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Compound amorphous seed added electrical porcelain and preparation method thereof
The invention discloses compound amorphous seed added electrical porcelain and a preparation method thereof. The compound amorphous seed added electrical porcelain is prepared from the following raw materials in weight percent: 10-20% of SiO2, 10-25% of Al2O3, 10-20% of Fe2O3, 1-5% of TiO2, 2-10% of CaO, 0-3% of MgO, 5-15% of K2O, 3-8% of Na2O, and 5-20% of compound amorphous seeds. According to the compound amorphous seed added electrical porcelain and the preparation method thereof disclosed by the invention, the compound amorphous seeds (CaB2O4 amorphous seed and CaB4O7 amorphous seed) are added, so that the softening characteristic of the amorphous seeds can be exerted, and the sintering process of the electrical porcelain can be promoted; in the temperature raising process, the compound amorphous seeds can be converted into compound seed crystals (CaB2O4 seed crystal and CaB4O7 seed crystal), and the seed crystals are molten to form a liquid phase, so that the sintering process of the electrical porcelain can be further promoted, the density of the electric porcelain can be improved, and the breaking strength of the electrical porcelain is obviously enhanced; in addition, the addition of the compound amorphous seeds can effectively facilitate crystallization of mullite phase, and furthermore the mechanical strength of the electrical porcelain is obviously improved. The preparation method disclosed by the invention is simple and accessible in raw materials, stable and mature in process, and capable of meeting the requirements of practicability and industrialization.
Compound amorphous seed added electrical porcelain and preparation method thereof
The invention discloses compound amorphous seed added electrical porcelain and a preparation method thereof. The compound amorphous seed added electrical porcelain is prepared from the following raw materials in weight percent: 10-20% of SiO2, 10-25% of Al2O3, 10-20% of Fe2O3, 1-5% of TiO2, 2-10% of CaO, 0-3% of MgO, 5-15% of K2O, 3-8% of Na2O, and 5-20% of compound amorphous seeds. According to the compound amorphous seed added electrical porcelain and the preparation method thereof disclosed by the invention, the compound amorphous seeds (CaB2O4 amorphous seed and CaB4O7 amorphous seed) are added, so that the softening characteristic of the amorphous seeds can be exerted, and the sintering process of the electrical porcelain can be promoted; in the temperature raising process, the compound amorphous seeds can be converted into compound seed crystals (CaB2O4 seed crystal and CaB4O7 seed crystal), and the seed crystals are molten to form a liquid phase, so that the sintering process of the electrical porcelain can be further promoted, the density of the electric porcelain can be improved, and the breaking strength of the electrical porcelain is obviously enhanced; in addition, the addition of the compound amorphous seeds can effectively facilitate crystallization of mullite phase, and furthermore the mechanical strength of the electrical porcelain is obviously improved. The preparation method disclosed by the invention is simple and accessible in raw materials, stable and mature in process, and capable of meeting the requirements of practicability and industrialization.
Compound amorphous seed added electrical porcelain and preparation method thereof
ZHANG TENG (author) / LIU HONGLIN (author) / DU XINHANG (author) / LI WEITING (author) / ZHANG QI (author) / YAN JIAJIA (author) / WEI YING (author) / TANG DIAN (author)
2015-07-29
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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