氢气渗透Nb基合金的设计及特性表征

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	氢气渗透Nb基合金的设计及特性表征
其他题名	Preparation and Characterization of Hydrogen Permeable Nb-Based Alloys
	Luo Weimin (罗伟民); Yan Changfeng (闫常峰); Ishikawa, Kazuhiro; Aoki, Kiyoshi
	2010-06
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	39 期号:6 页码:5,1045-1049
产权排序	[Luo Weimin (罗伟民); Yan Changfeng (闫常峰)] China Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China; [Ishikawa, Kazuhiro; Aoki, Kiyoshi] Kitami Inst Technol, Kitami, Hokkaido 0908507, Japan
通讯作者	Luo, WM (reprint author), China Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China.
合作性质	国际
其他摘要	Pd-Ag alloy shows high hydrogen permeability and excellent resistance to hydrogen embrittlement, so it is used to separate the products of methane steam reforming to achieve high purity hydrogen. However, Pd is very expensive; therefore it is eagerly desired to develop no-Pd based alloys with low cost and high hydrogen permeation performance. In order to find out Nb-Ti-Ni alloy with higher hydrogen permeability, the Nb-Ti-Ni alloys located at the straight line connecting the primary (Nb, Ti) of Nb40Ti30Ni30 and the eutectic {(Nb,Ti)+TiNi} phases in the Nb-Ti-Ni trinary diagram were prepared. Results show that the alloys located at the straight line consists of the primary (Nb, Ti) and the eutectic {(Nb,Ti)+TiNi} phases, and their hydrogen permeability increase with increasing of Nb content or volume fraction of the primary (Nb,Ti). Moreover, the Nb content increases to 68 mol%. The Nb68Ti17Ni15 alloy, consisting of 74 vol% primary (Nb, Ti) phase and 26 vol% eutectic {(Nb,Ti)+TiNi} phase, show the highest Phi(673K) of 4.91 x 10(-8) mol H(2)m(-1)s(-1)Pa(-0.5), which is 2.5 times as high as that of the Nb40Ti30Ni30, and 3.5 times as high as that of the pure Pd. 在Nb40Ti30Ni30 合金的初生相(Nb,Ti)和共晶相连线上制作Nb-Ti-Ni 合金。研究表明，上述直线上的合金由初生相和共晶相构成，氢渗透度Φ随Nb 浓度和初生相(Nb,Ti)体积分数的增大而升高，氢渗透合金的Nb 浓度扩展至68 mol%。Nb68Ti17Ni15 合金由74%(体积分数)的初生相(Nb,Ti)和26%(体积分数)的共晶相{(Nb,Ti)+TiNi}组成，氢渗透度最大Φ673 K达到4.91×10-8mol H2m-1s-1Pa-0.5，是Nb40Ti30Ni30 合金的氢渗透度Φ673 K 的2.5 倍，纯钯金的氢渗透度Φ673 K 的3.5 倍。
关键词	Hydrogen Permeable Alloy Nb-based Alloy Hydrogen Permeability Microstructure Permeation Characteristics Membranes Separation 氢渗透合金 Nb基合金氢渗透度微观组织
学科领域	Materials Science ; Metallurgy & Metallurgical Engineering
收录类别	SCI ; CSCD
语种	中文
项目资助者	广东省自然科学基金资助项目(8451007006000933); 广东省关键领域重点突破科技计划项目(20070109-1 & 2007A010701001);广州市科技计划项目(2006J1-C0421)
引用统计
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/8530
专题	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Luo Weimin (罗伟民),Yan Changfeng (闫常峰),Ishikawa, Kazuhiro,等. 氢气渗透Nb基合金的设计及特性表征[J]. RARE METAL MATERIALS AND ENGINEERING,2010,39(6):5,1045-1049.
APA	Luo Weimin ,Yan Changfeng ,Ishikawa, Kazuhiro,&Aoki, Kiyoshi.(2010).氢气渗透Nb基合金的设计及特性表征.RARE METAL MATERIALS AND ENGINEERING,39(6),5,1045-1049.
MLA	Luo Weimin ,et al."氢气渗透Nb基合金的设计及特性表征".RARE METAL MATERIALS AND ENGINEERING 39.6(2010):5,1045-1049.