扭转应变谱及其在相变研究中的应用

物理学报

扭转应变谱及其在相变研究中的应用

, ,

吴筱毅, 熊小敏, 张进修. 2012: 扭转应变谱及其在相变研究中的应用, 物理学报, 61(1): 252-256.

引用本文:

吴筱毅, 熊小敏, 张进修. 2012: 扭转应变谱及其在相变研究中的应用, 物理学报, 61(1): 252-256.

2012: Torsion strain spectrum and its application to in phase transformation, Acta Physica Sinica, 61(1): 252-256.

Citation:

2012: Torsion strain spectrum and its application to in phase transformation, Acta Physica Sinica, 61(1): 252-256.

Torsion strain spectrum and its application to in phase transformation

摘要: 试样的扭转应变随外场（温度场、电场、磁场）的变化谱即扭转应变谱可以有效地反映试样对外场的动力学响应行为.研究表明,利用传统倒扭摆可以高精度测量扭变谱,证实了含铅量为32%的弛豫铁电体铌镁酸铅（PMN-32%PT）的四方-立方转变是一种爆发型马氏体相变.
- 扭转应变谱 /
- 内耗 /
- 铁电体 /
- 马氏体相变
Abstract: 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.