Contribution of dangling-bonds to polycrystalline SiC corrosion

被引：8

作者：

Kondo, Sosuke ^{[1
]}

Seki, Kotaro ^{[2
]}

Maeda, Yuki ^{[3
]}

Yu, Hao ^{[1
]}

Fukami, Kazuhiro ^{[3
]}

Kasada, Ryuta ^{[1
]}

机构：

[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[2] Tohoku Univ, Dept Quantum Sci & Energy Engn, Sendai, Miyagi 9808579, Japan

[3] Kyoto Univ, Dept Mat Sci & Engn, Kyoto 6068501, Japan

来源：

SCRIPTA MATERIALIA | 2020年 / 188卷

关键词：

Lattice defects; Corrosion; Electrochemistry; Ceramics; ELECTRON-SPIN-RESONANCE; INDUCED DEFECTS; SILICON; EVOLUTION; SURFACE; EPR;

D O I：

10.1016/j.scriptamat.2020.07.001

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The relationship between lattice defects and the corrosion of SiC irradiated with heavy ions at 400 degrees C and 800 degrees C was investigated using electrochemistry and electron spin resonance spectroscopy. An immersion test in high-pressure hot water was also used to evaluate surface recession. The corrosion current increased monotonically with dangling-bond (DB) density, indicating that DBs were the primary reaction sites. Further, the surface recession rate in hot water increased exponentially with increasing DB density. The dense DBs were found to be surrounded by distorted lattices. These findings indicated that SiC dissolution was further accelerated by the accumulated lattice distortion. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：6 / 9

页数：4

共 27 条

[1] Ab initio study of the migration of intrinsic defects in 3C-SiC -: art. no. 205201
Bockstedte, M
Mattausch, A
Pankratov, O
[J]. PHYSICAL REVIEW B, 2003, 68 (20)
[2] THE MECHANISM OF THE ANODIC-OXIDATION OF SILICON IN ACIDIC FLUORIDE SOLUTIONS REVISITED
GERISCHER, H
ALLONGUE, P
KIELING, VC
[J]. BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1993, 97 (06): : 753 - 756
[3] Positron annihilation spectroscopy investigation of vacancy defects in neutron-irradiated 3C-SiC
Hu, Xunxiang
Koyanagi, Takaaki
Katoh, Yutai
Wirth, Brian D.
[J]. PHYSICAL REVIEW B, 2017, 95 (10)
[4] A SIMPLE MOLECULAR-ORBITAL CALCULATION OF ELECTRON-SPIN-RESONANCE G-VALUES FOR AMORPHOUS SI1-XCX, SI1-XGEX AND GE1-XCX
ISHII, N
KUMEDA, M
SHIMIZU, T
[J]. SOLID STATE COMMUNICATIONS, 1982, 41 (02) : 143 - 146
[5] EPR identification of intrinsic defects in SiC
Isoya, J.
Umeda, T.
Mizuochi, N.
Son, N. T.
Janzen, E.
Ohshima, T.
[J]. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2008, 245 (07): : 1298 - 1314
[6] RADIATION-INDUCED DEFECTS IN CVD-GROWN 3C-SIC
ITOH, H
YOSHIKAWA, M
NASHIYAMA, I
MISAWA, S
OKUMURA, H
YOSHIDA, S
[J]. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1990, 37 (06) : 1732 - 1738
[7] ELECTRON-SPIN-RESONANCE STUDY OF DIAMOND-LIKE NUCLEI PRODUCED IN AN SI SURFACE-LAYER BY HIGH-DOSE C ION DOPING
IZUMI, T
SHOW, Y
DEGUCHI, M
KITABATAKE, M
HIRAO, T
MORI, Y
ITO, T
HIRAKI, A
[J]. THIN SOLID FILMS, 1993, 228 (1-2) : 285 - 288
[8] Microstructural defects in SiC neutron irradiated at very high temperatures
Kondo, S.
Katoh, Y.
Snead, L. L.
[J]. JOURNAL OF NUCLEAR MATERIALS, 2008, 382 (2-3) : 160 - 169
[9] Role of irradiation-induced defects on SiC dissolution in hot water
Kondo, Sosuke
Mouri, Shinichiro
Hyodo, Yoshihiro
Hinoki, Tatsuya
Kano, Fumihisa
[J]. CORROSION SCIENCE, 2016, 112 : 402 - 407
[10] Effect of irradiation damage on hydrothermal corrosion of SiC
Kondo, Sosuke
Lee, Moonhee
Hinoki, Tatsuya
Hyodo, Yoshihiro
Kano, Fumihisa
[J]. JOURNAL OF NUCLEAR MATERIALS, 2015, 464 : 36 - 42

← 1 2 3 →