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저자명
이광호,이용석,박주석,이병하,Lee. Kwang-Ho,Lee. Yong-Seok,Park. Joo-Seok,Lee. Byung-Ha
간행물명
한국세라믹학회지
권/호정보
2008년|45권 4호|pp.214-219 (6 pages)
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한국세라믹학회
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The zirconia ceramics are widely used because of their excellent mechanical properties. Recently, many researches to make a colored zirconia was achieved to satisfy the individual aesthetic requirements. In this study, the synthesis of black-color spinel-based inorganic pigments which are stable above $1400^{circ}C$ and the fabrication of black-colored zirconia using the synthesized pigments are investigated. Inorganic pigments which have spinel structure and near black color were synthesized by a solid state reaction method using a $Fe_2O_3,;Cr_2O_3$, CoO and NiO powder as a starting materials at $1600^{circ}C$. Most of synthesized pigments were black colored spinel phases and single spinel phase was successfully synthesized at the composition range of $Cr_2O_3:25{sim}35%,;Fe_2O_3:45{sim}55%$, CoO:20% and NiO:$6{sim}10%$. The black-colored zirconia was fabricated at $1410^{circ}C$ with the 5 wt% synthesized pigments and their properties were evaluated. The results showed that the strength value was more than 848 MPa, absorption rate was 0.1%, the brightness of color was $L^*:40{sim}42$, the tone of color is $a^*:0.2{sim}0.8$ and $b^*:-1.1{sim}2.4$. As a result, the black-colored zirconia was suitable for a artificial jewelry or decoration zirconia goods.