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http://hdl.handle.net/10773/27596
Título: | Dielectric polarisation and relaxation behaviour in Bi and La doped SrTiO3 ceramics |
Autor: | Zhi Yu |
Data de Defesa: | 1999 |
Resumo: | Since its discovery, the (Sr1-1.5xBix)TiO3 solid solution has been widely used for making capacitors. After an explanation of the dielectric behaviour by a "hopping ion" model (Skanavi et al.,1958) and later the finding of a hysteresis loop, fewer studies have been reported and its polarisation mechanism is still uncertain. With the development of relaxor materials, further studies of (Sr1-1.5xBix)TiO3 is interesting. The present work is mainly concerned with a study of dielectric properties of (Sr1-1.5xBix)TiO3 ceramics in the temperature range 11K to about 800K, (Sr1-1.5yLay)TiO3 ceramics were also made in order to provide a comparative system. [...] |
URI: | http://hdl.handle.net/10773/27596 |
Aparece nas coleções: | UA - Teses de doutoramento DEMaC - Teses de doutoramento |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Tese.pdf | 62.25 MB | Adobe PDF |
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