441 パウダージェットデポジション法による酸化物系セラミックスの成膜とスプレー条件の最適化(固相微粒子による成膜技術とその応用,ものづくりにおける基礎研究と先端技術の融合)

概要

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Powder Jet Deposition (PJD) technique was applied to the formation of a ceramic coatings in atmosphere and at room temperature. In additional benefits, the PJD is very simple and compact because small solid particles impinge on substrate by a splay nozzle. Therefore, it is possible to apply the PJD to the creating and repairing ceramic coatings for large and complex structures like engines of next generation space plane etc. The aim of this study is to optimize of the spray parameters of condition of aluminum titanate ceramic coatings on several substrates by the PJD technique and to clarify the mechanism of ceramics deposition. In the case of oxide ceramic coatings, lower particle velocity was better for the deposition in this study. The optimized spraying pressure, which can obtain the thickest deposition, is approximately 0.05MPa. In this case, the particle velocity was measured in approximately 90m/s by high-speed camera.
一般社団法人日本機械学会の論文
2010-11-27