논문 국내 국내전문학술지(KCI급) Improvement of Adhesion Strength of High Temperature Plasma Coated Aluminum Substrate with Aluminum-Alumina Powder Mixture
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2015-05
- 저자명 Jin Soo Park1,2, Hyo Ryong Lee3 , Beom Ho Lee3 and Joon Sik Park1†
- 학술지명 한국재료학회지
- 발행처명 한국재료학회
- 발행국가 국내
- 논문언어 한국어
- 전체저자수 4
홈페이지
논문 초록 (Abstract)
High temperature plasma coating technology has been applied to recover damaged aluminum dies from wear by spraying pure aluminum and alumina powder. However, the coated mixed powder layer composed of aluminum and alumina often undergoes a detachment from the substrate, making the coated substrate die unable to maintain its expected life span. In this study, in order to increase the bonding strength between the substrate and the coating layer, a pure aluminum layer was applied as an intermediate bond layer. In order to prepare the specimen with variable bond coating conditions, the bond coat layers with a various gun speed from 10 cm/sec to 30 cm/sec were prepared with coating cycle variations ranging from three to nine cycles. The specimen with a bond coat layer coated with a gun speed of 20 cm/sec and three coating cycles exhibited ~13MPa of adhesion strength, while the specimen without a bond coat layer showed ~6 MPa of adhesion strength. The adhesion strength with a variation of bond coat layer thickness is discussed in terms of coating parameters.