文章基本信息

标题：Studies of Process Parameters on Scale up of Nd:YAG Nanopowder Synthesis by Sol-gel Process
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作者：Kiranmala Laishram ; Rekha Mann ; Neelam Malhan 等
期刊名称：Defence Science Journal
印刷版ISSN：0976-464X
出版年度：2012
卷号：62
期号：3
页码：199-202
DOI：10.14429/dsj.62.837
语种：English
出版社：Defence Scientific Information & Documentation Centre
摘要：Scale up of process from 6 g to 200 g batch for preparation of phase pure Neodymium doped Yttrium Aluminum Garnet (Nd:YAG) nanopowder by sol-gel process using nitrate-citrate route was carried out. Optimisation of process parameters was done to resolve problems associated with large batch such as evolution of large amount of acidic fumes, increased gelation and drying time and incomplete calcination. The problem of exhaust of excess acidic fumes with size scale up was handled by passing ammonia and optimized pH of the sol. Process of drying the sol was optimised for large batch size. On scaling up from 6 g to 200 g batch incomplete crystallization was observed on calcination under conditions optimized for 6 g batch. The causes of incomplete calcination with size scale up was identified and resolved to achieve completely crystalline particles in the range of ~25 nm to 50 nm. Defence Science Journal, 2012, 62(1), pp.199-202 , DOI:http://dx.doi.org/10.14429/dsj.62.837
关键词：Phase-pure Nd:YAG, sol-gel process, nitrate-citrate sol, XRD, calcination