Characterization of zirconium oxides part II: New insights on the growth of zirconia revealed through complementary high-resolution mapping techniques

被引：17

作者：

Efaw, Corey M. ^{[1
,2
]}

Vandegrift, Jordan L. ^{[1
,2
]}

Reynolds, Michael ^{[1
]}

Jaques, Brian J. ^{[1
,2
]}

Hu, Hongqiang ^{[3
]}

Xiong, Hui ^{[1
,2
]}

Hurley, Michael F. ^{[1
,2
]}

机构：

[1] Boise State Univ, Micron Sch Mat Sci & Engn, 1910 W Univ Dr, Boise, ID 83725 USA

[2] Ctr Adv Energy Studies, 995 Univ Blvd, Idaho Falls, ID 83401 USA

[3] Idaho Natl Lab, 2525 Fremont Ave, Idaho Falls, ID 83402 USA

来源：

CORROSION SCIENCE | 2020年 / 167卷

基金：

美国国家科学基金会;

关键词：

Zirconium alloys; Cladding; Oxidation; Raman mapping; SKPFM; SEM/EDS; SCANNING KELVIN PROBE; RAMAN-SPECTROSCOPY; FORCE MICROSCOPY; POTENTIAL MEASUREMENTS; STAINLESS-STEEL; PURE ZIRCONIUM; IN-SITU; CORROSION; ZIRCALOY-4; OXIDATION;

D O I：

10.1016/j.corsci.2020.108491

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Raman mapping, scanning Kelvin probe force microscopy (SKPFM), and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDS) were combined to investigate oxidized zirconium alloys. Raman provided spatially resolved phase composition and relative stress state. When coupled with SKPFM, phase composition was correlated to Volta potentials differences. The potential of tetragonal zirconia was lower than the metal zirconium, making the tetragonal phase favorable for reaction with diffusing species, thus hindering further oxidation of the relatively cathodic metal. This provides new insight to the theory of the tetragonal phase being an oxidation barrier.

引用

页数：11

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