 Scandium is Latin for Scandinavia,where it was first discovered in1869 Scandium is a rare, hard, silvery,rough, very da...
 Mainly used in aluminumalloys for• Aerospace components• Sports equipment (bikes,golf clubs, bats, firearms) Also used ...
 Titanium is similar in weight andstrength and is much more common(cheaper) than scandium. When added to aluminum,scandi...
Scandium
Upcoming SlideShare
Loading in …5
×

Scandium

267 views
199 views

Published on

for more downloads visit www.mechanical-online.com

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
267
On SlideShare
0
From Embeds
0
Number of Embeds
7
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Scandium

  1. 1.  Scandium is Latin for Scandinavia,where it was first discovered in1869 Scandium is a rare, hard, silvery,rough, very dark metallic elementthat develops a slightly yellowishor pinkish tint when exposed to air First prepared in its metallic formin 1937Physical propertiesPhase solidDensity (near r.t.) 2.985 g·cm−3Liquid density at m.p. 2.80 g·cm−3Melting point1814 K(1541 °C, 2806 °F)Boiling point3109 K(2836 °C, 5136 °F)Heat of fusion 14.1 kJ·mol−1Heat of vaporization 332.7 kJ·mol−1Specific heat capacity (25 °C) 25.52 J·mol−1·K−1Youngs modulus 74.4 GPaShear modulus 29.1 GPaBulk modulus 56.6 GPaPoisson ratio 0.279Brinell hardness 750 MPaCAS registry number 7440-20-2
  2. 2.  Mainly used in aluminumalloys for• Aerospace components• Sports equipment (bikes,golf clubs, bats, firearms) Also used in highintensity lights• Scandium Iodide added tomercury vapor lamps forTV cameras• Some types of light bulbsscandium provides the highest increment of strengthening per atomicpercent of any alloying element when added to aluminum..Night Guard™ Features• Strong, Lightweight Scandium AlloyFrames
  3. 3.  Titanium is similar in weight andstrength and is much more common(cheaper) than scandium. When added to aluminum,scandium lowers the rate ofrecrystallization and grain-growthin weld heat-affected zones. Scandium does increase analuminum alloy strength somewhat,but is primarily added for thebenefit of stronger welds.• Scandium-aluminum alloys originallyused on Russian submarine-launchedballistic missiles• Made strong missile nose cones andstrong tail fin welds enabling missiles topierce arctic ice caps when launchedfrom below the surface

×