A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prestressed ceramic and preparation method thereof
The invention discloses prestressed ceramic and a preparation method thereof. The prestressed ceramic comprises a green body and a first prestressed layer located on the surface of the green body, and the thermal expansion coefficient of the first prestressed layer is smaller than that of the green body; the raw materials of the first prestressed layer comprise calcite, kaolin, quartz, spodumene, zinc oxide, barium carbonate and frit; wherein the frit comprises the following raw materials: kaolin, quartz, talc, dolomite, aluminum oxide, zinc oxide, wollastonite and spodumene. According to the prestressed ceramic disclosed by the invention, the first prestressed layers are respectively arranged on the surface and the bottom surface of the green body, and certain external tensile stress on the ceramic can be counteracted by the prestress of the first prestressed layers, so that the strength and the toughness of the ceramic are greatly improved, and the ceramic structure is prevented from being damaged; the prestressed ceramic solves the problems of low impact resistance and low strength of the existing ceramic, and preferably, the prestressed ceramic belongs to the field of architectural ceramics.
本发明公开了一种预应力陶瓷及其制备方法，包括坯体和位于坯体表面的第一预应力层，第一预应力层热膨胀系数小于坯体的热膨胀系数；第一预应力层的原料包括方解石、高岭土、石英、锂辉石、氧化锌、碳酸钡和熔块；其中，熔块的原料包括高岭土、石英、滑石、白云石、氧化铝、氧化锌、硅灰石和锂辉石。本发明的预应力陶瓷，通过在坯体的表面和底面均分别设置有第一预应力层，当陶瓷受到外部一定的张应力时会被第一预应力层的预应力所抵消，从而大大提高陶瓷的强度和韧性，避免陶瓷结构被破坏，解决了现有陶瓷耐冲击能力较低和强度低的问题，优选的，本发明的预应力陶瓷为建筑陶瓷领域。
Prestressed ceramic and preparation method thereof
The invention discloses prestressed ceramic and a preparation method thereof. The prestressed ceramic comprises a green body and a first prestressed layer located on the surface of the green body, and the thermal expansion coefficient of the first prestressed layer is smaller than that of the green body; the raw materials of the first prestressed layer comprise calcite, kaolin, quartz, spodumene, zinc oxide, barium carbonate and frit; wherein the frit comprises the following raw materials: kaolin, quartz, talc, dolomite, aluminum oxide, zinc oxide, wollastonite and spodumene. According to the prestressed ceramic disclosed by the invention, the first prestressed layers are respectively arranged on the surface and the bottom surface of the green body, and certain external tensile stress on the ceramic can be counteracted by the prestress of the first prestressed layers, so that the strength and the toughness of the ceramic are greatly improved, and the ceramic structure is prevented from being damaged; the prestressed ceramic solves the problems of low impact resistance and low strength of the existing ceramic, and preferably, the prestressed ceramic belongs to the field of architectural ceramics.
本发明公开了一种预应力陶瓷及其制备方法，包括坯体和位于坯体表面的第一预应力层，第一预应力层热膨胀系数小于坯体的热膨胀系数；第一预应力层的原料包括方解石、高岭土、石英、锂辉石、氧化锌、碳酸钡和熔块；其中，熔块的原料包括高岭土、石英、滑石、白云石、氧化铝、氧化锌、硅灰石和锂辉石。本发明的预应力陶瓷，通过在坯体的表面和底面均分别设置有第一预应力层，当陶瓷受到外部一定的张应力时会被第一预应力层的预应力所抵消，从而大大提高陶瓷的强度和韧性，避免陶瓷结构被破坏，解决了现有陶瓷耐冲击能力较低和强度低的问题，优选的，本发明的预应力陶瓷为建筑陶瓷领域。
Prestressed ceramic and preparation method thereof
一种预应力陶瓷及其制备方法
ZHANG ZHIPENG (author) / JIANG BINXUAN (author) / QIN HAN (author) / CHEN ZHIFENG (author) / LUO QIANG (author) / LI ZHIHONG (author) / ZHONG BAOMIN (author)
2021-08-17
Patent
Electronic Resource
Chinese
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