Tungsten powder.

Application:

• production of sintered and deformable semi-finished products and products (plate, sheet, rod, electrode, wire, crucible,
• sprayable target, products of alloys with molybdenum,
• production of electrical contacts (mixed with copper),
• production of composites with copper, nickel and other metals (pseudoalloys, heavy alloys),
• pyrotechnic means of directed action,
  
• as a compound filler for piezoelectric converters, etc.

Chemical composition of tungsten powder

Guaranteed chemical composition according to TU14-22-143-2000    
            Impurity content, μg/g (ppm) not more than

Typical tungsten content in PV powders is 99.986 - 99.987 %
The mass fraction of W is determined by subtracting from 100% the sum of all metal impurities controlled by mass spectrometry with inductively bound plasma ISP-MS (ICP-MS). Gas-forming impurities C, O, N, H, S, F, Cl are not taken into account in the calculation of the proportion of tungsten.

The average particle size of the powder, determined by the Kozeny-Carmen method of measuring the air permeability of the powder layer on the device type PSX-8A:
PV1 powder - from 0.8 to 1.7 μm,
PV2 powder - from 3.8 to 6.0 μm.
The content of particles larger than 4 μm in PV2 is not more than 40% (volume).

The bulk density of PV2 powder is from 3.0 to 5.5 g / cm3.

Note:

1. The test is performed on powder with the addition of 1.5% zinc stearate
2. Technological properties of the powder are monitored periodically, the values given in the table are reference.

Producer country: Russia, China,