Included in ceramics are porcelain such as pottery; abrasives such as emery used on sand-paper, refractories such as tantalum carbide, with a melting temperature of about 3870 centigrade, and structural clay such as brick.

• 陶瓷内部包括瓷器，砂纸一样的研磨剂，熔点达到3870摄氏度的难融钽化物和象砖块一样的结构黏土。