Protium diffusion in LaNi5 alloy

被引：2

作者：

Asano, K ^{[1
]}

Tabata, T ^{[1
]}

Yamazaki, Y ^{[1
]}

Iijima, Y ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF THE JAPAN INSTITUTE OF METALS | 2001年 / 65卷 / 09期

关键词：

protium; diffusion; lanthanum-nickel alloy; desorption; trapping;

D O I：

10.2320/jinstmet1952.65.9_803

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Diffusion of protium in the alpha phase (solid solution), the alpha' phase (alpha phase dehydrided from the beta phase) and the beta phase (hydride) of LaNi5-H alloys was studied by the desorption method. It was observed that the diffusion coefficient of protium in the beta phase was a little higher than that in the alpha phase and that these were much higher than that in the alpha' phase. The difference between the diffusion coefficients in the three phases is attributed to the difference in the protium concentration between the alpha phase and the beta phase and to the difference in the trapping density between the alpha phase and the alpha' phase.

引用

页码：803 / 806

页数：4

共 18 条

[1]

Asano S., 1974, Journal of the Japan Institute of Metals, V38, P626

[2] DEFECT TRAPPING OF ION-IMPLANTED DEUTERIUM IN NICKEL [J].

BESENBACHER, F ;

BOTTIGER, J ;

MYERS, SM .

JOURNAL OF APPLIED PHYSICS, 1982, 53 (05) :3536-3546

[3] NMR-STUDIES OF HYDROGEN DIFFUSION IN BETA-LANI5-YALY HYDRIDES [J].

BOWMAN, RC ;

GRUEN, DM ;

MENDELSOHN, MH .

SOLID STATE COMMUNICATIONS, 1979, 32 (07) :501-506

[4] IMMEDIATE POSTOPERATIVE SEIZURES - INCIDENCE AND COMPUTED TOMOGRAPHIC FINDINGS [J].

FUKAMACHI, A ;

KOIZUMI, H ;

NUKUI, H .

SURGICAL NEUROLOGY, 1985, 24 (06) :671-676

[5] STUDY OF DIFFUSION OF HYDROGEN IN LANI-5+XH-6 COMPOUNDS BY H-1 NMR RELAXATION [J].

HALSTEAD, TK ;

ABOOD, NA ;

BUSCHOW, KHJ .

SOLID STATE COMMUNICATIONS, 1976, 19 (05) :425-428

[6] PROTON NMR-STUDIES OF LANTHANUM NICKEL HYDRIDE - STRUCTURE AND DIFFUSION [J].

HALSTEAD, TK .

JOURNAL OF SOLID STATE CHEMISTRY, 1974, 11 (02) :114-119

[7] HYDROGEN DIFFUSION IN BETA-LANI5 HYDRIDE [J].

KARLICEK, RF ;

LOWE, IJ .

SOLID STATE COMMUNICATIONS, 1979, 31 (03) :163-165

[8]

KHODOSOV EF, 1977, PHYS MET METALLOGR, V44, P178

[9] STUDY OF THE DIFFUSION OF HYDROGEN IN POTENTIAL HYDROGEN STORAGE MATERIALS [J].

LEBSANFT, E ;

RICHTER, D ;

TOPLER, JM .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-WIESBADEN, 1979, 116 :175-183

[10] Nuclear magnetic resonance studies of hydrogen diffusion in LaNi5.0H6.0 and LaNi4.8Sn0.2H5.8 [J].

Majer, G ;

Kaess, U ;

Bowman, RC .

PHYSICAL REVIEW B, 1998, 57 (21) :13599-13603

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