Preparation of colorful zirconia ceramics by liquid precursor infiltration

Abstract:

_{:Preparation of colored zirconia by impregnation of liquid precursors Ceramic is a hot spot for preparing high-grade decorative materials. Colored zirconia ceramics produced on the market are only black and white, and common preparation methods such as mechanical mixing, sol-gel method, chemical coprecipitation are not suitable for the coloring of zirconia ceramics due to the low sintering temperature. In this paper, a series of blue, pink, green and black zirconia ceramics with pure color and uniform doping were prepared by the method of liquid phase precursor impregnation. XRD analysis showed that the main crystal phase of the sample was zirconia tetragonal phase. The CIE L * a * b * system was used to study the chromaticity of the samples, and the four color samples were determined to have corresponding chromaticity. SEM analysis showed that grain size was uniform and no obvious defects were observed. Mechanical properties analysis shows that several colored ceramics have high strength and toughness.}

Key words:Liquid precursor; Infiltration; Colored zirconia ceramics; Structure and performance