| Effects of Processing Parameters on Microstructure and Properties of Nanoscale ZrC/ZrB2 Multilayered Coatings |
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| 作者姓名： | 杨瑾 张学华 曹猛 王明霞 梁金岭 李德军 |
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| 作者单位： | College of Physics and Electronic Information Science, Tianjin Normal University, Tianjin 300074 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 50472026, and the Applied Basic Key Project of Tianjin （043801011）. |
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| 摘 要： | ZrC/ZrB2 multilayered coatings with bilayer periods of 3.5-40nm are synthesized by rf magnetron sputtering. Analyses of x-ray diffraction, scanning electron microscopy and nanoindentation indicate that multilayered coatings possess much higher hardness and greater fracture resistance than monolithic ZrC and ZrB2 coatings. A maximum hardness （41.TCPa） and a critical fracture load （73.7mN） are observed in the multilayer with A = 32 nm deposited at the substrate bias -40 V. Higher residual stress built in the ZrC layer can be released by periodic insertion of ZrB2 into the ZrC layer. A clear multilayered structure with mixed ZrB2（001）, ZrB2 （002） and ZrC （111） orientations should be responsible for the enhanced mechanical properties.
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| 关 键 词： | 加工参数 显微结构 纳米尺寸 ZrC/ZrB2多层涂料 |
| 收稿时间： | 2006-07-24 |
| 修稿时间： | 2006-07-24 |
Effects of Processing Parameters on Microstructure and Properties of Nanoscale ZrC/ZrB2 Multilayered Coatings |
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| YANG Jin, ZHANG Xue-Hua, CAO Meng, WANG Ming-Xia, LIANG Jin-Ling, LI De-Jun.Effects of Processing Parameters on Microstructure and Properties of Nanoscale ZrC/ZrB2 Multilayered Coatings[J].Chinese Physics Letters,2006,23(10):2838-2840. |
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| Authors: | YANG Jin ZHANG Xue-Hua CAO Meng WANG Ming-Xia LIANG Jin-Ling LI De-Jun |
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| Institution: | College of Physics and Electronic Information Science, Tianjin Normal University, Tianjin 300074 |
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