コールドスプレー法で成膜した可視光応答型光触媒皮膜の光触媒特性

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タイトル別名
  • Photocatalytic Properties of Visible-light Photocatalytic Coating by Cold Spray Technique
  • コールドスプレーホウ デ セイマク シタ カシコウ オウトウガタ ヒカリ ショクバイ ヒマク ノ ヒカリ ショクバイ トクセイ

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Agglomerated visible-light photocatalytic powder was sprayed by cold spray equipment on an Aluminum(JIS A-1100)substrate.DYMET 412k manufactured by OSPC was used as cold spray equipment and the process gas was compressed air.The powder was prepared by the spray dry method.The primary particle size of TiO2,MPT-623 made by ISHIHARA SANGYO KAISHA,LTD.was about 20 nm and rutile phase.Also ST-41 powder that could absorb ultraviolet light was used to compare with coating properties.The crystal phase was anatase.Phase transformation and grain growth of both powders didn't observe after cold spraying and provided antimicrobial and deodorization effects.Although their coating thickness was about 5μm, photocatalytic properties were superior to HVOF sprayed coatings.It was indicate that cold spraying was useful method to deposit photocatalytic powder.

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