题目一：Tribology Coatings for Biological Applications
地点：实验三号楼201会议室
时间：2018.11.21 15:30-17:00
报告人：Gun-Hwan Lee
报告人简介：
Dr. Gun-Hwan Lee was born on May02, 1961 in the city ofGyung-gi (Korea). Graduated fromYon-sei Univ. in 1984 (Metal Science). Has gotMaster Degree from KAIST in 1986 andPh.D. fromNantes Univ. in 1986(Material Science). The same year joinedDepartment of Surface Engineering of Korea Institute of Materials Science and since 1999 isPrincipal Researcher andsince 2010 –TechnicalDirector ofKISE. Scientific interests are mainly in surfacecoatings at micro and nanoscale by using plasma technologies, electro-optic phenomena in flexible devices and development of plasma coating equipment. Author of more than 80 papers and 60 patents in surface coating technologies. Research Field: High Quality Transparent Conductive Oxides, Indium Free TCO Coatings and Interface Controls in the Multi Oxide Layers for Increasing the Opto-electrical Properties.Carbon coatings for bio applications. International Activity: International Conference Organizers of IUMRS-ICAM 2015 (Jeju, Korea), OMTAT 2013 (Kochi, India), JSAP-MRS Joint Symposia 2013 (Kyoto, Japan) etc. and Many of Plenary Speakers.
内容简介：
Multi-component ceramic coatings such as TiAlN, TiCrN, TiCrSiN and Hard carbon coatings (HCC) were usedin wide range of industrial applications, as these have excellent mechanical, chemical and biological properties. These coatings were synthesized by thevapour-phase method from an arc ion plating process. PVD(Physical Vapor Deposition) coating technologies werecommonly used in carrying out ceramic coatings, where the coating materials are vaporized from the source and then transported in the form of avapour through a vacuum or plasma environment to the substrates.
In recent years, 3-D printing technology has been rapidly developing and tends to apply it to the field of bioengineering such as bio-drills and artificial joints.However, the disadvantage of 3-D printing materials is that it is necessary to develop technology that can compensate for the deterioration of wear resistance characteristics.In this study, we will introducemulti-componentceramic coating technology that can complement the wear resistance characteristics of 3-D printing materials.Hardcarbon coating(HCC) refers to a class of amorphous carbon coatings which is predominantly composed of the graphite-like microstructure (sp2 hybridized carbon), and has been revealed high hardness as well as unique performances for applications in protective,lubricating and biological surfaces tobio-drill for dental implantations. Comparing with most of the other amorphous carbon coatings,HCC coating fabricated byan ion-plating technique exhibited good tribological performance with low friction and low wear. It endowed theHCC coating great potential to be used as the protectiveand low frictionworking surface operated in water environment includinghuman body. Interlayer design was important tothese performances ofHCC film in water environment. The nano-interlocked microstructure formed between the substrate and carbon layer in combination with the hard strengthening carbide particles formed inside the interlayer would result in the high load-bearing capacity ofHCC film coating under the sliding-friction condition in water environment. We developed successfully the bio-drills for dental implantations by using the HCC coating technologies.
题目二：Design and Syntheses of Hard Coatings for Industrial Applications
地点：实验三号楼201会议室
时间：2018.11.21 15:30-17:00
报告人：Kwang Ho Kim
报告人简介：
Prof.Dr.Kwang Ho Kim received his Bachelor degree in1980 from the Dept. of Metallurgical Engineering ofSeoul National University. After his BSc, he completedM.S. and Ph.Din1982 and 1986, respectively from Dept. of Materials Science and Engineering of Korea Advanced Institute of Science and Technology (KAIST). He is a professor in School of Materials Science and Engineering of Pusan National University and Director of Global Frontier R&D Center for Hybrid Interface-based Future Materials granted by Korea government since 2014. He is also taking charge of National Core Research Center for Hybrid Materials Solution since the year of 2006. He conducted as a president in Korea Institute of Surface Engineering Society in 2009-2010 and as a vice-president in Korean Ceramic Society in 2011, 2014. Hesuccessfully organized International Conference, HyMaP 2008, 2011, 2014, and 2017 as Chairman. His researches are focused to hybrid-interface materials for future innovations including design-syntheses-evaluation of nano-hybrid materials as well as hybrid-functional hard coatings.
内容摘要：
Hard-phase films have been extensively applied in various parts with superior mechanical properties like high hardness, wear resistance, low friction, etc. for many industrial applications. Recently, the electrochemical properties of hard layer are also spotlighted for waste-water treatments. In this presentation, two material-systems are discussed regarding the design- syntheses-evaluation.
Various new materials for the multi-function are designed. For example, various ternary, quaternary, and quinary nano-structured films in multi-component system are compared in sense of not only hardness but also other properties of corrosion, oxidation, friction etc. with research concepts of nano-hybrid and hybrid –interface and those technologies.
Boron-doped diamond (BDD) films have superior chemical stability and electrochemical properties. For the applications of waste-water treatment, the hard layers should have ideal interlayer structure and those multi-layered structure showed the excellent properties such as mechanical stability and electrochemical properties.
