Corrosion of combustion-synthesized β-SiAlONs in supercritical water

被引：4

作者：

Yi, Xuemei ^{[2
]}

Yamauchi, Akira ^{[1
]}

Kurokawa, Kazuya ^{[1
]}

Akiyama, Tomohiro ^{[1
]}

机构：

[1] Hokkaido Univ, Ctr Adv Res Energy & Mat, Kita Ku, Sapporo, Hokkaido 0608628, Japan

[2] Hokkaido Univ, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan

来源：

CORROSION SCIENCE | 2012年 / 56卷

关键词：

Ceramic; Weight loss; High temperature corrosion; BEHAVIOR; OXIDATION; CERAMICS; COMBINATION; ALLOYS; NANOPARTICLES; METHANOL; STEEL;

D O I：

10.1016/j.corsci.2011.11.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The corrosion of beta-Si(6-z)Al(z)O(z)N(8-z)s (z = 1, 2, and 3) prepared by combustion synthesis (CS) followed by spark plasma sintering (SPS) was investigated in supercritical water at 400 degrees C/30 MPa for 100 h. The corrosion behavior was studied by means of gravimetry, X-ray diffraction (XRD), scanning electron microscopy (SEM)/energy dispersive X-ray spectrometer (EDS). The mass loss and corroded layer decreased with the increasing in z value, and the results of XRD showed the oxide formed on beta-SiAlONs (z = 1, 2, and 3) is aluminum silicate (Al2SiO5). Finally, we proposed the reaction mechanism of these materials in supercritical water. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：153 / 157

页数：5

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