| 以ZrH_2为发泡剂的泡沫铝制备和表征 |
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| 引用本文： | 李大武,李杰,李涛,孙挺,张小明,姚广春.以ZrH_2为发泡剂的泡沫铝制备和表征[J].中国有色金属学会会刊,2011(2):346-352. |
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| 作者姓名： | 李大武 李杰 李涛 孙挺 张小明 姚广春 |
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| 作者单位： | 东北大学理学院化学系;中国刑警学院痕迹检验技术系;东北大学材料与冶金学院教育部材料先进制备技术工程研究中心; |
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| 基金项目： | Project (2004AA33G060) supported by the National High-tech Research and Development Program of China |
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| 摘 要： | 使用氢化锆为发泡剂,通过熔体发泡法制备泡沫铝并研究其影响因素。制备工艺为：添加0.6%-1.4%的发泡剂,1.5%-3.0%Ca（质量分数）作为增粘剂,发泡温度933-1013K,搅拌时间为0.5-2.5min和保温时间为1.5-4.0min。利用XRD和SEM对泡沫铝样品进行表征,测试其力学性能。结果表明,在合适的工艺参数下能制备出孔径均匀的泡沫铝,采用氢化锆为发泡剂可以制备出平均孔径为1mm左右的泡沫铝。金属间化合物和Al2O3的存在影响熔体的粘度。泡沫铝的力学性能经历线弹性区、平台区和致密化区并表现出较高的能量吸收效率。
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| 关 键 词： | 泡沫铝 氢化锆 气泡 熔体发泡法 |
Preparation and characterization of aluminum foams with ZrH_2 as foaming agent |
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| LI Da-wu,LI Jie,LI Tao,SUN Ting,ZHANG Xiao-ming,YAO Guang-chun.Preparation and characterization of aluminum foams with ZrH_2 as foaming agent[J].Transactions of Nonferrous Metals Society of China,2011(2):346-352. |
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| Authors: | LI Da-wu LI Jie LI Tao SUN Ting ZHANG Xiao-ming YAO Guang-chun |
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| Affiliation: | LI Da-wu1,2,LI Jie1,LI Tao1,SUN Ting1,ZHANG Xiao-ming3,YAO Guang-chun3 1. Department of Chemistry,College of Science,Northeastern University,Shenyang 110004,China,2. Forensic Science & Technology Department,China Criminal Police University,Shenyang 110854,3. Engineering and Researching Centre of Advanced Preparation Technology of Materials,School of Materials and Metallurgy,Northe astern University |
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| Abstract: | Aluminum foams were fabricated by melt-based route using ZrH2 as a foaming agent. The factors which affected the foaming of aluminum foams during casting process were investigated. The powdered zirconium hydride with content of 0.6%-1.4% (mass fraction) was added to the molten pure aluminum and the foaming condition was controlled in a temperature range from 933 to 1 013 K, Ca amount of 1.5%-3.0% (mass fraction), stirring time of 0.5-2.5 min and holding time of 1.5-4.0 min to obtain homogeneous aluminum foa... |
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| Keywords: | aluminum foams zirconium hydride bubble melt-based route |
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