请输入您要查询的百科知识:

 

词条 earthenware
释义
earthenware
pottery
pottery that has not been fired to the point of vitrification and is thus slightly porous and coarser than stoneware and porcelain. The body can be covered completely or decorated with slip (a liquid clay mixture applied before firing) or it can be glazed. For both practical and decorative reasons, earthenware is usually glazed. To overcome its porosity (which makes it impracticable for storing liquids in its unglazed state, for example), the fired object is covered with finely ground glass powder suspended in water and is then fired a second time. During the firing, the fine particles covering the surface fuse into an amorphous, glasslike layer, sealing the pores of the clay body. There are two main types of glazed earthenware. One is covered with a transparent lead glaze; when the earthenware body to which this glaze is applied has a cream colour, the product is called creamware. The second type, covered with an opaque white tin glaze, is variously called tin-enameled, or tin-glazed (tin-glazed earthenware), earthenware, majolica, faience, or delft.
A crude, soft earthenware, excavated at a Neolithic settlement at Çatalhüyük, on the Anatolian Plateau of Turkey, and thought to be about 9,000 years old, is the earliest known pottery. Earthenware is still widely used in the 20th century, much of the commercially produced ware being heatproof and coldproof and thus practicable for cooking and freezing as well as for serving.
随便看

 

百科全书收录100133条中英文百科知识,基本涵盖了大多数领域的百科知识,是一部内容开放、自由的电子版百科全书。

 

Copyright © 2004-2023 Newdu.com All Rights Reserved
更新时间:2025/4/28 14:48:14