high fracture toughness and fracture strength with relative fine microstructure make it more resistant than At30 ceramic against particle erosion under different impact velocity and impact angles. The SEM shows that the worn surface exhibits shallow detaching , microcrack and plastic deformation. Its proper wear resistance not only depends on its mechanical properties, but also its microstructure. |
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| Keywords: | ATC ceramic AT30 ceramic erosion mechanical properties microstructure |
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