Glass-ceramics prepared from bluestone powder and preparation method thereof

• Main Authors: YAN BINGJI, GONG XINGCHEN, GUO HONGWEI, LI HONGWEI, CHEN DONG
• Format: Patent
• Language: Chinese; English
• Published: 20.10.2017
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

The invention discloses glass-ceramics prepared from bluestone powder and a preparation method thereof. The glass-ceramics are prepared from bluestone powder as a main raw material and an appropriate amount of a pure reagent. The main crystal phase is wollastonite. The glass-ceramics contain a small amount of orthorhombic wollastonite. The glass-ceramics comprise, by mass, 40 to 75% of bluestone powder and 25 to 60% of a pure reagent. The preparation method comprises uniformly mixing the raw materials to obtain a mixture, carrying out melting, water quenching, drying and crushing, putting the materials into a corundum crucible, carrying out heat treatment, and then carrying out furnace cooling to obtain the glass-ceramics containing wollastonite as a main crystal phase. The preparation method utilizes easily available raw materials, and has the highest bluestone use rate of 70% or more greatly higher than the bluestone powder treatment ratios of 30% or less of the conventional cement concrete, ceramic and foa