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http://dx.doi.org/10.4191/KCERS.2009.46.4.379

Preparation and Characterization of Black Color Zirconia by Impregnation Method Used by Graphite  

Lee, Kwang-Ho (Booil Technology)
Ahn, Jong-Pil (Korea Institute of Ceramic Engineering Technology)
Park, Joo-Seok (Korea Institute of Ceramic Engineering Technology)
Lee, Yong-Seok (Booil Technology)
Lee, Byung-Ha (Department of Ceramic Engineering, Myongji University)
Publication Information
Journal of the Korean Ceramic Society / v.46, no.4, 2009 , pp. 379-384 More about this Journal
Abstract
Zirconia is widely used for structural materials in machinery due to its superior properties, such as high strength, high hardness, and high toughness. Zirconia generally has ivory or white color. Therefore many studies are performed for diversification of zirconia color, in order to be widely uitilized for decoration and machine parts which need distincfive color. In this study, graphite is used to prevent structural defect, to maintain superior properties, and to develop black color of zirconia by impregnation method. As specimen was impregnated at $1600^{\circ}C$ for 2 h, bending strength is 1221 MPa, density is $6.01\;g/cm^3$, hardness is 10.1 GPa, absorption coefficient is 0%, transmittance is Fail, chromaticity is 54. The results indicate that black zirconia has enough properties to be adopted as mechanical parts. Optimum impregnation time is 2 h for various observations.
Keywords
Zirconia; Graphite; Black; Impregnation; Mechanical parts;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
Times Cited By SCOPUS : 1
연도 인용수 순위
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