摘要
以钠长石、钾长石、烧滑石、高岭土、石英、石灰石和碳酸钡为主要原料,以氧化铁、氧化铬、氧化钴和氧化镍为着色剂,以硅氧碳(SiOC)为发泡剂兼着色剂,在烧成温度1310 ℃、保温时间30 min下制备蜂窝状蓝黑发泡艺术釉.主要研究了 SiOC、CoO和Fe2O3添加量对釉面颜色和发泡效果的影响规律.采用X射线衍射(XRD)和扫描电子显微镜(SEM)对釉层物相组成和微观结构进行表征.结果表明:当基础釉中外加SiOC 0.45%~0.75%、CoO 6.5%~8.5%、Fe2O31.7%~2.7%、Cr2O3 2.2%和NiO 0.4%时,可以获得釉面呈蜂窝状蓝黑色艺术釉.
Abstract
Honeycomb-like blue-black foaming art glaze was prepared at 1310 ℃ for 30 min using sodium feldspar,potassium feldspar,calcined talc,Kaolin,quartz,limestone and barium carbonate as the main raw materials;using Fe2O3,Cr2O3,CoO and NiO as colorants,using SiOC as a forming agent and colorant.The effect of adding contents of SiOC,CoO and Fe2O3 on foaming effect and glaze color were studied,and phase composition and microstructure of the glaze were also characterized using X-ray diffraction(XRD)and scanning electron microscopy(SEM),respectively.The results show that a honeycomb-like blue-black foaming art glaze with good effect can be obtained when SiOC 0.45%~0.75%,CoO 6.5%~8.5%,Fe2O3 1.7%~2.7%,Cr2O3 2.2%and NiO 0.4%are added to the basic glaze formula.