Phase-pure bulk BC8 silicon prepared through secondary phase transition method under high pressure

doi:10.1016/j.matlet.2019.127195

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Phase-pure bulk BC8 silicon prepared through secondary phase transition method under high pressure
	Li, X ; Li, ZG ; Yang, K ; He, DW
刊名	MATERIALS LETTERS
	2020
卷号	262 页码:-
ISSN号	0167-577X
DOI	10.1016/j.matlet.2019.127195
文献子类	期刊论文
英文摘要	Phase-pure bulk samples of silicon in the body-centered cubic structure (BC8-Si) were prepared via secondary phase transition method under high pressure and room temperature. The bulk samples of BC-Si, with diameter of 3 mm and thickness of 0.5 mm, were synthesized via high-pressure phase transitions of single crystal silicon using the large volume cubic press. The formation mechanism of phase-pure BC8-Si via phase transitions of normal single crystal silicon was investigated using in situ synchrotron X-ray diffraction. The phase-pure BC8-Si was observed through primary phase transition under hydrostatic high-pressure condition. However, the secondary phase transformation was needed to obtain the phase-pure BC8-Si sample at non-hydrostatic compression using the large volume cubic press. The structure and purity of bulk BC8-Si were verified using powder X-ray diffraction, Raman spectroscopy, and energy dispersive spectra. Our experimental results show that the secondary phase transformation method under high pressure is an effective way for phase-pure bulk sample preparation of BC8-Si, which provides an opportunity for further studies of its intrinsic physical properties. (C) 2019 Elsevier B.V. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/33061]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Peoples R China 2.China Acad Engn Phys, Inst Fluid Phys, Natl Key Lab Shock Wave & Detonat Phys Res, Mianyang 621900, Sichuan, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 4.Sichuan Univ, Key Lab High Energy Dens Phys & Technol, Minist Educ, Chengdu 610065, Peoples R China
推荐引用方式 GB/T 7714	Li, X,Li, ZG,Yang, K,et al. Phase-pure bulk BC8 silicon prepared through secondary phase transition method under high pressure[J]. MATERIALS LETTERS,2020,262:-.
APA	Li, X,Li, ZG,Yang, K,&He, DW.(2020).Phase-pure bulk BC8 silicon prepared through secondary phase transition method under high pressure.MATERIALS LETTERS,262,-.
MLA	Li, X,et al."Phase-pure bulk BC8 silicon prepared through secondary phase transition method under high pressure".MATERIALS LETTERS 262(2020):-.