Porcelain in Song and Yuan Dynasty
宋元时期的陶器
During the Song and Yuan dynasties porcelain was made at Jingdezhen and other kiln sites in southern China using crushed and refined China stone alone, but by the early eighteenth century china clay was being added to the china stone, in about equal proportions. Porcelain bodies made from china stone fire at a lower temperature, in the region of 1 200 degrees Celsius, than those made with a mixture of china clay and China stone, which require firing in the region of 1 350 degrees Celsius. Chinaclay when added to the body material produced a porcelain of great whiteness and of great strength. Whiteness, in particular, was a much sought after property of porcelain, especially that used for blue and white wares.
宋、元时期的瓷器在景德镇和中国南部的其他窑里制成，采用粉碎和提炼的瓷石制作，但到十八世纪初瓷土被加入瓷石里，比例大约相同。瓷体用瓷石在较低的温度下烧制而成，大约1200摄氏度，然后与瓷土和瓷石相混合制成瓷胎，这需要在1350摄氏度的温度下烧制而成。瓷土添加到瓷体的制作材料使其变得更强硬和颜色更白。白度，尤其是瓷的属性后的一个非常受欢迎的特性，特别是用于蓝色和白色的商品中。
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