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.
Pottery is made by forming a clay body into objects of a required shape and heating them to high temperatures in a kiln which removes all the water from the clay, which induces reactions that lead to permanent changes including increasing their strength and hardening and setting their shape.