为降低制备成本，有效利用工业废弃物，以赤泥作为氧化铁主要来源，在1120℃左右烧成，制备出了较为理想的低温红油滴釉。探讨了釉组成中ZnO、B2 O3、CaO、MgO、Fe2 O3、Al2 O3等氧化物含量对釉面光泽度、油滴形成的影响。研究发现，低温油滴釉的形成主要基于釉的分相；B2 O3、ZnO的引入不仅可促使釉分相，并能降低釉的熔融温度增加基础相的透明度，从而得到光泽度良好的低温油滴釉；调整CaO、Al2 O3等的含量可以控制分相的产生及分相的结构；Fe2 O3会富集在油滴状的微相中；ZnO、MgO对油滴釉的颜色有较大影响，增加ZnO的含量则油滴釉由黑色变为棕红色，增加MgO的含量则油滴釉由棕色变为黑色。研究了釉层厚度对油滴形成的影响，釉层厚度为1~1.5 mm时形成的油滴效果最好。
In order to reduce the preparation cost and recycle industrial waste, low temperature re d oil drop glaze was preparated at about 1120 ℃ which using red mud as main sources of iron oxide. The effects of the contents of Al2 O3 ,B2 O3 , CaO, MgO ,Fe2 O3 ,ZnO on the glaze glassiness and the red oil drop effect were studied. The results show that the formation of the oil drop glaze mainly based on the phase separation of the glaze. B2 O3 and ZnO can impel glass phase separation, reduce the melting temperature and increase the transparency of the glaze. CaO and Al2 O3 can control phase separation of the glaze and structure of phase separation. Fe2 O3 is enriched in oil droplets. ZnO and MgO have a great influence on the colour of the oil drop glaze, the colour of oil drop glaze changes from black to brownish red with the increase of ZnO, and the colour of oil drop glaze changes from brown to black with the increase of MgO. The effect of glaze thickness on the oil drop glaze were also studied, when the glaze thickness is 1-1. 5 mm, the glaze has the best oil drop effect.
参考文献
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