| 溶胶—凝胶工艺制备Al2O3-ZrO2涂层对工程陶瓷表面改性的研究 |
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| 引用本文： | 张勤俭,吴春丽,李敏,张勤河,秦勇,毕进子,张建华.溶胶—凝胶工艺制备Al2O3-ZrO2涂层对工程陶瓷表面改性的研究[J].工具技术,2001,35(7):18-20,26. |
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| 作者姓名： | 张勤俭 吴春丽 李敏 张勤河 秦勇 毕进子 张建华 |
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| 作者单位： | 1. 山东大学机械工程学院
2. 同济大学环境工程学院 |
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| 基金项目： | 国家自然科学基金资助项目 (项目编号 :5 0 0 75 0 48) |
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| 摘 要： | 采用溶胶－凝胶工艺在SG4氧化铝基工程陶瓷上成功制备了Al2O3-ZrO2 涂层。利用差热分析（DTA）、扫描电子显微镜（SEM）、X射线衍射（XRD）等分析手段对Al2O3-ZrO2涂层的物相组成、表面和断面形貌进行了表征。分别对精磨、热处理、Al2O3-ZrO2涂层试样的抗弯强度和Weibull模数进行了比较。结果表明：Al2O3-ZrO2涂层可明显改善工程陶瓷的表面质量；涂层与基体结合紧密，无明显界面层；涂层试样的抗弯强度和Weibull模数均比未涂层试样显著提高。
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| 关 键 词： | 溶胶－凝胶工艺 Al2O3－ZrO2涂层 抗弯强度 Weibull模数 工程陶瓷 表面改性 |
Study on Surface Modification of Engineering Ceramics with Al2O3-ZrO2 Coating Prepared by Sol-gel Process |
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| Zhang Qinjian,et al.Study on Surface Modification of Engineering Ceramics with Al2O3-ZrO2 Coating Prepared by Sol-gel Process[J].Tool Engineering(The Magazine for Cutting & Measuring Engineering),2001,35(7):18-20,26. |
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| Authors: | Zhang Qinjian |
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| Affiliation: | Zhang Qinjian et al |
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| Abstract: | The Al 2O 3 ZrO 2 coating is prepared on SG4 alumina engineering ceramics by the sol gel process. The composition, surface and cross section appearances of Al 2O 3 ZrO 2 coating are characterized by DTA, SEM and XRD. The bending strength and Weibull modulus of the samples after finishing grinding, heat treatment and coated with Al 2O 3 ZrO 2 film are compared. The results show that the surface quality of engineering ceramics can be improved evidently by the Al 2O 3 ZrO 2 coating. The cohesion of the coating and substrate is compact without distinct interface. The coated samples have the bigger bending strength and Weibull mo dulus. |
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| Keywords: | sol gel process Al 2O 3 ZrO 2 coating bending strength Weibull modulus |
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