標題: Phase transformation and microstructural development of zirconia/stainless steel bonded with a Ti/Ni/Ti interlayer for the potential application in solid oxide fuel cells
作者: Wei, Shen-Hung
Lin, Chien-Cheng
材料科學與工程學系
Department of Materials Science and Engineering
公開日期: 28-四月-2014
摘要: The 8 mol% yttria-stabilized zirconia (8Y-ZrO2) was bonded to stainless steel 316L at 900 degrees C for 1 h in a protective Ar atmosphere using an interlayer of Ti/Ni/Ti. Interfacial microstructures were characterized using both secondary electron microscope (SEM) and transmission electron microscope (TEM), each with an attached energy dispersive spectroscope (EDS). A layer sequence of sigma-phase/TiFe2/TiFe + beta-Ti/Ti2Fe was observed at the stainless steel 316L/Ti interface, whereas a layer sequence of Ti2Ni/Ti2Ni + TiNi/TiNi3 was found at the Ti/Ni interface. Furthermore, TiO and c-ZrO2-x formed at the Ti/8Y-ZrO2 interface. An acicular alpha-Ti and a fine omega-phase existed along with beta-Ti in the residual Ti foil adjacent to the stainless steel 316L, but alpha-Ti and Ti2Ni were observed within beta-Ti in the other residual Ti foil adjacent to the 8Y-ZrO2. The orientation relationships of the omega-phase and beta-Ti were ${left[ {1bar 10} right]_{{rm{ beta {hbox-} Ti}}}}//{left[ {1bar 210} right]_{rm{omega }}}$ and ${left( {111} right)_{{rm{beta {hbox-} Ti}}}}//{left( {0001} right)_{rm{omega }}}$ , respectively. The microstructural development was elucidated with the aid of Fe-Ti and Ni-Ti binary phase diagrams.
URI: http://dx.doi.org/10.1557/jmr.2014.65
http://hdl.handle.net/11536/24473
ISSN: 0884-2914
DOI: 10.1557/jmr.2014.65
期刊: JOURNAL OF MATERIALS RESEARCH
Volume: 29
Issue: 8
起始頁: 923
結束頁: 934
顯示於類別:期刊論文


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