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Al2O3颗粒形貌对注凝成型ZrO2/Al2O3陶瓷性能的影响

, PP. 416-422

Keywords: 注凝成型,黏度,Al2O3,颗粒形貌,ZrO2/Al2O3陶瓷

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Abstract:

采用3种不同形貌的Al2O3原料对注凝成型制备ZrO2/Al2O3(ZTA)陶瓷工艺中悬浮体的流变性能进行了研究。以低毒的单体N,N-二甲基丙烯酰胺(DMAA)制备了ZrO2/Al2O3坯体和陶瓷。讨论了3种不同形貌的Al2O3原浆料的分散剂用量、球磨时间和固含量对浆料流变性的影响。Al2O3粉体呈扁平状有利于降低浆料的黏度,Al2O3粉体呈棒状对生坯强度的提高有利。制得的3种ZrO2/Al2O3坯体颗粒间结合紧密,抗弯强度分别达到21.45,19.87,25.90MPa。Al2O3粉体呈颗粒状有利于最终陶瓷力学性能的提高,陶瓷的抗弯强度及断裂韧性分别为680MPa和7.49MPa·m1/2,453.1MPa和6.8MPa·m1/2,549.4MPa和6.34MPa·m1/2。

References

[1]  吴 皓, 蒋丹宇, 张 骋, 等.钇稳定四方氧化锆精细陶瓷老化性能检测方法的研究[J].硅酸盐通报, 2010, 29(3): 747-750. Wu Hao, Jiang Danyu, Zhang Chi, et al. Study of determination method of Y-TZP fine ceramics aging behavior[J]. Bulletin of the Chinese Ceramic Society, 2010, 29(3): 747-750.
[2]  郭瑞松, 杨正方, 袁启明, 等.复合助剂对ZTA陶瓷烧结性的影响[J].硅酸盐学报, 1999, 27(2): 258-263. Guo Ruisong, Yang Zhengfang, Yuan Qiming, et al.Influences of complex sintering aids on sinterability of ZTA ceramics[J].Journal of the Chinese Ceramic Society, 1999, 27(2): 258-263.
[3]  Liu X L, Huang Y, Yang J L. Effect of rheological properties of the suspension on the mechanical strength of Al2O3-ZrO2 composites prepared by gelcasting[J].Ceramics International, 2002, 28(2): 159-164.
[4]  谢志鹏, 李建保, 张 锐, 等. Ce-Y-ZTA复相陶瓷的微波烧结[J].复合材料学报, 1998, 15(2):48-52. Xie Zhipeng, Li Jianbao, Zhang Rui, et al. The microwave sintering of Ce-Y-ZTA composites[J]. Acta Materiae Compositae Sinica, 1998, 15(2): 48-52.
[5]  焦宝祥, 李纯成, 丘 泰, 等.注凝成型制备ZTA复相陶瓷[J].复合材料学报, 2004, 21(6): 125-129. Jiao Baoxiang, Li Chuncheng, Qiu Tai, et al. ZTA composites prepared by gelcasting[J]. Acta Materiae Compositae Sinica, 2004, 21(6): 125-129.
[6]  于庆华, 王介强, 郑少华, 等. 液相沉淀法制备ZTA纳米复相陶瓷[J].复合材料学报, 2006, 23(3): 108-113. Yu Qinghua, Wang Jieqiang, Zheng Shaohua, et al. Preparation of ZTA nanoceramic composites by liquid-phase precipitation method[J]. Acta Materiae Compositae Sinica, 2006, 23(3): 108-113.
[7]  张 超, 丘 泰.低毒单体DMAA用于ZrO2/Al2O3坯体注凝成型[J].复合材料学报, 2012, 29(1): 79-84. Zhang Chao, Qiu Tai.Fabrication of ZrO2/Al2O3 green body through gelcasting process using low-toxicity monomer DMAA[J]. Acta Materiae Compositae Sinica, 2012, 29(1): 79-84.
[8]  Young A C, Omatete O O, Janney M A, et al.Gelcasting of alumina[J]. Journal of the American Ceramic Society, 1991, 74 (3): 612-618.
[9]  Omatete O O, Janney M A, Strehlow R A. Gelcasting: A new ceramic forming process[J]. Ceram Bull, 1991, 70(10): 1641-1649.
[10]  Omatete O O, Janney M A, Nunn S D.Gelcasting: From laboratory development toward industrial production[J]. Journal of European Ceramic Society, 1997, 17(2): 407-413.
[11]  Janney M A, Omatete O O. Gelcasting of ceramic: US Patent, 5145908[P].1992-05-12.
[12]  Janney M A. Method for molding ceramic powders: US Patent, 4894194[P].1990-03-15.
[13]  Midmore B R, Pratt G V, Herrington T M. Evidence for the validity of electrokinetic theory in the thin double layer region[J]. Colloid and Interface Science, 1996, 184(1): 170-174.
[14]  张立明.陶瓷悬浮液流变特及胶态成型坯体缺陷的控制[D].北京: 清华大学, 2005. Zhang Liming. Rheological behaviors of ceramic suspensions and inhibition of flaws in colloidal formed green bodies[D]. Beijing: Tsinghua University, 2005.

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