Effects of Different Fluxes on Properties of Anorthite-Based Daily Porcelain

Abstract

Abstract: Anorthite-based daily porcelain was prepared by using calcite, kaolin and alumina as the main raw materials, feldspar, burnt talc and dolomite as fluxes. The effects of different fluxes and their addition amounts on properties of anorthite-based daily porcelain were studied. The results show that the fluxing effect is poor when feldspar is served as single flux. At the same time, excessive feldspar will lead to the significantly reduction of bending strength. With burnt talc and feldspar as composite fluxes, the fluxing effect is not obvious at a low addition amount of burnt talc. When the addition amount of burnt talc increases to 4%(mass fraction), the water absorption of sample obviously decreases and the bending strength is improved dramatically. The fluxing effect is good when the dolomite and feldspar are served as composite fluxes. With the increase of the addition amount of dolomite, the bending strength of sample increases first and then decreases. When the addition amount of dolomite is 6%(mass fraction), sample has the best comprehensive properties, which has a water absorption of 0.27%, bending strength of 101 MPa and good transparency.

Key words: flux, anorthite, daily porcelain, feldspar, burnt talc, dolomite, bending strength

CLC Number:

TQ174.73

CHENG Zhenyu, MIAO Lifeng, BAO Zhenhong. Effects of Different Fluxes on Properties of Anorthite-Based Daily Porcelain[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(9): 3324-3333.

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