Oxidation of the hexagonal Zr(Cr0.4Fe0.6)2 Laves phase
作者： P.B Bozzano , C Ramos , F Saporiti , P.A Vázquez , R.A Versaci
DOI: 10.1016/J.JNUCMAT.2004.04.335
关键词: Laves phase 、 Diffraction 、 Crystallography 、 Chromium 、 X-ray crystallography 、 Nuclear chemistry 、 Materials science 、 Mössbauer spectroscopy 、 Hexagonal crystal system 、 Tetragonal crystal system 、 Monoclinic crystal system
摘要: Abstract The hexagonal (C14-type) Laves phase Zr(Cr 0.40 Fe 0.60 ) 2 when oxidized in an open furnace was studied by X-ray diffraction and Mossbauer spectroscopy techniques. Oxidation modified part of the original Zr oxides, Cr α-Cr, (Fe, Cr) α-Fe O 3 appeared. behaviour these phases, particularly Fe-bearing is described detail through a two stage process (stage I from 0 to ∼7 wt% II up 22 ). A very small amount I) enough induce formation upon oxidation, sustaining model previously suggested for oxidation phases. This highly Cr-substituted. proceeds increasing presence structural evolution oxides (formation monoclinic, tetragonal cubic ZrO
harvard.edu
elsevier.com
sci-hub.se 参考文章(18)
N. N. Greenwood, T. C. Gibb, Applications of the Mössbauer Effect Mössbauer Spectroscopy. pp. 80- 86 ,(1971) , 10.1007/978-94-009-5697-1_4
Xian Ying Meng, D.O. Northwood, A study of the structure of Zr(CrFe) 2 laves phase precipitates in a ZrCrFe alloy Journal of Nuclear Materials. ,vol. 137, pp. 217- 226 ,(1986) , 10.1016/0022-3115(86)90223-0
D. Pêcheur, F. Lefebvre, A.T. Motta, C. Lemaignan, J.F. Wadier, Precipitate evolution in the Zircaloy-4 oxide layer Journal of Nuclear Materials. ,vol. 189, pp. 318- 332 ,(1992) , 10.1016/0022-3115(92)90385-X
R. C. Garvie, Stabilization of the tetragonal structure in zirconia microcrystals The Journal of Physical Chemistry. ,vol. 82, pp. 218- 224 ,(1978) , 10.1021/J100491A016
S. Davison, R. Kershaw, K. Dwight, A. Wold, Preparation and characterization of cubic ZrO2 stabilized by Fe(III) and Fe(II) Journal of Solid State Chemistry. ,vol. 73, pp. 47- 51 ,(1988) , 10.1016/0022-4596(88)90052-7
R.A. Versaci, M. Ipohorski, Composition of Zr(Cr, Fe)2-type precipitates in Zircaloy-2 and Zircaloy-4 Journal of Nuclear Materials. ,vol. 116, pp. 321- 323 ,(1983) , 10.1016/0022-3115(83)90119-8
X. Iltis, F. Lefebvre, C. Lemaignan, Microstructural study of oxide layers formed on Zircaloy-4 in autoclave and in reactor part 11: Impact of the chemical evolution of intermetallic precipitates on their zirconia environment Journal of Nuclear Materials. ,vol. 224, pp. 121- 130 ,(1995) , 10.1016/0022-3115(95)00069-0
J.A.H. Coaquira, H.R. Rechenberg, J. Mestnik-Filho, A.W. Carbonari, Structural, magnetic and hyperfine properties of Zr(Cr1−xFex)2 hydrides Journal of Alloys and Compounds. ,vol. 356, pp. 200- 203 ,(2003) , 10.1016/S0925-8388(02)01235-5
Ronald C. Garvie, THE OCCURRENCE OF METASTABLE TETRAGONAL ZIRCONIA AS A CRYSTALLITE SIZE EFFECT The Journal of Physical Chemistry. ,vol. 69, pp. 1238- 1243 ,(1965) , 10.1021/J100888A024
R.A. Versaci, M. Ipohorski, Polytype structure of intermetallic precipitates in zircaloy-4 alloys Journal of Nuclear Materials. ,vol. 80, pp. 180- 183 ,(1979) , 10.1016/0022-3115(79)90234-4