釉泡是指陶瓷釉（GLAZE）上产生的碎裂气泡效果，在现代器皿上有时作装饰目的使用。利用普通釉料在加热条件下将会变为气态的材料颗粒就会制造出釉泡。钙或碳酸镁、硫酸钙和二氧化锰是其中一些能够制造这种效果的物质材料。偶而的起泡则称气泡痕（SPIT-OUT）。
表观缺陷主要表现为釉泡和氧化铁颗粒，且其集中于杯体下部外侧面。
The surface defect appeared mainly as air bubbles and ferroferric oxide drops which centred around the lower outer - field portion of the stoneware cup.
釉面扫描电镜结果显示，釉面质量稳定，气孔、釉泡少，釉面光泽度高。
SEM results show us that the quality of the glaze is steady, the air vent is few and the glossing is high.
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