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J. Korean Ceram. Soc. > Volume 46(4); 2009 > Article
Journal of the Korean Ceramic Society 2009;46(4): 379.
doi: https://doi.org/10.4191/kcers.2009.46.4.379
흑연 함침법에 의한 흑색 지르코니아의 제조 및 특성분석
이광호, 안종필1, 박주석1, 이용석, 이병하2
1한국세라믹기술원 기업협력센터
2명지대학교 신소재공학과
Preparation and Characterization of Black Color Zirconia by Impregnation Method Used by Graphite
Kwang-Ho Lee, Jong-Pil Ahn1, Joo-Seok Park1, Yong-Seok Lee, Byung-Ha Lee2
Booil Technology
1Korea Institute of Ceramic Engineering Technology
2Department of Ceramic Engineering, Myongji University
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.
Key words: Zirconia, Graphite, Black, Impregnation, Mechanical parts
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