Nondestructive evaluation of dislocations in iron single crystals by positron annihilation
Technical Report
·
OSTI ID:6749441
A new nondestructive method for determining dislocation density was introduced. The positron lifetime spectrum was analyzed to separate the screw- and edge-dislocation components in pure iron single crystals. The dislocation density measured by the positron annihilation technique was compared with the result of transmission electron microscopy (TEM). Recovery stages in pure iron single crystals were studied using positron-annihilation Doppler broadening.
- Research Organization:
- Northwestern Univ., Evanston, IL (USA)
- OSTI ID:
- 6749441
- Report Number(s):
- AD-A-175560/2/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420500 -- Engineering-- Materials Testing
656002* -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANNIHILATION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
CHEMICAL ANALYSIS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
DENSITY
DISLOCATIONS
DOPPLER EFFECT
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
INTERACTIONS
IRON
LEPTONS
LINE DEFECTS
METALS
MONOCRYSTALS
NONDESTRUCTIVE ANALYSIS
PHYSICAL PROPERTIES
POSITRONS
RECOVERY
SPECTRA
TRANSITION ELEMENTS
420500 -- Engineering-- Materials Testing
656002* -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANNIHILATION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
CHEMICAL ANALYSIS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
DENSITY
DISLOCATIONS
DOPPLER EFFECT
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
INTERACTIONS
IRON
LEPTONS
LINE DEFECTS
METALS
MONOCRYSTALS
NONDESTRUCTIVE ANALYSIS
PHYSICAL PROPERTIES
POSITRONS
RECOVERY
SPECTRA
TRANSITION ELEMENTS