Indexed by:期刊论文
Date of Publication:2019-02-01
Journal:JOURNAL OF MATERIALS SCIENCE
Included Journals:SCIE、Scopus
Volume:54
Issue:3
Page Number:1958-1966
ISSN No.:0022-2461
Key Words:Deformation; Fracture; High resolution transmission electron microscopy; Single crystals; Transmission electron microscopy, Compressive strain; Deformation defects; Deformation pattern; Fracture stress; Gallium oxides; Lattice bending; Lattice plane; Micro Pillars, Gallium compounds
Abstract:The deformation of single-crystal beta-phase gallium oxide (or -Ga2O3) micro-pillars under compression was investigated with the aid of transmission electron microscopy. High-density stacking faults were the dominant deformation defects in the plastically deformed micro-pillars. Micro-cracks were found along (200), (001) and (010) lattice planes and fracture occurred along (200) lattice plane when compressive strain was sufficiently great. Lattice bending was also observed in the fractured pillar. The average fracture stress and strain of -Ga2O3 being measured are 7.25 +/- 1.11GPa and 3.80 +/- 0.57%, respectively, which have never been reported previously.
Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Title : 国际磨粒技术学会（International Committee of Abrasive Technology, ICAT）委员，中国机械工程学会极端制造分会副主任、生产工程分会常务委员、微纳米制造技术分会常务委员，中国机械工程学会生产工程分会磨粒加工技术专业委员会副主任、切削加工专业委员会常委委员、精密工程与微纳技术专业委员会常委委员，中国机械工程学会特种加工分会超声加工技术委员会副主任，中国机械工程学会摩擦学分会微纳制造摩擦学专业委员会常务委员，中国机械工业金属切削刀具协会切削先进制造技术研究会常务理事、对外学术交流工作委员会副主任、切削先进制造技术研究会自动化加工技术与系统委员会副主任。
Gender:Male
Alma Mater:西北工业大学
Degree:Doctoral Degree
School/Department:机械工程学院
Discipline:Mechanical Manufacture and Automation. Mechatronic Engineering. Manufacturing Engineering of Aerospace Vehicle
Business Address:机械工程学院7191
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