Materials - Terms
Abrasive A natural or artificial materials such as sandstone,emery, aluminium oxide or silicon carbide. Acid A chemical added to oil or fuel to increase it's effectiveness and obtain desirable qualities. Adhesives Materials or compositions that enable two surfaces to join together. An adhesive is not necessarily a glue which is considered to be a sticky substance since many adhesives are not sticky. Aggregate Small particles such as powderes that are used for powder metallurgy, that are loosely combined to form a whole also sand and rock as used in concrete. Allotropic metals Metals which exist in one lattice form over a range of temperature but at a certain temperature the lattice form changes to another type which is stable over another temperature range. Alloy A substance having metallic properties and is composed of two or more chemical elements, of which at least one is metal. Alloy steel Steel containing significant quantities of alloying...