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Physical and electrical properties of 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 ceramics
 Král, Michael ; Nan, Bo (oponent) ; Hughes, Hana (vedoucí práce)
The purpose of this study is to prepare lead-free piezoelectric powders and ceramics with composition 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 and subsequent measurement of their physical and electrical properties. This thesis contains a literature review about piezoelectric ceramics and their properties, together with a description of the experimental approach to the preparation and measurement of properties of the samples. Contributions of the thesis are an exact description of the fabrication and measurement of properties, determination physical and electrical properties of this lead-free piezoceramic and suggestions for further development. The best electrical properties were measured on samples sintered at a temperature of 1425 °C, with d33 = 290.5 pC/N, average value of grain size is 46.8 m and relative density of 93.9 %.
Úplný záznam
Physical and electrical properties of 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 ceramics
 Král, Michael ; Nan, Bo (oponent) ; Hughes, Hana (vedoucí práce)
The purpose of this study is to prepare lead-free piezoelectric powders and ceramics with composition 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 and subsequent measurement of their physical and electrical properties. This thesis contains a literature review about piezoelectric ceramics and their properties, together with a description of the experimental approach to the preparation and measurement of properties of the samples. Contributions of the thesis are an exact description of the fabrication and measurement of properties, determination physical and electrical properties of this lead-free piezoceramic and suggestions for further development. The best electrical properties were measured on samples sintered at a temperature of 1425 °C, with d33 = 290.5 pC/N, average value of grain size is 46.8 m and relative density of 93.9 %.
Úplný záznam

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