利用粉末冶金方法制备氧化铝-铝金属陶瓷材料,研究其烧结工艺对其性能影响.结果表明,烧结温度从700℃逐渐升到1000℃且保温1h的条件下,Al2O3/Al金属陶瓷的显微结构致密化程度逐渐降低,硬度逐渐降低,电阻率逐渐升高.在显微结构中颗粒呈连续分布且较大的为金属Al,颗粒呈不连续分布较且细小的为Al2O3.在700℃温度下,随保温时间延长,其显微结构组织越致密,硬度越高,电阻率越低.在700℃烧结3h制备得到25 mass％ Al2O3/Al金属陶瓷,其显微结构致密化程度较高,硬度为2203 HV,电阻率为0.0159 Ω·m.
参考文献
| [1] | 马向平,王书义,陈威,骆清国.金属陶瓷在高温下的变形规律[J].北京科技大学学报,2007(02):220-225. |
| [2] | 赵中里,安林,吴大鸣,韩静涛.Zr02（3Y）／WC-20％Co金属陶瓷复合材料的耐磨性[J].材料热处理学报,2012(01):26-30. |
| [3] | Das S;Datta S;Mukhopadhyay A K .Al-Al2O3 core-shell composite by microwave induced oxidation of aluminium powder[J].Materials Chemistry and Physics,2010,122(02):574-581. |
| [4] | Al-Qutub AM;Allam IM;Samad MAA .Wear and friction of Al-Al2O3 composites at various sliding speeds[J].Journal of Materials Science,2008(17):5797-5803. |
| [5] | 李芸,王少海,王忠义,张少锋,丁秉钧.Al2O3/Ag金属陶瓷的制备与研究[J].稀有金属材料与工程,2007(04):740-743. |
| [6] | 李洪涛,张文清.金属/陶瓷界面的第一原理热力学研究[J].中国材料进展,2009(03):13-16. |
| [7] | Razavi-Tousi, S.S.;Yazdani-Rad, R.;Manafi, S.A. .Effect of volume fraction and particle size of alumina reinforcement on compaction and densification behavior of Al-Al_2O_3 nanocomposites[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2011(3):1105-1110. |
| [8] | 祝力伟,赵慨,邱家稳,冯煜东,王艺,王志民,速小梅.新型热控涂层Al-Al2O3金属陶瓷复合膜制备与性能研究[J].真空与低温,2008(04):219-222. |
| [9] | Rahimian M;Parvin N;Ehsani N .The effect of production parameters on microstructure and wear resistance of powder metallurgy Al-Al2O3 composite[J].Materials and Design,2011,32(02):1031-1038. |
| [10] | 郑梦,赵玉涛,陈登斌,张钊,董洪标.原位纳米Al2O3颗粒增强铝基复合材料的制备与微结构研究[J].功能材料,2011(z4):748-750,754. |
| [11] | Dikici B;Gavgali M .The effect of sintering time on synthesis of in situ submicron a-Al2O3 particles by the exothermic reactions of CuO particles in molten pure Al[J].Journal of Alloys and Compounds,2013,551(02):101-107. |
| [12] | Pournaderi S;Mahdavi S;Akhlaghi F .Fabrication of Al/Al2O3 composites by in-situ powder metallurgy (IPM)[J].Powder Technology,2012,229(10):276-284. |
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