Defect characterization with positron annihilation. [Review]

Conference · Tue Jan 01 00:00:00 EST 1980

OSTI ID:6672802

Granatelli, L; Lynn, K G

Positron annihilation in metal crystals is reviewed. A brief introduction to the positron annihilation technique is presented first. Then the ability of the positron technique to perform microstructural characterization of four types of lattice defects (vacancies, voids, dislocations, grain boundaries) is discussed. It is frequently not possible to obtain samples that contain only one type of defect in nonnegligible concentrations. Such situations exist for some alloys and for fatigued metal samples. Finally, the current limitations and some future prospects of the technique are presented. 79 references, 14 figures, 1 table. (RWR)

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6672802
• Report Number(s): BNL-28795; CONF-8010157-1; TRN: 81-004430
• Resource Relation: Conference: Symposium on nondestructive evaluation, Pittsburgh, PA, USA, 20 Oct 1980
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
74 ATOMIC AND MOLECULAR PHYSICS
ALLOYS
CRYSTAL DEFECTS
METALS
ALUMINIUM ALLOYS
ANNIHILATION
COPPER ALLOYS
IRON
MICROSTRUCTURE
MOLYBDENUM
NICKEL
POSITRONS
REVIEWS
ZINC
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
CRYSTAL STRUCTURE
DOCUMENT TYPES
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
INTERACTIONS
LEPTONS
REFRACTORY METALS
TRANSITION ELEMENTS
656000* - Condensed Matter Physics
360102 - Metals & Alloys- Structure & Phase Studies
640303 - Atomic
Molecular & Chemical Physics- Positronium
Muonium
& Muonic & Mesic Atoms & Molecules