| 几种工程陶瓷的延性域磨削 |
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| 引用本文： | 纳米尔,董向红.几种工程陶瓷的延性域磨削[J].天津大学学报(自然科学与工程技术版),1999,32(4):486-491. |
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| 作者姓名： | 纳米尔 董向红 |
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| 作者单位： | [1]天津大学机械工程学院 [2]天津大学精密仪器与光电子工程学院 |
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| 基金项目： | 国家自然科学基金,教育部高温结构陶瓷与工程陶瓷材料加工技术开放实验室资助项目 |
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| 摘 要： | 在几种磨削条件下，采用不同粒度金刚石石砂轮对工程陶瓷材料进行了延性域磨削，着重研究了磨粒尺寸和各磨削参数对陶瓷材料磨削过程中脆性／延性转换的和各磨削转换的影响，并用微粉金刚石砂轮（Ｗ２．５）进行ＺｒＯ２、Ｓｉａｌｏｎ和Ｓｉ３Ｎ４陶瓷的超精密磨削，获得表面粗糙度Ｒａ３，４，８ｎｍ的超光滑镜面最后采用ＳＴＭ对上述精密镜面的形貌和细节进行了观测，为解释延性域磨削的表面形成机理提出了依据。
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| 关 键 词： | 脆性／延性转换 磨削参数 延性域磨削 工程陶瓷 |
DUCTILE REGIME GRINDING OF ENGINEERING CERAMICS |
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| Namer,Lin Bin,Guan Qiong,Yu Siyuan.DUCTILE REGIME GRINDING OF ENGINEERING CERAMICS[J].Journal of Tianjin University(Science and Technology),1999,32(4):486-491. |
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| Authors: | Namer Lin Bin Guan Qiong Yu Siyuan |
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| Abstract: | The ductile regime grinding of engineering ceramics were carried with various grain diamond wheels in several grinding conditions,and the influence of grain size and grinding parameters on the brittle/ductile transition in grinding process was investegated.Several precise ductile mirror surfaces with the roughness of about 3,4,8 nm R a could be generated when ZrO 2,Sialon and Si 3N 4 ceramics were ground by fine grain diamond wheel with a grain size W2.5.The topography and details of precise mirror surface were measured by STM (Scanning Tunnel Microscope),it is beneficial to explain the surface formation mechanism in ductile regime grinding. |
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| Keywords: | brittle/ductile transition grain size grinding parameters STM ductile regime grinding |
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