Oxidation behaviour of zirconium hydride and its influence on the thermal desorption kinetics

被引：5

作者：

Ma, Mingwang ^{[1
]}

Wang, Lei ^{[1
]}

Wang, Yuan ^{[1
]}

Xiang, Wei ^{[1
]}

Tang, Binghua ^{[1
]}

Lyu, Ping ^{[1
]}

Tan, Xiaohua ^{[1
]}

机构：

[1] China Acad Engn Phys, Inst Elect Engn, Mianyang 621999, Peoples R China

来源：

CORROSION SCIENCE | 2018年 / 134卷

基金：

中国国家自然科学基金;

关键词：

Zirconium hydride; Thermal desorption spectroscopy; XPS; Oxidation kinetics; Diffusion coefficient; HIGH-TEMPERATURE OXIDATION; TITANIUM-HYDRIDE; HYDROGEN DESORPTION; IN-SITU; DECOMPOSITION KINETICS; ALPHA-ZIRCONIUM; OXIDE LAYER; ZR ALLOYS; X-RAY; SURFACE;

D O I：

10.1016/j.corsci.2018.02.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The oxidation kinetics of zirconium hydride powder in air was studied over the temperature range of 100-300 degrees C. The oxidation kinetic parameters were obtained and a controlling mechanism was proposed. The XPS depth profile analysis was consistent with a layered structure of the oxide film. The evolution of oxygen concentration profile allowed to estimate the diffusion coefficient of oxygen in zirconium oxide. Thermal desorption behaviours of pre-oxidized ZrH2 were studied using simultaneous thermogravimetry and thermal desorption spectroscopy (TG-TDS). The phase transformation sequence during dehydrogenation process of pre-oxidized ZrH2 was established and a corresponding shrinking core model was proposed.

引用

页码：199 / 210

页数：12

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