| Ce-Y-ZTA 复相陶瓷的微波烧结 |
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| 引用本文： | 谢志鹏,李建保,张锐,黄勇. Ce-Y-ZTA 复相陶瓷的微波烧结[J]. 复合材料学报, 1998, 15(2): 48-52 |
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| 作者姓名： | 谢志鹏 李建保 张锐 黄勇 |
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| 作者单位： | 清华大学材料系新型陶瓷与精细工艺国家重点实验室, 北京 100084 |
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| 摘 要： | 系统研究了Ce-Y-ZTA 复相陶瓷批量试样在2. 45GHz, 功率0. 5～ 5kW 连续可调的矩形多模腔内的微波烧结过程及材料性能。实验表明: 通过合理的保温结构和工艺控制, 可实现高稳定性和重复性的微波快速烧结。相对密度达到99%TD。与常规烧结相比, 微波烧结过程只需约2小时, 致密化温度降低50～ 100℃。烧结后材料具有晶粒尺寸细小、均匀的显微结构, 弯曲强度由600M Pa 提高至670M Pa, 同时获得较高断裂韧性值。
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| 关 键 词： | Ce-Y-ZTA 复相陶瓷 微波烧结 多模腔 |
MICROWAVE SINTERING OF Ce-Y-ZTA COMPOSITE |
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| Xie Zhipeng,Li Jianbao,Zhang Rui,Huang Yong. MICROWAVE SINTERING OF Ce-Y-ZTA COMPOSITE[J]. Acta Materiae Compositae Sinica, 1998, 15(2): 48-52 |
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| Authors: | Xie Zhipeng Li Jianbao Zhang Rui Huang Yong |
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| Affiliation: | The State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084 |
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| Abstract: | The batch sintering process and resultant mechanical properties of Ce-Y-ZTA composite were studied using rectangular multimode microwave oven with a power supply of 5kW, 2.45GHz. The experimental results show that a fast ceramic sintering with high stability and repetition could be realized through suitable control of heating profile and improving of hybrid heating structure. Density of sintered specimens reached 99% the theoretical value. The microwave sintering process only cost two hours, and final sintering temperature had a decrease of 50 ℃ to 100℃ compared with conventional sintering. Finer grain size and more homogeneous microstructure could be observed, for microwave processing. Also higher flexural strength (from 600 MPa to 670MPa) and fracture toughness were obtained. |
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| Keywords: | Ce-Y-ZTA composite microwave sintering multimode cavity |
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