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中国腐蚀与防护学报  2007, Vol. 27 Issue (6): 363-366     
  研究报告 本期目录 | 过刊浏览 |
离心成型法制备无宏观界面的Al2O3/Ni功能梯度材料
赵志江;孙旭东;
PROCESSING OF AL2O3/NI FUNCTIONALLY GRADIENT COMPOSITES WITHOUT MACRO-INTERFACE BY CENTRIFUGAL COMPACTION
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全文: PDF(273 KB)  
摘要: 采用一种新颖的离心成型法制备了无宏观界面的Al2O3/Ni功能梯度材料, 并研究了料浆调制工艺、离心成型制备机理和梯度材料的力学性能。结果表明, 配制料浆时,粘结剂(聚乙二醇)含量为2 mass%、固相含量为63vol.%、球磨时间为36h,可得到流动性良好的料浆,经离心成型(40min,转速3000 r/min)得到无宏观界面的坯体,在1400 C真空烧结2 h,最终得到致密、组元宏观连续过渡的Al2O3/Ni梯度材料。通过调整固相含量和粘结剂含量,可调控Al2O3/Ni复合材料的成分梯度。
关键词 功能梯度材料Al2O3/Ni离心成型法料浆调    
Abstract:A novel centrifugal compaction method was used to fabricate Al2O3/Ni functionally gradient composites without macro-interface. The slurry preparation, centrifugal compaction mechanism and mechanical properties of the composites were investigated. The results show that slurry with good fluidity can be produced when the binder content, solid content and milling time is 2wt.%, 63vol.% and 36h, respectively. Greenbodies of the Al2O3/Ni functionally gradient composites without macro-interface were fabricated by centrifugal casting (3000 r/min for 40min). Al2O3/Ni functionally gradient composites were produced by vacuum sintering at 1400 C for 2 hours. Through adjusting the solid and binder content, the composition gradient in Al2O3/Ni composites can be controlled.
Key wordsfunctionally gradient composites    Al2O3/Ni    centrifugal compaction    bending strength
收稿日期: 2007-03-28     
ZTFLH:  TB321  

引用本文:

赵志江; 孙旭东 . 离心成型法制备无宏观界面的Al2O3/Ni功能梯度材料[J]. 中国腐蚀与防护学报, 2007, 27(6): 363-366 .

链接本文:

https://www.jcscp.org/CN/Y2007/V27/I6/363

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