阅读说明：本技术 具有低含量锂的透明β-石英玻璃陶瓷 (Transparent β -quartz glass ceramic with low lithium content ) 是由 M·J·M·孔德 T·奥格 P·勒于得 于 2018-06-06 设计创作，主要内容包括：本申请提供β-石英的透明玻璃陶瓷,其组成含有少量锂,至少部分由所述玻璃陶瓷构成的制品、所述玻璃陶瓷的玻璃前体,还提供了所述制品的制备方法。所述玻璃陶瓷具有如下组成,除了不可避免的痕量之外不含氧化砷和氧化锑,以氧化物的重量％计,含有：62％至68％SiO<Sub>2</Sub>；17％至21％Al<Sub>2</Sub>O<Sub>3</Sub>；1％至<2％Li<Sub>2</Sub>O；1％至4％MgO；1％至6％ZnO；0至4％BaO；0至4％SrO；0至1％CaO；1％至5％TiO<Sub>2</Sub>；0至2％ZrO2；0至1％Na<Sub>2</Sub>O；0至1％K<Sub>2</Sub>O；使得Na<Sub>2</Sub>O+K<Sub>2</Sub>O+BaO+SrO+CaO＜6％；任选地最高至2％的至少一种包括SnO<Sub>2</Sub>的澄清剂；以及任选地最高至2％的至少一种着色剂。(The present application provides β -quartz transparent glass-ceramics, the composition of which contains a small amount of lithium, articles at least partially composed of the glass-ceramics, glass precursors of the glass-ceramics, and methods for the production of the articles, the glass-ceramics having a composition which, apart from unavoidable traces, is free of arsenic oxide and antimony oxide and which contains, in% by weight of oxides, 62% to 68% of SiO 2 (ii) a 17% to 21% Al 2 O 3 (ii) a 1% to<2％Li 2 O; 1% to 4% MgO; 1% to 6% ZnO; 0 to 4% BaO; 0 to 4% SrO; 0 to 1% CaO; 1 percent ofTo 5% TiO 2 (ii) a 0 to 2% ZrO 2; 0 to 1% Na 2 O; 0 to 1% K 2 O; so that Na is present 2 O+K 2 O + BaO + SrO + CaO is less than 6 percent; optionally up to 2% of at least one comprises SnO 2 The clarifying agent of (1); and optionally up to 2% of at least one colorant.)