| 用新型发泡剂--氢化混合稀土制备泡沫铝的研究 |
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| 引用本文： | 严富学,赵康,谷臣清. 用新型发泡剂--氢化混合稀土制备泡沫铝的研究[J]. 中国稀土学报, 2005, 23(2): 186-189 |
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| 作者姓名： | 严富学 赵康 谷臣清 |
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| 作者单位： | 西安理工大学材料科学与工程学院,陕西,西安,710048 |
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| 基金项目： | 陕西省自然科学基金 (2000C32)和陕西省教育厅产业化培育项目 (02JC35) |
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| 摘 要： | 研究了混合稀土的氢化工艺和以其作为一种新型发泡剂制备泡沫铝的方法与机制。实验采用熔体发泡法制备闭孔泡沫铝，并与氢化钛(TiH2)作发泡剂制备泡沫铝进行对比实验。结果表明：混合稀土氢化物(REHx)发泡剂的特点是起始发泡温度高，能较显著的延缓气体的释放速率，促使发泡均匀化。经过发泡工艺的优化，以其制备的泡沫铝与用氢化钛(TiH2)做发泡剂相比较，在相同孔隙率条件下，泡沫铝的抗压缩强度有明显提高。
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| 关 键 词： | 稀土氢化物 泡沫铝 发泡剂 稀土 |
| 文章编号： | 1000-4343(2005)02-0186-04 |
Fabrication of Foamed Aluminum by a New Vesicant-Mixed Rare Earths Hydride |
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| Yan Fuxue,ZHAO Kang,GU Chenqing. Fabrication of Foamed Aluminum by a New Vesicant-Mixed Rare Earths Hydride[J]. Journal of the Chinese Society of Rare Earths, 2005, 23(2): 186-189 |
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| Authors: | Yan Fuxue ZHAO Kang GU Chenqing |
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| Affiliation: | Yan Fuxue~*,Zhao Kang,Gu Chenqing |
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| Abstract: | The preparation and foaming mechanism of a new vesicant-mixed rare earths hydride were investigated. The closed cell aluminum by foaming method of molten aluminum was produced. The result obtained is as follows: compared with TiH_2, REH_x has higher decomposition temperature and the gas releasing velocity is postponed obviously, which make the pores more homogenized. As the same porosity, the compressive strength of foaming aluminum has increased significantly. |
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| Keywords: | rare earths hydride foaming aluminum vesicant rare earths |
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