LAS nanocrystalline glass and preparation method thereof

• Main Authors: LI CHANGJIU, ZHANG RUIXIANG, YI LANLIN
• Format: Patent
• Language: Chinese; English
• Published: 04.03.2022
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

The invention relates to the technical field of microcrystalline glass, in particular to LAS nanocrystalline glass and a preparation method thereof. The LAS nanocrystalline glass is prepared from the following raw materials: 50-65 wt% of SiO2; the content of Al2O3 is 22 to 28 weight percent; 6 wt%-10 wt% of Li2CO3; sb2O3 is greater than 0 wt% and less than or equal to 1 wt%; na2O is greater than 0 wt% and less than or equal to 4 wt%; znO is greater than 0 wt% and less than or equal to 4 wt%; zrO2 is greater than 0 wt% and less than or equal to 4 wt%; tiO2 is greater than 0 wt% and less than or equal to 4 wt%. The transparent LAS nanocrystalline glass is prepared from specific components in a specific ratio, and the prepared LAS nanocrystalline glass is uniform in grain size, relatively high in light transmittance and relatively low in thermal expansion coefficient by adopting electric-thermal field coupling treatment. 本发明涉及微晶玻璃技术领域，尤其涉及一种LAS纳米晶玻璃及其制备方法。LAS纳米晶玻璃由包括以下组分的原料制备得到：SiO250wt％～65wt％；Al2O322wt％～28wt％；L