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.
作者
钱敏
邹兆松
唐景平
蒋亚丝
徐永春
胡丽丽
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)
出处
《硅酸盐通报》
CAS
北大核心
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)。
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
high-purity dense zircon
high-temperature solid-phase synthesis
corrosion resistance
laser glass furnace
optical loss
