Published August 2006 | Version v1
Journal article Metadata-only

Evolution of free volume in annealed Fe-Mo-Cu-B-type alloy studied by positron annihilation

Creators

  • 1. Department of Nuclear Physics and Technology, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, 81219 Bratislava (Slovakia)

Description

Positron annihilation lifetime spectroscopy (PALS) has been applied to study the microstructural changes in NANOPERM type metallic Fe76Mo8Cu1B15 alloy after heat treatment. Samples in as-quenched state were isothermally annealed at five chosen temperatures in the range between 330 and 700 grad C for 1 hour annealing time. The decrease of excess free volume in the as-quenched structure upon annealing is well observed by a decrease of positron lifetime. The combination of PALS with other experimental methods (in particular magnetic measurements) have shown that minimum of free volume found in sample annealed at 550 grad C coincides with the temperature at which superior magnetic properties are observed. (authors)

Additional details

Identifiers

URL
http://iris.elf.stuba.sk/JEEEC/rtoc.html;

Publishing Information

Journal Title
Journal of Electrical Engineering
Journal Volume
57
Journal Issue
4
Journal Page Range
p. 238-240
ISSN
1335-3632

INIS

Country of Publication
Slovakia
Country of Input or Organization
Slovakia
INIS RN
41083533
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANNEALING; ANNIHILATION; BORON ALLOYS; COPPER ALLOYS; EXPERIMENTAL DATA; IRON BASE ALLOYS; LIFETIME; MAGNETIC PROPERTIES; MOLYBDENUM ALLOYS; NANOSTRUCTURES; NUCLEAR PHYSICS; POSITRONIUM; POSITRONS; SODIUM 22; SPECTROSCOPY; TIME MEASUREMENT
Descriptors DEC
ALLOYS; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; DATA; ELEMENTARY PARTICLES; FERMIONS; HEAT TREATMENTS; INFORMATION; INTERACTIONS; IRON ALLOYS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LEPTONS; LIGHT NUCLEI; MATTER; NANOSECONDS LIVING RADIOISOTOPES; NUCLEI; NUMERICAL DATA; ODD-ODD NUCLEI; PARTICLE INTERACTIONS; PHYSICAL PROPERTIES; PHYSICS; RADIOISOTOPES; SODIUM ISOTOPES; TRANSITION ELEMENT ALLOYS; YEARS LIVING RADIOISOTOPES

Optional Information

Contract/Grant/Project number
Project APVT-20-008404
Notes
3 figs.; 15 refs.