【摘要】 紫外级氧化铪具有优异的光学性能和抗激光损伤性能,是制备高功率激光薄膜、高折射率紫外薄膜以及其他光学薄膜的重要材料。锆铪分离是制备紫外级氧化铪的关键。本实验研究了N235-H2SO4萃取分离锆铪体系的影响因素,并得到用N235-H2SO4萃取分离体系制备低锆氧化铪的最佳工艺。经过4级萃取,制备出含锆量低于0.1%的紫外级氧化铪。更多还原

【Abstract】 Owing to the excellent optical properties and laser damage resistance,the UV grade HfO2 became one of the most commonly used optical coating materials for optical components,laser-damage-resistant applications and high index UV coatings.The separation technique between Zr and Hf was the key of the UV grade HfO2 production.It was investigated that some factors about the N235-H2SO4 extraction system for separation hafnium and zirconium and established the best process used in the N235-H2SO4 extraction separation system to prepare HfO2 with trace ZrO2.After four stages extraction,HfO2 with lower than 0.1% ZrO2 was prepared.更多还原