看贴笔记(钧窑X34--盘标)
#钧窑瓷器#,#宋元瓷器#。
官钧天蓝釉上铜的着色方法分为下列几种:1、在天蓝乳光釉上以含铜薄釉浆涂刷、描画或着点,入窑烧成后,含铜色剂向边缘周围扩散,红色逐渐淡化,产生深浅浓淡,意象迷蒙的艺术感染力;2、釉料加入足够的铜色剂,施于器胎上,达到相当的厚度,烧成后成为有1毫米厚的红色层,铜红色剂是加到天蓝乳光釉料中,因此整个釉层既分相又分色,放大镜下可以看到蓝色乳光的流纹。
这类情况大多数是施于外釉,与内釉纯天蓝乳光钧釉并有明显兔丝纹者相对照而令人醒目;3、在较厚的红釉上施以薄层的天蓝乳光钧釉,烧成时两者反应,表面流淌,则无上层釉处依然成红色,两者反应处呈红紫色乳光,流淌处则呈现红、紫、蓝、白等兔丝纹,肉眼宏观看到有如朝霞,这就是常见的所谓窑变花釉,大多数是用在各式花盆的外釉,兔丝纹密集处连成一片,留下一些孤立的,面积很小的原来深红的斑点。相反,内釉先施无铜的天蓝乳光釉,然后上面薄施含铜的乳光釉料,烧成后,部分铜化合物挥发,依然是原来有兔丝纹的乳蓝,残留的铜形成红色色斑或流纹,等于天蓝釉上装点了一些红色丝绒状或毛发状装饰。
下面的图片大部分来自钧瓷高手大宋王朝、金中都等人的资料,在此感谢!
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