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2015•Guangzhou Chemical IndustryRequires access

Study on Preparation and Temperature-resistivity Effect of the BaTiO_3-based PTC Meterials

Wang Li-jua

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Abstract

Through the four kinds of oxides( B2O3,Si O2,Li2 O,P2O5) doping into the barium titanate powder,the PTC synthesized materials were characterized by XRD. Resistivity temperature characteristic curve analysis and other research on electrical properties were also analyzed. Changing the feed amount of the oxide,the final contrast material crystal structure,PTC effect,and other electrical properties,it was found that PTC material showed the obvious PTC effect,but also decrised the room temperature resistivity,incrised it's drag ratio,showed good effect on the high dielectric constant and low dielectric loss characteristics.

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What this paper is about

Through the four kinds of oxides( B2O3,Si O2,Li2 O,P2O5) doping into the barium titanate powder,the PTC synthesized materials were characterized by XRD. Resistivity temperature characteristic curve analysis and other research on electrical properties were also analyzed. Changing the feed amount of the oxide,the final contrast material crystal structure,PTC effect,and other electrical properties,it was found that PTC material showed the obvious PTC effect,but also decrised the room temperature resistivity,incrised it's drag ratio,showed good effect on the high dielectric constant and low dielectric loss characteristics.

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Available abstract

Through the four kinds of oxides( B2O3,Si O2,Li2 O,P2O5) doping into the barium titanate powder,the PTC synthesized materials were characterized by XRD. Resistivity temperature characteristic curve analysis and other research on electrical properties were also analyzed. Changing the feed amount of the oxide,the final contrast material crystal structure,PTC effect,and other electrical properties,it was found that PTC material showed the obvious PTC effect,but also decrised the room temperature resistivity,incrised it's drag ratio,showed good effect on the high dielectric constant and low dielectric loss characteristics.

Key concepts: Electrical resistivity and conductivity, Materials science, Barium titanate, Dielectric, Doping, Barium, Dielectric loss, Composite material

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