Open AccessSTUDY OF THE STRUCTURAL RELAXATION OF METALLIC GLASS (Fe0.85Ni0.15)84B16 BY MEASURING THE THERMAL EXPANSION AND RESISTANCE UNDER ZERO STRESS
Author(s) -
Yao Ci-Shun,
Cheng Xian-An
Publication year - 1988
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.37.1855
Subject(s) - thermal expansion , materials science , electrical resistivity and conductivity , tungsten , annealing (glass) , relaxation (psychology) , metal , condensed matter physics , electrical resistance and conductance , thermal , thermodynamics , composite material , analytical chemistry (journal) , metallurgy , chemistry , physics , chromatography , social psychology , quantum mechanics , psychology
The dependence of the structural relaxation of the material on the annealing temperature Ta is studied by measuring the difference of thermal elongation △l or that of the electrical resistivity △ρ and that of the thermal expansion coeffcient △α between an as-quenched and an annealed sample. △α/α0 is measured by placing an as-quenched and an annealed sample in juxtaposition and heating them with iodine-tungsten lamps. The samples expand freely and the rsitivity of the as-onerched sample, respeomparator. The experimental results are summarized by three curves, namely △α/α0 vs Ta, △l/l0 vs Ta and △ρ/ρ0 vs Ta, where α0, l0, and ρ0 are the linear expansion coefficient, the length and the resistivity of the as-quenched sample, respec lively. The obtained results are discussed.