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BaTiO3-based PTC (Positive Temperature Coefficient) ceramic and preparation method thereof

GAO JUN / LI YONGXIANG

The invention relates to BaTiO3-based PTC (Positive Temperature Coefficient) ceramic and a preparation method thereof. The BaTiO3-based PTC ceramic is doped BaTiO3 ceramic. The preparation method comprises the following steps of A) preparing BaTiO3-based PTC ceramic raw material powder; B) performing at least twice pre-sintering on the BaTiO3-based PTC ceramic raw material powder, wherein the pre-sintering process comprises the steps of pre-sintering at 1000-1500 DEG C and grinding; C) prilling and forming the BaTiO3-based PTC ceramic raw material powder subjected to at least twice pre-sintering to obtain ceramic blanks; D) sintering the ceramic at 1100-1500 DEG C to obtain the BaTiO3-based PTC ceramic.

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BaTiO3-based PTC (Positive Temperature Coefficient) ceramic and preparation method thereof

GAO JUN / LI YONGXIANG

The invention relates to BaTiO3-based PTC (Positive Temperature Coefficient) ceramic and a preparation method thereof. The BaTiO3-based PTC ceramic is doped BaTiO3 ceramic. The preparation method comprises the following steps of A) preparing BaTiO3-based PTC ceramic raw material powder; B) performing at least twice pre-sintering on the BaTiO3-based PTC ceramic raw material powder, wherein the pre-sintering process comprises the steps of pre-sintering at 1000-1500 DEG C and grinding; C) prilling and forming the BaTiO3-based PTC ceramic raw material powder subjected to at least twice pre-sintering to obtain ceramic blanks; D) sintering the ceramic at 1100-1500 DEG C to obtain the BaTiO3-based PTC ceramic.

BaTiO3-based PTC (Positive Temperature Coefficient) ceramic and preparation method thereof

GAO JUN / LI YONGXIANG

The invention relates to BaTiO3-based PTC (Positive Temperature Coefficient) ceramic and a preparation method thereof. The BaTiO3-based PTC ceramic is doped BaTiO3 ceramic. The preparation method comprises the following steps of A) preparing BaTiO3-based PTC ceramic raw material powder; B) performing at least twice pre-sintering on the BaTiO3-based PTC ceramic raw material powder, wherein the pre-sintering process comprises the steps of pre-sintering at 1000-1500 DEG C and grinding; C) prilling and forming the BaTiO3-based PTC ceramic raw material powder subjected to at least twice pre-sintering to obtain ceramic blanks; D) sintering the ceramic at 1100-1500 DEG C to obtain the BaTiO3-based PTC ceramic.

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Title:

BaTiO3-based PTC (Positive Temperature Coefficient) ceramic and preparation method thereof

Contributors:

GAO JUN (author) / LI YONGXIANG (author)

Publication date:

2015-05-13

Type of media:

Patent

Type of material:

Electronic Resource

Language:

English

Classification:

IPC: C04B Kalk , LIME

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