Here's the scoop on 'aluminum':
Properties of Aluminum (from the wikipedia)
) (or aluminum
in North American English
; see spelling
below) is a silvery and ductile member of the poor metal
group of chemical elements
. Its atomic number
is 13. Aluminium is found primarily as the ore bauxite
and is remarkable for its resistance to oxidation (due to the phenomenon of passivation
), its strength, and its light weight. Aluminium is used in many industries to make millions of different products and is very important to the world economy
. Structural components made from aluminium are vital to the aerospace
industry and very important in other areas of transportation
and building in which light weight, durability, and strength are needed.Aluminium is a soft, lightweight metal
with normally a dull silvery appearance caused by a thin layer of oxidation
that forms quickly when the metal is exposed to air. Aluminium oxide has a higher melting point
than pure aluminium. Aluminium is nontoxic (as the metal), nonmagnetic, and nonsparking. It has a tensile strength of about 49 megapascals (MPa) in a pure state and 400 MPa as an alloy. Aluminium is about one-third as dense as steel
; it is malleable
, and easily machined and cast. It has excellent corrosion
resistance and durability because of the protective oxide layer.
Aluminium is one of the few metals which retains full silvery reflectance, even in finely powdered form, which makes it a very important component of silver paints.
Aluminium's crystal stracture is an FCC stracture, Hence the high ductility of the pure metal.
Aluminium mirror finish has the highest reflectance of any metal in the 200–400 nm (UV) and the 3000–10000 nm (far IR) regions, while in the 400–700 nm visible range it is slightly outdone by silver
and in the 700–3000 (near IR) by silver
, and copper
. It is the second-most malleable metal (after gold
) and the sixth-most ductile
. Aluminium is a good thermal
and electrical conductor
. Aluminium is capable of being a superconductor
, with a superconducting critical temperature of 1.2 Kelvin
The person below me now loves aluminum more than ever!