Effects of atmosphere composition on fabrication process of hollow glass microspheres in drop-tower furnace

qi xiaobo; wei sheng; zhang zhanwen; li bo; chen sufen; shi tao

Volume 22 Issue 07

Jun. 2010

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qi xiaobo, wei sheng, zhang zhanwen, et al. Effects of atmosphere composition on fabrication process of hollow glass microspheres in drop-tower furnace[J]. High Power Laser and Particle Beams, 2010, 22.

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qi xiaobo, wei sheng, zhang zhanwen, et al. Effects of atmosphere composition on fabrication process of hollow glass microspheres in drop-tower furnace[J]. High Power Laser and Particle Beams, 2010, 22.

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Effects of atmosphere composition on fabrication process of hollow glass microspheres in drop-tower furnace

1.
Research Center of Laser Fusion,CAEP,P.O.Box 919-988,Mianyang 621900,China

Publish Date: 2010-06-30

Abstract

Abstract

To fabricate high quality hollow glass microspheres (HGMs) for inertial confinement fusion (ICF) targets by sol-gel technology, effects of furnace atmosphere composition on the transformation process from gel particles to HGMs and the resulting quality of HGMs were investigated by numerical simulation and experiments. The results show that the furnace atmosphere composition significantly affects the heat and mass transfer process between particles/microspheres and furnace atmosphere, but the falling velocity of the particles/microspheres in drop-tower furnace changes only slightly with the furnace atmosphere compositions. The heating-up rate of gel particles in heat-absorbing stage increases remarkably with the increase of the content of helium in the furnace atmosphere and increasing the
- sol-gel technology,
- hollow glass microsphere,
- inertial confinement fusion,
- target fabrication

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