无铅、砷金红粉彩颜料的呈色机理  

Colouration Mechanism of Lead and Arsenic Free Gold Ruby Famille-Rose Pigments

作　　者：曹春娥[1] 卢希龙[1] 陈云霞[1] 沈华荣[1] 洪琛[1] 余峰[1] 

机构地区：[1]景德镇陶瓷学院,江西景德镇333001

出　　处：《硅酸盐学报》2011年第11期1734-1739,共6页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金(50862003)资助项目

摘　　要：采用X射线衍射、透射电子显微镜和能谱仪等研究了无铅、砷金红粉彩颜料彩烤前后的物相组成与显微形貌,用分光测色仪对样品进行色度及光谱分析,研究了其呈色机理,并探讨了彩烤制度对金胶粒子大小的影响。结果表明:无铅、砷金红颜料彩烤后呈红紫色是由于在光波作用下,金胶粒子产生局域表面等离子体共振,强烈吸收波长520 nm左右的绿色光所致。颜料彩烤后,大量粒径在20～30 nm的金胶粒子均匀分散于玻璃相中,色剂紫金泥与熔剂之间没有产生明显的溶解和生成新相,彩烤制度对金胶粒子大小影响不明显。The phase composition and micro-morphology of lead and arsenic free gold ruby famille-rose pigments before and after decoration firing were investigated by X-ray diffractometer,transmission electron microscope,and energy dispersive X-ray spectro-scope.The colorimetric and spectral analysis of the as-prepared samples was carried out using spectrophotometer to investigate the colouration mechanism of the pigments.The effect of the schedule of decoration firing on size of the colloidal gold particles was ana-lyzed.The results indicate that a large amount of colloidal gold particles with size of 20–30 nm are well dispersed in the glassy phase,appearing a ruby color,which is due to the strong absorption of green light of about 520 nm wavelength caused by the localized sur-face plasmon resonance of colloidal gold particles under visible light radiation.There was no clear dissolution and/or new phase forming reaction between Purple of Cassius and frit after decoration firing.The decoration firing schedule had little effect on the size of colloidal gold particles

关 键 词：金红 粉彩颜料 铅 砷 呈色机理:局域表面等离子体共振 

分 类 号：TQ174[化学工程—陶瓷工业]