Hart Materials Limited, a UK based supplier of metallic and composite particulate materials, is now offering a range of high purity carbonyl-based nickel powders within specific size ranges, currently not available in the market place.
Dr Tony Hart, Chairman of Hart Materials Limited, told Powder Metallurgy Review, “About four years ago the number of grades of carbonyl nickel powders available commercially was reduced to two specific products, one spherical powder and one filamentary product. Although these powders are very high quality materials the particle sizes currently available are not necessarily ideal for all applications. Hart Materials Limited has therefore developed technology to separate different size fractions from the basic spherical powder.”
As a consequence the company is now able to offer three different size grades:
- > 44 microns
- < 44 microns > 20 microns
- < 20 microns
The company states that products can be supplied with accurate particle size details and a basic chemical analysis. Further developments are in hand to produce an even finer grade with 100% of particles below 15 microns.
Dr Hart is a former employee of what was the International Nickel Research Laboratory in Birmingham, UK, and has a sound appreciation of the advantages of carbonyl nickel powders. Dr Paul Lansdell, who has been heading up the development project, graduated in metallurgy at Birmingham University and was later awarded his Doctorate in electrochemistry by the same establishment.