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Phase-Transformation-Induced Twins in Lanthanum Gallate Perovskite (LaGaO3)

Pressureless-sintered lanthanum gallate (LaGaO3) ceramics have been analyzed using X-ray diffractometry (XRD), scanning electron and transmission electron microscopy (SEM and TEM), and electron-backscatter diffraction (EBSD). Transformation-induced twin domains are generated by solid-state phase transition upon cooling from the rhombohedral (r, space group R c) to orthorhombic (o, space group Pnma) symmetry at 145oC. Four types of transformation twins {101}, {121},

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0705106-185249
Date05 July 2006
CreatorsWang, Wei-Lin
Contributorsnone, none, none, none, none, none, Hong-Yang Lu
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageEnglish
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0705106-185249
Rightsunrestricted, Copyright information available at source archive

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