Open AccessTorsion strain spectrum and its application to in phase transformation
Author(s) -
Xiaoyi Wu,
Xiang Xiong,
Jinxiu Zhang
Publication year - 2012
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.61.014601
Subject(s) - torsion (gastropod) , tetragonal crystal system , materials science , torsion pendulum clock , diffusionless transformation , condensed matter physics , ferroelectricity , martensite , physics , phase (matter) , composite material , dielectric , quantum mechanics , medicine , surgery , microstructure , optoelectronics
Torsion strain spectrum refers to the variation of the torsion strain of a specimen with external field, such as temperature, electric and magnetic fields, which facilitates the research of its dynamic behavior. We demonstrate that a torsion strain spectrum can be achieved in a high accuracy by making use of the conventional inverted torsion pendulum. By measuring its torsion strain spectrum of ferroelectric relaxor PMN-32%PT, we verify that its tetragonal-cubic transformation belongs to a burst-type martensite transformation.