| 不同晶型纳米氧化锆增韧氧化铝基陶瓷刀具材料研究 |
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| 引用本文： | 钟金豹,黄传真.不同晶型纳米氧化锆增韧氧化铝基陶瓷刀具材料研究[J].工具技术,2010,44(2):23-27. |
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| 作者姓名： | 钟金豹 黄传真 |
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| 作者单位： | 1. 内蒙古科技大学机械工程学院,014010,内蒙古包头市
2. 山东大学 |
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| 基金项目： | 山东省优秀中青年科学家科研奖励基金资助项目(2006BS05013) |
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| 摘 要： | 利用不同晶型纳米氧化锆的相变增韧和纳米颗粒的增韧作用来提高氧化铝基体的综合力学性能。研制成功了纳米ZrO2增韧氧化铝基陶瓷刀具材料A15Zc和A20Z(c+m),在其最佳烧结工艺条件下,A15Zc和A20Z(c+m)材料的抗弯强度、断裂韧度和维氏硬度分别为812.83MPa、5.5MPa.m1/2、16.68GPa和869.48MPa、5.85MPa.m1/2、16.09GPa。刀具的主要增韧机理是相变增韧、裂纹偏转、裂纹弯曲和纳米颗粒的桥连等。
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| 关 键 词： | 相变增韧 增韧补强机理 显微结构 力学性能 |
Study on Different Crystal Nano-Scale Zirconia Toughening Alumina Matrix Ceramic Tool Materials |
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| Zhong Jinbao,Huang Chuanzhen School of Mechanical Engineering,Inner Mongolia Science , Technology University,Baotou,Inner Mongolia ,China.Study on Different Crystal Nano-Scale Zirconia Toughening Alumina Matrix Ceramic Tool Materials[J].Tool Engineering(The Magazine for Cutting & Measuring Engineering),2010,44(2):23-27. |
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| Authors: | Zhong Jinbao Huang Chuanzhen School of Mechanical Engineering Inner Mongolia Science Technology University Baotou Inner Mongolia China |
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| Affiliation: | Zhong Jinbao,Huang Chuanzhen School of Mechanical Engineering,Inner Mongolia Science , Technology University,Baotou,Inner Mongolia 014010,China |
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| Abstract: | Transformation toughening mechanism of zirconia and nano-scale grain toughening mechanisms were used to improve the mechanical properties of alumina matrix ceramic tool materials by adding different crystal nano-scale zirconia into micron-scale alumina matrix. Nano-scale zirconia toughening alumina matrix ceramic tool materials A15Zc and A20Z(c+m) were fabricated successfully. When the optimum fabrication technology is used,their flexural strength,fracture toughness and Vickers hardness are 812.83MPa,5.5Mpa... |
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| Keywords: | transformation toughening toughening and strengthening mechanism microstructure mechanical properties |
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