고대 금속활자의 복제를 위한 성분분석과 열역학적 주의 점

Abstract

Department of New Materials Eng., Chungbuk National University, Cheungju 361-763, Korea(Received May 18, 2012 ; revised June 28, 2012 ; accepted June 28, 2012)Abstract‘Jikjisimcheyocheal (Jikji afterwards)’ is known as a first book printed by the metal type in the world..The metal type used for printing this book has not been found yet. To help for replicating the original metaltype, it is required to investigate the composition analysis of the copied metal type. In this study, the com-position analysis and thermodynamic care for replicating of ancient metal type was performed on the basisof an analytical reports concerned with the ancient metal type which made after Jikji printing. Metal typeswere made by remelting and casting of the mother alloy which came from a cast of a mixed metals inaccordance with the composition revealed in the literatures. Change of composition during remelting of motheralloy and casting of metal was detected by the EDS analysis. The reasons for variation in composition werediscussed by metallurgical and thermodynamic point of view, and a mixing ratio of metals to get the originalcomposition of ancient metal type is suggested. Some attention should be paid on mixing, melting and castingof metals to get an objected composition for copy of ancient metal type.