인베스트먼트 주조법에 의해 제작된 조선시대 금속활자의 주형재료

• Published in: 대한금속·재료학회지, 48(6) pp. 551 - 556
• Main Authors: 박학수, 윤의박
• Format: Journal Article
• Language: Korean
• Published: 대한금속·재료학회 01.06.2010
• Subjects: 재료공학
• ISSN: 1738-8228; 2288-8241

In this report, we describe mold materials that were used to produce movable metal type by the investment casting method during the Joseon dynasty period in Korea. Samples were obtained from the Wibuinja collection, which is held by the National Museum of Korea. Most of the mold material remnants were found in the depressed areas of the movable type specimens, and we therefore performed non-destructive analyses including XRF, EDS, and XRD. Through these analyses, we were able to identify the mold remnants as hydrocerussite [trilead dihydroxide dicarbonate, Pb3(CO3)2(OH)2] formed in platy hexagonal crystallites. Hydrocerussite was first used to make white pigments and cosmetics in ancient Greece, but this is the first report of hydrocerussite used as mold material applied around a disposable pattern for investment casting. The results of this study will further the understanding of the production process for early movable metal type and ancient casting technologies. KCI Citation Count: 1