Highly transparent yttrium titanate (Y₂Ti₂O₇) ceramics were fabricated by vacuum sintering using co-precipitated powders for the first time. The effects of the powder calcination temperature on the phase composition, morphology of the calcined powders, and on the microstructure and transmittance of the Y₂Ti₂O₇ ceramics were investigated. When the calcination temperature was above 850 °C, pure phase Y₂Ti₂O₇ nanopowders with high sintering activity were obtained. Transparent Y₂Ti₂O₇ ceramics were obtained after vacuum sintered at 1600 °C for 6 h and annealed at 1100 °C for 5 h in air. The highest transmittance reached 73% at 1000 nm when the calcination temperature was 1150 °C. The measured refractive index of Y₂Ti₂O₇ ceramics was higher than 2.24 at the wavelength range of 350–1000 nm, making it a promising candidate for optical devices.

首次使用共沉淀粉末通过真空烧结制备了高度透明的钛酸钇（Y ₂ Ti ₂ O ₇）陶瓷。研究了粉末煅烧温度对相组成，煅烧粉末形貌以及Y ₂ Ti ₂ O ₇陶瓷的显微结构和透射率的影响。当煅烧温度高于850℃时，获得具有高烧结活性的纯相Y ₂ Ti ₂ O ₇纳米粉。透明Y ₂ Ti ₂ O ₇在1600℃下真空烧结6小时并在1100℃下在空气中退火5小时后，获得陶瓷。当煅烧温度为1150°C时，最高透射率在1000 nm处达到73％。在350-1000 nm的波长范围内，Y ₂ Ti ₂ O ₇陶瓷的测量折射率高于2.24，这使其成为光学器件的有希望的候选者。