| 造孔剂法制备多孔镍及其性能 |
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| 引用本文： | 王红伟,李永华,郑庆松,陈小龙. 造孔剂法制备多孔镍及其性能[J]. 粉末冶金工业, 2023, 33(1): 78-83. DOI: 10.13228/j.boyuan.issn1006-6543.20220033 |
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| 作者姓名： | 王红伟 李永华 郑庆松 陈小龙 |
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| 作者单位： | （. 南京尚吉增材制造研究院有限公司，江苏南京210046； . 南京工业大学材料科学与工程学院，江苏南京211816） |
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| 摘 要： | 添加氯化钠作为造孔剂，采用粉末冶金方法制备高孔隙率小孔径多孔镍。对多孔镍的孔隙特征、力学性能进行了研究。结果表明：通过调整造孔剂比例、烧结温度及冷却时间工艺参数，可以制备出孔隙率为60.84%～64.92%，平均孔径为0.20～8.80μm，小于20μm孔径占比为92.0%～96.1%，压缩屈服强度为8.9～13.4 MPa的多孔镍；随着烧结后冷却时间的增加，平均孔径减小，压缩强度呈增加趋势。
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| 关 键 词： | 多孔镍 氯化钠 孔隙率 孔径分布 力学性能 |
Preparation and properties of porous nickel by space-holder-method |
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| WANG Hongwei,LI Yonghua,ZHENG Qingsong,CHEN Xiaolong. Preparation and properties of porous nickel by space-holder-method[J]. Powder Metallurgy Industry, 2023, 33(1): 78-83. DOI: 10.13228/j.boyuan.issn1006-6543.20220033 |
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| Authors: | WANG Hongwei LI Yonghua ZHENG Qingsong CHEN Xiaolong |
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| Affiliation: | （.Shangi Institute For Advanced Materials（Nanjing）CO., LTD. Nanjing Jiangsu 210046. China； . NanjingTech University Nanjing Jiangsu 211816. China） |
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| Abstract: | Porous nickel with high porosity and small pore was fabricated by powder metallurgy which was calledspace-holder-method and adding sodium chloride（NaCl）. The pore structures and mechanical properties wereexamined. The results show that by Adjusting the proportion of space-holder, sintering temperature and coolingtime, porosity of sample was 60.84%~64.92%, the mean pore size was 0.20-8.80 μm with the proportion of over 20μm occupying 92.0%~96.1%, compressive strength was 8.9-13.4 MPa. The mean pore size decreases correspondinglywith increase of cooling time, but the compressive strength take on the trend of increase. |
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| Keywords: | porous nickel NaCl porosity pore size distribution mechanical property |
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