Synthesis and Characterization of Nanostructured Diamond-like Carbon (DLC) Coatings for Mechanical Integrity & Reliability Improvement

Project: Research

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Diamond-like carbon (DLC) coatings have attracted widespread attention due to theirdesirable mechanical, optical, electrical, chemical and tribological performance. However,one of the key issues that limit the utility of DLC is the adhesion of this material to metallicsubstrates. The poor adhesion is mainly associated with the high stress level in these coatings.In this study, multilayered DLC coatings will be designed and closed field unbalancedmagnetron sputtering ion plating. After deposition, the DLC coatings will be characterizedand assessed systematically and comprehensively in terms of their hardness, fracturetoughness, fatigue, adhesion, residual stress, friction, wear, and thermal stability. In addition,a new analytical method is proposed in this study to measure the coating failure maximumshear stress at the coating surface. It is expected that the reliability and integrity studies of theDLC coatings from both theoretical and experimental viewpoints will open up newapplications for the industry.


Project number7004603
Effective start/end date1/09/169/05/19