摘要
以Al(NO3)3·9H2O、Y2O3、Nd2O3、尿素和NH4HCO3为主要原料,分别采用均相法和共沉淀法制备了Nd:YAG纳米粉体和透明陶瓷。对比研究了两种方法的粉体的制备工艺,物相,形貌和陶瓷的透过率、形貌。结果发现,均相法制备的前驱体疏松,1200℃煅烧时先形成YAP相,后形成纯相粉体。共沉淀法制备的前驱体较硬,1000℃锻烧直接形成纯相粉体。最后,两种方法制备的陶瓷素坯经真空烧结、处理后,在1064 nm的透过率达80%。共沉淀法条件温和,易于得到纯相YAG,更适合于工业化开发。
Using Al（NO3）3？9H2O, Y2O3, Nd2O3, urea and NH4HCO3 as main raw materials, Nd：YAG nanopowders and transparent ceramics were respectively prepared by homogeneous method and co-precipitation. Powder morphology, phase, ceramic transmittance and structure of the samples prepared by these two methods were compared. Results show： the precursor prepared by homogeneous method was a looselyaggregated, pure phase powder formed when calcined at 1200 ℃, while the first YAP phase was formed. The precursor prepared by coprecipitation was hard, pure phase powder directly formed when calcined at 1000 ℃ After vacuum sintering and treatment, transparent ceramics with transmittance of 80% at 1064 nm could be obtained by these two methods. Co-precipitation is more suitable for industrial development under mild conditions and it＇s easy to get pure phase of YAG.
出处
《陶瓷学报》
CAS
北大核心
2015年第1期14-18,共5页
Journal of Ceramics
关键词
均相法
共沉淀法
ND:YAG
透明陶瓷
homogeneous method
co-precipitation
Nd：YAG
transparent ceramics
