THE POSITRON TRAPPING EFFICIENCY OF DISLOCATIONS IN DEFORMED DILUTE ALUMINUM-ALLOYS

被引：21

作者：

HASHIMOTO, E

IWAMI, M

UEDA, Y

机构：

[1] Lab. of Crystal Phys., Hiroshima Univ.

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1994年 / 6卷 / 08期

关键词：

D O I：

10.1088/0953-8984/6/8/019

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Positron-lifetime measurements have been made on deformed Al-0.01 at.% Mg, Al-0.01 at.% Si and Al-0.01 at.% Cu alloys at room temperature. The specific trapping rate mu(d) of positrons into dislocations depends strongly on alloying elements. Mg and Cu atoms can reduce mu(A)d to a great extent, while Si atoms are not so effective. These results are closely related to the pinning of dislocations by solute atoms.

引用

页码：1611 / 1616

页数：6

共 11 条

[1] EFFECTS OF IMPURITIES ON THE POSITRON TRAPPING EFFICIENCY OF DISLOCATIONS IN DEFORMED ALUMINUM [J].

HASHIMOTO, E ;

IWAMI, M ;

UEDA, Y .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1993, 5 (12) :L145-L148

[2] TEMPERATURE-DEPENDENCE OF POSITRON TRAPPING TO DISLOCATIONS IN ALUMINUM [J].

HASHIMOTO, E ;

KINO, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1991, 60 (09) :3167-3171

[3]

HIKI Y, 1982, 5TH P YAM C POINT DE, P753

[4] POSITRONIUM-LIKE POSITRON STATES IN HE BUBBLES IN 600-MEV PROTON-IRRADIATED AL [J].

JENSEN, KO ;

ELDRUP, M ;

SINGH, BN ;

LINDEROTH, S ;

BENTZON, MD .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1988, 18 (06) :1091-1108

[5] DEVIATIONS FROM MATTHIESSENS-RULE OF ELECTRICAL RESISTIVITY OF DISLOCATIONS IN ALUMINUM [J].

KINO, T ;

ENDO, T ;

KAWATA, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1974, 36 (03) :698-705

[6] POSITRONFIT EXTENDED - NEW VERSION OF A PROGRAM FOR ANALYZING POSITRON LIFETIME SPECTRA [J].

KIRKEGAARD, P ;

ELDRUP, M .

COMPUTER PHYSICS COMMUNICATIONS, 1974, 7 (07) :401-409

[7] DISLOCATION-SOLUTE INTERACTION STUDIED BY AMPLITUDE-DEPENDENT INTERNAL-FRICTION IN AL-0.01 AT-PERCENT-SI ALLOY [J].

KOSUGI, T ;

KINO, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1984, 53 (11) :3837-3842

[8] ULTRASONIC STUDY OF THE INTERACTION POTENTIAL BETWEEN A DISLOCATION AND A SINGLE SOLUTE-ATOM [J].

KOSUGI, T ;

KINO, T .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1993, 164 (1-2) :316-321

[9]

NIEMINEN RM, 1979, POSITRONS SOLIDS, P89

[10] AN ALTERNATIVE INTERPRETATION OF POSITRON-ANNIHILATION IN DISLOCATIONS [J].

SMEDSKJAER, LC ;

MANNINEN, M ;

FLUSS, MJ .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1980, 10 (10) :2237-2249

← 1 2 →