전기도금법으로 만든 니켈-티타니아 복합체에서 초음파 처리가도금층에 미치는 영향 연구
A study of the effects on the composition of the electrodeposited Ni-TiO2composite with the ultrasonic treatment
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In the present study, Ni-TiO2 composite coatings were electrodeposited in a sulfamate bath containing TiO2particles. The influence of the ultrasonic treatment on the co-deposition of TiO2 particles in the coating and the hardness of the electrodeposited Ni-TiO2 composite has been investigated. Three different ultrasonic treatments (pretreatment before the electrodeposition (pre-UT), pretreatment + applied during the electrodeposition (UT), and the electrodeposition without the ultrasonic treatment (w/o UT)) were performed. The Ni-TiO2 composite coatings are characterized using scanning electron microscopy (SEM), image analyzer,and hardness tester. Comparison of results indicates that the volume fraction is more important factor than the agglomerated particle size in terms of the strength improvement, and the strength of the electrodeposited Ni-TiO2 composite coatings is enhanced with pre-UT condition.
Abstract
In the present study, Ni-TiO2 composite coatings were electrodeposited in a sulfamate bath containing TiO2particles. The influence of the ultrasonic treatment on the co-deposition of TiO2 particles in the coating and the hardness of the electrodeposited Ni-TiO2 composite has been investigated. Three different ultrasonic treatments (pretreatment before the electrodeposition (pre-UT), pretreatment + applied during the electrodeposition (UT), and the electrodeposition without the ultrasonic treatment (w/o UT)) were performed. The Ni-TiO2 composite coatings are characterized using scanning electron microscopy (SEM), image analyzer,and hardness tester. Comparison of results indicates that the volume fraction is more important factor than the agglomerated particle size in terms of the strength improvement, and the strength of the electrodeposited Ni-TiO2 composite coatings is enhanced with pre-UT condition.
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