Join Us in Prayer 1  âº. Stations of the Cross In this Holy Week we reflect on Jesus' journey to Calvary. 2  Emergency Response CRS responds to emergencies around the world serving those most in need. You can help.
A ceramic is an inorganic, nonmetallic solid material comprising metal, nonmetal or metalloid atoms primarily held in ionic and covalent bonds. The crystallinity of ceramic materials ranges from highly oriented to semi-crystalline, and often completely amorphous (e.g., glasses). Ceramics are also more chemically resistant and can be used in wet environments where steel bearings would rust. 2  In some cases, their electricity-insulating properties may also be valuable in bearings. 3  Two drawbacks to ceramic bearings are a significantly higher cost and susceptibility to damage under shock loads.
Ceramic is a broad term that includes earthenware, bone ware, pottery, and, yes, porcelain. The word ceramic is derived from a Greek word that means pottery, and describes any article made of natural clay hardened by heat.