Synthesis of ceramic nanoparticles with non-equilibrium crystal structures and chemical compositions by controlled thermal plasma processing(The 61th CerSJ Awards for Academic Achievement in Ceramic Science and Technology : Review)

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概要

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• The synthesis of functional nanostructured powders has been developed through reactive thermal plasma processing. Nanosized particles of titanium oxide powder with high crystallinity and non-equilibrium chemical composition were synthesised by onestep processing based on the oxidation of solid and liquid precursors. Spherical carbon powders were treated in a reactive thermal plasma. Crystallinity, chemical composition, and surface morphology were changed in plasma-treated carbon powders. Plasma-treated carbon powders were used as the anode of a lithium-ion rechargeable battery, and improvements in discharge capacity and efficiency were recognized. The generation of pulse-modulated RF inductively coupled plasmas (PM-ICPs) was developed for the first time. The non-equilibrium states were recognized at the instances of pulse-on and pulse-off, and the concentration of chemically active radical species was increased. This offers a unique physico-chemical condition for materials processing.

• 社団法人日本セラミックス協会の論文
• 2008-03-01

著者

• Ishigaki Takamasa

  Graduate School Of Engineering Hosei Univ.

• Ishigaki Takamasa

  Plasma Processing Group Nano Ceramics Center National Institute For Materials Science

関連論文

• Synthesis of Ceramic Materials Using High-Temperature Thermal Plasma
• Synthesis of ceramic nanoparticles with non-equilibrium crystal structures and chemical compositions by controlled thermal plasma processing(The 61th CerSJ Awards for Academic Achievement in Ceramic Science and Technology : Review)

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