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Platinum
Sputter Targets and Deposition Pieces
Purity Range: 99% to 99.99%
Platinum is a ductile, bright silvery white metal, malleable and a member of group 10 of the periodic table of elements. It has the third highest density, behind osmium and iridium. Platinum is a shiny silver-grey metal that is malleable and ductile.
Properties:
Formula: Pt
Atomic Number: 78
CAS No: 7440-06-4
Molecular Weight: 195.08
Color/Appearance: Metallic Gray
Melting Point: 1772oC
Boiling Point: 3827oC
Density: 21.45 gm/cm3
Resistivity: 10.6 μ-Ohm-cm at 20oC
Thermal Conductivity: 72 W/m.K
Coefficient of Thermal Expansion: 8.8 x 10-6/K
Z Ratio: 0.245
Sputter: DC
Max Power Density: 100 W/in2*
Type of Bond: Indium, Elastomer
* The ratings are based on unbonded targets and are material specific. Bonded targets should be run at lower powers to prevent bonding failures. Bonded targets should be run at 20 Watts/Square Inch or lower, depending on the material.
Platinum wire is not affected by air and water, but will dissolve in regular hot water, in hot concentrated phosphoric and sulfuric acids, and in molten alkali. It is as resistant as gold to corrosion and tarnish. Platinum wire will not oxidize in the air, no matter how strongly it is heated.
Platinum pieces and pellets are used in deposition processes. Platinum Sputtering Targets are used in the coating and electronics/computer industries. Platinum is evaporated under vacuum for the manufacture of semiconductors, fuel cells, and batteries.
