期刊论文详细信息
Defence Science Journal | |
Sol Freeze Dry Nd:YAG Nanopowder Synthesis and Sinterability Studies | |
Sheikh Ashfaq Ahmed1  Khavangkhui Zimik1  Kiranmala Laishram1  Rekha Mann1  Neelam Malhan1  | |
[1]Laser Materials Division, Laser Science and Technology Centre | |
关键词: Freeze dry; Nd:YAG; transparent ceramic; vacuum sintering; HIP; Nd:YAG nanopowder; sinterability; | |
DOI : | |
学科分类:社会科学、人文和艺术(综合) | |
来源: Defence Scientific Information & Documentation Centre | |
【 摘 要 】
Citrate nitrate sol freeze dry synthesis of 2 atomic % neodymium ion doped Yttrium Aluminium Oxide (Nd:YAG) nanopowders was explored for the first time. Sol was prepared by dissolving nitrates of Al3+, Y3+ and Nd3+ keeping molar ratio to be 5: 2.94: 0.06. Total metal ion to citric acid ratio was optimised at 1 is to 0.25. Sol was freeze dried at -80 °C for 48 h. Dried mass thus obtained was calcined at 1000 °C for 2 h to give phase pure Nd:YAG as characterised by FTIR and XRD. Particles were in the size range of 35 nm - 50 nm with close to spherical morphology as observed by TEM. Nanopowder was compacted and sintered at 1700 °C for 5 h under 10-6 mbar followed by hot isostatic press at 1750 °C for 4 h under 200 MPa, to give 71 per cent transmission at 1064 nm indicating synthesis of well sinterable Nd:YAG nanopowders.【 授权许可】
Unknown
【 预 览 】
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RO201912010140662ZK.pdf | 1424KB | download |