Zhejiang University

Hangzhou Grand Canal Comprehensive Protection Development and Construction Group Co., Ltd.

Xuebo Li

Lin Li

Yong Liu

Li Li

Junbo Liu

Bentao Zhang

Dongshen Zhou

Gaorong Han

Yijian Wang

Shaobo Gu

Disclosed is a low-expansion borosilicate transparent glaze, a preparation method thereof, and use thereof in preparation of a glaze product by secondary fusion-cast molding. The low-expansion borosilicate transparent glaze has raw material composition by mass percentage including: 72%-80% of SiO, 4%-12% of BO, 4%-12% of NaO, 0.1%-4% of CaO, 0.1%-6% of AlO, 0-0.05% of FeO, 0-2% of MgO, 0-2% of KO, 0-2% of ZnO, 0-2% of BaO, 0-2% of ZrO, 0-0.5% of LiO, and 0-0.5% of TiO, wherein a sum of mass percentages of SiO, BOand AlOis 85%-95%. The preparation method includes steps of: (1) after mixing dried raw materials, melting at 1400-1540° C. to obtain a high-temperature glass melt; (2) cooling the high-temperature glass melt to 1150-1230° C. to mold; and (3) annealing a molded glass at 530-600° C. to obtain the low-expansion borosilicate transparent glaze.

Low-expansion borosilicate transparent glaze and a preparation method and use thereof

Growing community of inventors

Hangzhou, China

Xuebo Li