Helpful Conversions for Precious Metal Sputtering Targets
Precious Metal Targets are Sold by Weight in Troy Ounces (Toz)
Lb. Avoir. = 14.583 Troy Ounces
1 Troy Ounce = 31.1035 grams
1 Gram = 0.03215 Troy Ounces
1 Kilogram = 32.1507 Troy Ounces
In order to determine how much your purchase will weigh, follow the formulas below. The densities of common precious metals are listed as well.
Round Target
diameter X diameter X 0.7854 X thickness X density
Evaporation Wire or Pellets
diameter X diameter X 0.7854 X length X density
Planar Targets
thickness X width X length X density
Rotary Targets
outside diameter X 3.1416 X wall thickness X length X density
Density
Gold - 10.180
Silver - 5.525
Platinum - 11.301
Palladium - 6.322
Rhodium - 6.553
Example 1. 99.99% Pure Gold Round Target, 0.250" thick X 4" diameter
4 X 4 X 0.7854 X 0.250 X 10.180 = 31.982 troy ounces
Example 2. 99.99% Pure Silver Rectangular Planar Target, 0.125" X 4.475" X 14.75"
0.125 X 4.475 X 14.75 X 5.525 = 45.59 troy ounces |
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