铬铁尖晶石黑色哑光釉的呈色探析  

Analysis of Coloration of Chromium-Iron Spinel Black Matte Glaze

作　　者：艾蝶 邓腾飞[1] AI Die;DENG Tengfei(State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070

出　　处：《硅酸盐通报》2025年第3期1102-1109,共8页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金面上项目(52274306)。

摘　　要：通过调控铬铁尖晶石中铁铬比,在1200℃条件下,烧制出了一系列铬铁尖晶石黑色哑光釉,并研究了不同铁铬比条件下制备的黑色色料对哑光釉呈色的影响规律及呈色机理。结果表明,当色料配方为m(Fe_(3)O_(4))∶m(Cr_(2)O_(3))=80∶20(质量比)时,烧制成的釉黑色最深,其L^(*)、a^(*)与b^(*)值分别为15.90、-0.75、0.94,釉中n(Fe^(3+))∶n(Fe^(2+))=60.38∶39.62(摩尔比),Fe^(2+)的含量最高,有利于黑色的加深。釉呈黑色是由Fe^(3+)、Fe^(2+)和Cr^(3+)三种离子在可见光下光学效果的叠加所导致的,其中四配位的Fe^(3+)呈棕红色,六配位的Cr^(3+)呈绿色,六配位的Fe^(2+)呈青绿色,三种颜色叠加,能吸收可见光的所有波长,使釉呈现出黑色。所制备的黑色哑光釉主要晶相为硅灰石相,硅灰石晶粒随机分布在釉中,晶粒尺寸在10μm以内,产生消光效果,使釉面具有柔和哑光质感。A series of chromium-iron spinel black matte glazes were prepared at 1200℃by adjusting the ratio of chromium to iron in chromium-iron spinel.The influences of black pigments prepared under different iron-chromium ratios on the coloration of matte glazes and the coloration mechanism were studied.The results show that when the pigment formula is m(Fe_(3)O_(4))∶m(Cr_(2)O_(3))=80∶20(mass ratio),the glaze is the darkest,and its L^(*),a^(*)and b^(*)values are 15.90,-0.75 and 0.94,respectively.The n(Fe^(3+))∶n(Fe^(2+))=60.38∶39.62(molar ratio)in the glaze,the content of Fe^(2+)is the highest,which is conducive to the appearance of black.The glaze is black because of the superposition of the optical effects of Fe^(3+),Fe^(2+)and Cr^(3+)under visible light.The four-coordinated Fe^(3+)is brownish red,the six-coordinated Cr^(3+)is green,and the six-coordinated Fe^(2+)is green.The superposition of the three colors can absorb all the wavelengths of visible light and make the glaze appear black.The main crystal phase in the black matte glaze is wollastonite phase.Wollastonite grains are randomly distributed in the glaze,and the grain size is within 10μm,which produces a matting effect and makes the glaze produce a soft matte texture.

关 键 词：铬铁尖晶石 黑色釉 哑光 铁铬比 硅灰石 

分 类 号：TQ174[化学工程—陶瓷工业]