D309 CONTROL OF SIZE, MORPHOLOGY AND PHASE OF NANO PARTICLES USING CO_2 LASER IRRADIATION(Radiative/dielectric properties)
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概要
- 論文の詳細を見る
Nano crystalline or non-crystalline particles have been widely used in various industrial area, such as ceramics, catalysis, electronics, metallurgy and optic device. In all applications, synthesizing the particles as small as possible and controlling the crystalline phase according to its purpose are necessary for the enhancement of materials properties. In some cases, non-agglomerated particles may be necessary for solving the packing problems. This motivates our attempt of controlling size, morphology, phase of nano titania and silica particles. If one can enhance sintering rate of small aggregates independently of collision rate, one may expect that original aggregates can be changed into volume equivalent spheres and thereby the decrease of collision frequency due to the change leads to much smaller rate of growth of the particles. Rapid heating and cooling of nanoparticles can occur when nanoparticles are irradiated by high power laser beam and this has been also utilized to control the crystalline phase of nanoparticles. This is the basic idea of our control strategy.
- 一般社団法人日本機械学会の論文
- 2000-10-01
著者
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Choi Mansoo
School Of Mechanical And Aerospace Engineering Seoul National University:national Cri Center For Nan
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Choi Mansoo
School Of Mechanical And Aerospace Engineering Seoul National University
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Lee Donggeun
School of Mechanical and Aerospace Engineering, Seoul National University
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Lee Donggeun
School Of Mechanical And Aerospace Engineering Seoul National University:national Cri Center For Nan
関連論文
- Measurement of Cluster Ions and Residue Nanoparticles from Water Samples with an Electrospray/Differential Mobility Analyzer
- D309 CONTROL OF SIZE, MORPHOLOGY AND PHASE OF NANO PARTICLES USING CO_2 LASER IRRADIATION(Radiative/dielectric properties)
- Gas Phase Synthesis of Nanoparticles and Their Growth Control
- Report on 2nd Asian Aerosol Conference and International Symposium on Nanoparticles, July 1-6, 2001, Pusan, Korea