Plane shock loading on mono- and nano-crystalline silicon carbide

被引：22

作者：

Branicio, Paulo S. ^{[1
,2
,3
,4
]}

Zhang, Jingyun ^{[5
,6
]}

Rino, Jose P. ^{[7
]}

Nakano, Aiichiro ^{[2
,3
,4
]}

Kalia, Rajiv K. ^{[2
,3
,4
]}

Vashishta, Priya ^{[2
,3
,4
]}

机构：

[1] Univ Southern Calif, Mork Family Dept Chem Engn & Mat Sci, Los Angeles, CA 90089 USA

[2] Univ Southern Calif, Collaboratory Adv Comp & Simulat, Dept Chem Engn & Mat Sci, Los Angeles, CA 90089 USA

[3] Univ Southern Calif, Collaboratory Adv Comp & Simulat, Dept Phys & Astron, Los Angeles, CA 90089 USA

[4] Univ Southern Calif, Collaboratory Adv Comp & Simulat, Dept Comp Sci, Los Angeles, CA 90089 USA

[5] Nanjing Univ Informat Sci & Technol, Jiangsu Key Lab Optoelect Detect Atmosphere & Oce, Nanjing 210044, Jiangsu, Peoples R China

[6] Nanjing Univ Informat Sci & Technol, Sch Phys & Optoelect Engn, Nanjing 210044, Jiangsu, Peoples R China

[7] Univ Fed Sao Carlos, Dept Phys, Rodovia Washington Luis,Km 235, Sao Carlos, SP, Brazil

来源：

APPLIED PHYSICS LETTERS | 2018年 / 112卷 / 11期

关键词：

MOLECULAR-DYNAMICS; ALUMINUM NITRIDE; COMPRESSION; CERAMICS; WAVES; TRANSFORMATION; CONSTRUCTION; SIMULATIONS; TEMPERATURE; TRANSITION;

D O I：

10.1063/1.5025583

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The understanding of the nanoscale mechanisms of shock damage and failure in SiC is essential for its application in effective and damage tolerant coatings. We use molecular-dynamics simulations to investigate the shock properties of 3C-SiC along low-index crystallographic directions and in nanocrystalline samples with 5 nm and 10 nm grain sizes. The predicted Hugoniot in the particle velocity range of 0.1 km/s-6.0 km/s agrees well with experimental data. The shock response transitions from elastic to plastic, predominantly deformation twinning, to structural transformation to the rock-salt phase. The predicted strengths from 12.3 to 30.9 GPa, at the Hugoniot elastic limit, are in excellent agreement with experimental data. Published by AIP Publishing.

引用

页数：5

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