Ferroelastic shear bands in Pb3(PO4)2

被引：9

作者：

Li, Suzhi ^{[1
]}

Bismayer, Ulli ^{[2
]}

Ding, Xiangdong ^{[1
]}

Salje, Ekhard K. H. ^{[1
,3
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[2] Univ Hamburg, Mineral Petrog Inst, Grindelallee 48, D-20146 Hamburg, Germany

[3] Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England

来源：

APPLIED PHYSICS LETTERS | 2016年 / 108卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

ATOMIC-FORCE MICROSCOPY; SINGLE-CRYSTAL; MOLECULAR-DYNAMICS; LEAD PHOSPHATE; AFM; DOMAINS; NANOINDENTATION; TEMPERATURE; PB3(PO4)2; SURFACE;

D O I：

10.1063/1.4939853

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report shear bands as a precursor structure of deformation twinning in Pb-3(PO4)(2). Atomic force microscopy shows "slip-line" like traces on the surface of untwinned regions of the sample. The traces are shear bands oriented along twin boundaries of the ferroelastic R (3) over barm-C2/c transition. Computer simulations reproduce the shear band patterns and show that each shear band is a precursor embryo of a twin wall that forms under higher shear stress. This observation reveals the structural origin of twin boundaries under stress conditions just before ferroelastic switching occurs. (C) 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.

引用

页数：4

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