A spray co-precipitation method was developed to efficiently synthesize Nd:YAG nano-powders. The effects of spray speeds and solution concentrations on the crystallization processes of calcined precursors have been studied. The results indicated that the pure phase of YAG could be obtained by three different crystallization processes owing to different homogeneity levels of Y and Al mixing. Pure YAG powder was obtained at 850 °C and the phase purity persisted to 1600 °C. Using the obtained powders, transparent ceramics with the in-line transmittance up to 80.2%@400 nm and 83.1%@1064 nm were fabricated by gel-casting method and hot isostatic pressing sintering. Furthermore, the microstructure and laser properties of the transparent ceramics have been measured. The maximum laser output of 7.015 W has been obtained with an oscillation threshold and a slope efficiency of 0.235 W and 59.4%, respectively.

开发了一种喷雾共沉淀法以有效合成Nd：YAG纳米粉。研究了喷雾速度和溶液浓度对煅烧前体结晶过程的影响。结果表明，由于Y和Al混合均匀度不同，可以通过三种不同的结晶过程获得YAG的纯相。在850℃获得纯的YAG粉末，相纯度持续到1600℃。使用获得的粉末，通过凝胶浇铸法和热等静压烧结法制备了在线透射率分别高达80.2%@400 nm和83.1%@1064 nm的透明陶瓷。此外，已经测量了透明陶瓷的微观结构和激光性能。最大激光输出为7。