Application of Pressureless Infiltration Technique for Processing and Characterizing Properties of 3-3 Al(Mg)/ZrO2 Composites

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• 作者：Ali Foroughi (1) (2)
  Morteza Tamizifar (3)
  Hossein Razavi (3)
  Mohammad H. Aghaei (3)
  Hassan Sharifi (3)
  
• 关键词：Metal matrix composites ; ZrO2 foam ; Pressureless infiltration ; Electrical conductivity ; Hardness
• 刊名：Arabian Journal for Science and Engineering
• 出版年：2014
• 出版时间：June 2014
• 年：2014
• 卷：39
• 期：6
• 页码：4991-4996
• 全文大小：
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• 作者单位：Ali Foroughi (1) (2)
  Morteza Tamizifar (3)
  Hossein Razavi (3)
  Mohammad H. Aghaei (3)
  Hassan Sharifi (3)
  
  1. Department of Materials and Metallurgical Engineering, Islamic Azad University (allame), Majlesi Branch (MBIAU), Majlesi, Isfahan, Iran
  2. Department of Technical Inspection, Pars Oil and Gas Company (POGC), Tehran, Iran
  3. Department of Materials and Metallurgical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran
  

文摘

3-3 Al(Mg)/ZrO2 composites based on Al–Mg alloy reinforced by ceramic interpenetrating network structure were fabricated via pressureless infiltration technology. Infiltration temperature and infiltration atmosphere are the key parameters distinctly effecting on infiltration processes. The composites were produced at atmospheric pressure by infiltrating 2-0 wt% magnesium content Al–Mg alloys into 25 % dense ZrO2 foams with highly interconnected porosity. The processing parameters of temperature ≥?90?°C, and atmosphere, flowing N2–Ar, were investigated to determine the processing window. Moreover, the increasing of Mg content (2-0 wt%) resulted in an increased amount of infiltration. The observation of the process shows that infiltration is faster at higher temperatures and N2 partial pressures. Both optical and scanning electron microscopy have been used to characterize the composites. Electrical conductivity of composite reduces with increasing of Mg content in matrix and volume fraction of reinforcement. The use of ZrO2 preform with low cell size in composite results in the increase in hardness of Al–Mg/ZrO2 composite.