外加纳米铜对钧瓷釉层显微结构及呈色的影响

Effect of Cu Element on the Microstructure and Coloring of Jun Glaze

在钧瓷釉层中引入纳米级水溶性铜单质,经过同样烧制工艺煅烧后,钧瓷外观呈色和釉层微观结构都会发生明显变化。通过X-射线粉末衍射仪、扫描电子显微镜及X-射线能谱仪等检测手段,我们系统研究了铜元素的加入对钧瓷釉层显微结构及呈色的影响。结果表明:外加纳米铜单质的钧瓷烧制后,釉层由月白色变为天青色,同时釉层中二氧化硅晶体明显减少,釉层玻璃化;另外,铜元素可以在高温阶段与坯体及釉层中产生的二氧化碳、氧气、水蒸气等发生化合反应,减少气泡缺陷的产生。

The addition of water-soluble elemental copper nanoparticles can result in the significantchanges of the coloring and the surface microstructures of the Jun porcelain glaze, after the same calcining process. By using X-ray diffraction, scanning electron microscope and spectroscopy, we systematically investigated the effects of micmstructures and the coloring of the Jun porcelain glaze. The the copper results show energy dispersive X-ray addition on the surface that the coloring of the Junglaze changed from white to cyan or blue after the addition of elemental copper. Incidentally, the crystalline SiO2 were generally turned to be amorphous. Also, the additional copper can react with the carbon dioxide, oxygen, and water vapor generated in the glaze, and therefore stops the air vents getting into the glaze.