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http://dx.doi.org/10.9725/kts.2022.38.6.255

A Study on the Tetrahedral Amorphous Carbon (ta-C) Coating on Medical Polymer Materials for 3D Printing Artificial Teeth  

Jang, Young-Jun (Korea Institute of Materials Science (KIMS))
Kim, Jongkuk (Korea Institute of Materials Science (KIMS))
Shin, Chang-Hee (Affiliated Research Institute, J Materials Co., Ltd)
Yu, Sung-Mi (Dept. of Nursing, GwangJu Health University)
Publication Information
Tribology and Lubricants / v.38, no.6, 2022 , pp. 255-260 More about this Journal
Abstract
This research presents tetrahedral amorphous (ta-C) coating on the artificial tooth for improving the durability and functionality (esthtics, foreign body of tooth) by filtered cathodic vacuum arc (FCVA). A differentiated coating method is required for a ta-C coating on polymer owing to the low melting point of the polymer, inter-facial adhesion, low friction, and non-conductivity. Herein, ta-C coating is applied below 50℃, and the potential difference of the carbon plasma drawn to the substrate was controlled by applying a positive duct bias voltage without using a substrate bias voltage. Consequently, the ta-C coating with a thickness of 70nm using the duct bias condition of 20V with the highest plasma intensity satisfies the esthetics of the artificial tooth and had a 5B level of inter-facial adhesion. In addition, the composite hardness of ta-C/polymer is 380 MPa, and correlations with esthetics, sp3 bonding, and mechanical properties. The friction coefficient (CoF) of the ta-C coating in a water-lubricated environment is 0.07, showing a six-fold reduction in CoF compared with that of a polymer.
Keywords
3D Printing; Medical polymer resin; Artificial teeth; ta-C; Composite hardness;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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