Membership of Professional Societies 2014 -         Council of Asian Science Editors, Secretary-General 2014 -         Korean Council of Science Editors, Vice-President 2014 -         National Academy of Engineering of Korea, Member 2012           Materials Research Society of Korea, President 2008 - 2011 Korean Society for Thermophysical Properties, President 2006 -         Korean Society for Thermophysical Properties, President (2008 - ) 2005 -         Korean Society for Engineering Education, Vice-President (2009 - ) 2005 -         Korean Society of Semiconductor & Display Equipment Technology, Treasurer (2008 - ) 1995 -         Korean Materials Society, Vice-President (2007 - ) 1991 -         Korean Ceramic Society, Member 1991 -         American Ceramic Society, Member 1985 -         British Ceramic Society, Member Membership of Editorial Boards 2010 -         J. Japan Ceramic Scociety, Editorial Board 2007 - 2010 Korean Journal of Materials Research, Editor-in-Chief 2007 -         J. Semiconductor and Display Equipment Technology, Editorial Board 2007 -         Metal and Materials International, Editor 2006 - 2007 J. Korean Inst. Surface Engineering, Editor 2006 - 2012 SCOPUS Advisory & Content Selection Board (Elsevier) 2005 -         Advanced in Applied Ceramics, Editorial Board 2005 -         Advances in Technology of Materials and Materials Processing Journal, Editorial Board 2005 -         Solid State Phenomena, Editorial Board 2004 - 2005 Journal of the Korean Ceramic Society, Editor 2003 -         Materials Science Forum: Eco-Materials Processing & Design (Trans Tech Pub), Editor