MTE111 Chapter Notes - Chapter 1: Fluorine, Extended Family, Ductility
9 Jan 2017
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Document Summary
It is strong and can be readily formed into practical shapes. Its extensive, permanent deformability, or ductility, is an important asset in permitting small amounts of yielding to sudden and severe loads. Al2o3 is an example of a ceramic substance. Ceramics are usually more chemically stable and have higher melting points, which make it a popular refractory (high-temperature resistant material). However, ceramics are quite brittle unlike metals which are ductile. Sio2 (silica) is the basis of a large and complex family of silicates, which includes clays and clay like minerals. The vast majority of commercially important ceramics are chemical compounds made up of at least one metallic element and one of five non metallic elements (c,n,o,p, or s). Metals and ceramics previously introduced are crystalline, which means that their constituent atoms are stacked together in a regular, repeating pattern.
