dc.contributor.author | Azubike, D.C. | |
dc.contributor.author | Chrysanthou, A. | |
dc.contributor.author | Terry, B.S. | |
dc.date.accessioned | 2012-10-08T13:29:38Z | |
dc.date.available | 2012-10-08T13:29:38Z | |
dc.date.issued | 1994-06-01 | |
dc.identifier.citation | Azubike , D C , Chrysanthou , A & Terry , B S 1994 , ' Kinetic dissociation of nickel titanate and nickel tungstate in oxygen potential gradients ' , Journal of Materials Science , vol. 29 , no. 11 , pp. 2957-2962 . https://doi.org/10.1007/BF01117607 | |
dc.identifier.issn | 0022-2461 | |
dc.identifier.uri | http://hdl.handle.net/2299/9078 | |
dc.description | Copyright 2007 Elsevier B.V., All rights reserved. | |
dc.description.abstract | Nickel titanate (NiTiO) and nickel tungstate (NiWO) were exposed to oxygen potential gradients at 1400 and 1100° C, and they were found to dissociate into their constituent oxides, namely, NiO and TiO, and WO and NiO, respectively. This is consistent with the non-equilibrium phenomenon of kinetic decomposition. In the case of nickel titanate, at the low-oxygen-potential side, TiO was formed as sharp needle-like structures within the titanate matrix, while at the high-oxygen-potential side, NiO was formed. In contrast, NiO was formed at the lower-oxygen-potential side in the case of nickel tungstate, while WO volatized off from the high-oxygen-potential side. This indicated that W diffuses faster than Ni in tungstates. In both cases, there were significant macroscopic shifts of the oxide with respect to the original position, established with Pt markers, towards the high-oxygen-potential side | en |
dc.format.extent | 6 | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of Materials Science | |
dc.title | Kinetic dissociation of nickel titanate and nickel tungstate in oxygen potential gradients | en |
dc.contributor.institution | Centre for Engineering Research | |
dc.contributor.institution | Materials and Structures | |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.contributor.institution | Department of Engineering and Technology | |
dc.contributor.institution | Centre for Climate Change Research (C3R) | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1007/BF01117607 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |