Hydrogen-induced enhancement of interdiffusion in Cu-Ni diffusion couples

被引：81

作者：

Hayashi, E ^{[1
]}

Kurokawa, Y ^{[1
]}

Fukai, Y ^{[1
]}

机构：

[1] Chuo Univ, Dept Phys, Bunkyo Ku, Tokyo 112, Japan

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.80.5588

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Drastic enhancements of the interdiffusion were observed in Cu-Ni diffusion couples when samples were heated under high hydrogen pressures (similar to 5 GPa). Interdiffusion coefficients measured between 600-800 degrees C were increased by similar to 10(4) times on the Ni-rich end and by similar to 10 times on the Cu-rich end. The observation is explained in terms of superabundant vacancy formation in the presence of interstitial hydrogen atoms.

引用

页码：5588 / 5590

页数：3

共 21 条

[1] Hydrogen in aluminum [J].

Birnbaum, HK ;

Buckley, C ;

Zeides, F ;

Sirois, E ;

Rozenak, P ;

Spooner, S ;

Lin, JS .

JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 253 :260-264

[2]

BRUNEL G, 1969, CR ACAD SCI C CHIM, V269, P895

[3]

Cannon J. F., 1974, Journal of Physical and Chemical Reference Data, V3, P781, DOI 10.1063/1.3253148

[4]

EARHART P, 1991, LANDOLTBORNSTEIN, V25, P243

[5] EVIDENCE OF COPIOUS VACANCY FORMATION IN NI AND PD UNDER A HIGH HYDROGEN PRESSURE [J].

FUKAI, Y ;

OKUMA, N .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1993, 32 (9A) :L1256-L1259

[6] FORMATION OF SUPERABUNDANT VACANCIES IN PD HYDRIDE UNDER HIGH HYDROGEN PRESSURES [J].

FUKAI, Y ;

OKUMA, N .

PHYSICAL REVIEW LETTERS, 1994, 73 (12) :1640-1643

[7] Formation of superabundant vacancies in metal hydrides at high temperatures [J].

Fukai, Y .

JOURNAL OF ALLOYS AND COMPOUNDS, 1995, 231 (1-2) :35-40

[8]

FUKAI Y, 1994, T MRS JAP, V18, P1291

[9] Superabundant vacancy formation and its consequences in metal-hydrogen alloys [J].

Fukai, Y ;

Kurokawa, Y ;

Hiraoka, H .

JOURNAL OF THE JAPAN INSTITUTE OF METALS, 1997, 61 (08) :663-670

[10] DIFFUSION OF H2, D2, AND T2 IN SINGLE-CRYSTAL NI AND CU [J].

KATZ, L ;

GUINAN, M ;

BORG, RJ .

PHYSICAL REVIEW B-SOLID STATE, 1971, 4 (02) :330-&

← 1 2 3 →