用于低损耗特种玻璃熔炼的高纯致密锆英石的研制  

Development of High-Purity Dense Zircon for Melting Low-Loss Special Glasses

作　　者：钱敏[1,2] 邹兆松 唐景平[1] 蒋亚丝[1] 徐永春[1] 胡丽丽[1] QIAN Min;ZOU Zhaosong;TANG Jingping;JIANG Yasi;XU Yongchun;HU Lili(Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800 [2]中国科学院大学,北京100049

出　　处：《硅酸盐通报》2020年第12期4003-4009,4015,共8页Bulletin of the Chinese Ceramic Society

基　　金：上海市自然科学基金(18ZR1444400)。

摘　　要：以纯度大于99.9%(质量分数)的高纯ZrO 2和SiO 2为原料,少量TiO 2为添加剂,采用高温固相法合成高纯锆英石(ZrSiO 4)粉料。研究温度和反应时间对高纯锆英石合成效率的影响,发现粒度小于50μm的原料粉末经1500℃反应48 h后,ZrSiO 4相的含量可以达到95.77%(质量分数)。将合成的高纯锆英石粉料球磨并冷等静压成型后,在1550℃高温烧结成高纯致密锆英石砖。高纯致密锆英石中杂质Fe的含量仅为29μg/g,Cu的含量小于1μg/g,是普通商用致密锆英石的1/10;对磷酸盐玻璃静态光吸收损耗的影响仅为普通致密锆英石材料的1/3。将这种高纯致密锆英石材料用于激光玻璃窑炉,有助于降低玻璃对1053 nm激光的损耗,提升激光玻璃的激光性能。High-purity zircon(ZrSiO 4)powders were synthesized by high-temperature solid-phase reaction method,using 99.9%(mass fraction)high purity ZrO 2 and SiO 2 powders as raw materials and small amount of TiO 2 as additive.The effects of temperature and reaction time on the synthesis efficiency of high-purity zircon powders were studied.It is found that the fraction of the ZrSiO 4 phase reaches 95.77%(mass fraction)after the solid-phase reaction is carried out at 1500℃for 48 h using raw material powders with particle size less than 50μm.The prepared high-purity zircon powders were used as a raw material,and sintered at a high temperature above 1550℃after ball milling cold isostatic pressing to form a high-purity dense zircon brick.The concentrations of Fe and Cu impurities in high-purity dense zircon are 29μg/g and less than 1μg/g,respectively,which are only 1/10 of those in the commercial high dense zircon samples.The static optical loss of phosphate glass caused by the high-purity dense zircon samples is only 1/3 of that of the commercial high dense zircon samples.Using this high-purity dense zircon material for laser glass furnaces can reduce the optical loss at 1053 nm and improve the laser performance of laser glasses.

关 键 词：高纯锆致密英石 高温固相合成 耐侵蚀性 激光玻璃窑炉 光损耗 

分 类 号：TQ175.75[化学工程—硅酸盐工业]