| Al2O3添加量对Y—TZP陶瓷烧结及力学性能的影响 |
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| 引用本文： | 徐明霞,段仁官.Al2O3添加量对Y—TZP陶瓷烧结及力学性能的影响[J].硅酸盐通报,1997,16(4):40-42. |
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| 作者姓名： | 徐明霞 段仁官 |
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| 作者单位： | 天津大学材料系 |
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| 摘 要： | 研究了Ａｌ２Ｏ３添加量对Ｙ－ＴＺＰ陶瓷烧结及力学性能的影响，结果表明，微量Ａｌ２Ｏ３可固溶于ＺｒＯ２中而提高材料致密度，使Ｙ－ＴＺＰ的强度、耐磨性等力学性能也同时得到提高，过量Ａｌ２Ｏ３处ＺｒＯ２晶界上阻碍致密化，２０ｗｔ％Ａｌ２Ｏ３，１５５０℃，４ｈ未能烧结，使各项力学性能明显下降。
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| 关 键 词： | 力学性能 耐磨性 氧化铝 陶瓷 Y－TZP陶瓷 烧结 |
Effects of Al 2O 3 Content on the Sinterability and Mechanical Properties of Y-TZP Ceramics |
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| Xu Mingxia,Duan Renguan.Effects of Al 2O 3 Content on the Sinterability and Mechanical Properties of Y-TZP Ceramics[J].Bulletin of the Chinese Ceramic Society,1997,16(4):40-42. |
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| Authors: | Xu Mingxia Duan Renguan |
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| Affiliation: | Tianjin University |
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| Abstract: | The effects of Al 2O 3 content on the sinterability and mechanical properties of Y-TZP ceramics were studied. The results showed that 0.5wt% Al 2O 3 addition raised the density of Y-TZP materials because small amount of Al 2O 3 was soluble in the Y-TZP.At the same time,the bending strength,fracture toughness,Vicker's hardness,Young's modulus and abrasion resistance of the Y-TZP were raised.But excessive amount of Al 2O 3 was located at the boundary of ZrO 2 grains and hindered the densification of the Y-TZP under the same sintering condition.When 20wt% amount of Al 2O 3 was added,the relative density of the sintered body only reached 92.4%. As a result,mechanical properties mentioned above decreased obviously. |
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| Keywords: | Al 2O 3 addition Y-TZP mechanical properties abrasion resistance |
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