浸渗掺杂技术制备彩色氧化锆陶瓷

Preparation of colorful zirconia ceramics by liquid precursor infiltration

摘要:

本文采用液相前驱体浸渗法掺杂技术,在ZrO₂坯体引入有色离子,通过扩散溶入基体,制备了颜色纯正、掺杂均匀的黑、蓝、粉、绿色氧化锆陶瓷。XRD分析表明,样品的主晶相为氧化锆四方相。采用CIE L*a*b*系统研究了样品的色度,确定四种颜色样品具有相应的色度。SEM分析表明晶粒粒度均匀,无明显缺陷。力学性能表明几种彩色陶瓷具有较高的强度和韧性。

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.}