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发明授权
CN106927681B 一种锂钠钾共掺的齿科微晶玻璃及其制备和应用 有权

一种锂钠钾共掺的齿科微晶玻璃及其制备和应用
摘要：
本发明公开了一种锂钠钾共掺的齿科微晶玻璃及其制备和应用，该玻璃的组分组成按质量分数计为：SiO2 65%~75%、Li2O 5%~10%、Na2O 5%~10%、K2O 5%~10%、P2O5 4%~6%和ZrO2 4%~6%，以上组分各质量分数之和为100%。先通过熔融浇铸方法得到玻璃块体，经过析晶处理后得到易于机械加工的玻璃中间体R2SiO3(R=Li,Na,K)，随后进行二次热处理得到以R2Si2O5(R=Li,Na,K)为主晶相的微晶玻璃成品。所述微晶玻璃具有优良的抗弯强度等力学性能，可用于齿科全瓷修复材料。
摘要（英）：

The invention discloses lithium-sodium-potassium codoped dental microcrystalline glass and a preparation method and application thereof. The glass is prepared from, by mass, 65%-75% of SiO2, 5%-10% of Li2O, 5%-10% of Na2O, 5%-10% of K2O, 4%-6% of P2O5 and 4%-6% of ZrO2. The sum of the mass fractions of the components is 100%. A glass block is firstly obtained through a fusion pouring method, a glass intermediate R2SiO3 (R=Li, Na and K) easy to machine is obtained after devitrification treatment is carried out, then secondary thermal treatment is carried out, and the finished microcrystalline glass with R2Si2O5 (R=Li, Na and K) as a main crystalline phase is obtained. The microcrystalline glass has excellent bending strength and other mechanical properties and can be used for dental all-ceramic repair materials.

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