A new platinum-based superalloy could potentially revolutionise the use of metals in the aviation industry, with work underway to get manufacturers to use the material.

Devised by scientists with the Platinum Development Initiative in South Africa and developd in conjunction with Mintek researchers, the superalloy works at higher temperatures than traditional nickel-based composites, offering a more effective and reliable operation.

First reported in May, the superalloy has been tested by the Platinum Development Initiative (PDI), with a view ultimately to commercial use.

Now Resource Investor reports that Mintek scientist are trying to get South African firms to pilot the material in small components such as a nozzle or valve.

Lesley Cornish, a scientist who heads the PDI, told Reuters: "We've got some very, very nice results which are comparable to the materials we're trying to replace, but ours can go to higher temperatures."

It is hoped the new alloys could replace current nickel-based alloys used in turbine blades, since the platinum should allow solidity at temperatures of 1,300-1,350 degrees Celsius compared to 1,150 degrees Celsius.

In addition, the new materials are more resistant to corrosion and last longer.

Professor Cornish says that if firms such as Rolls Royce and General Electric harnessed the material, platinum output could be increased by 200,000 to 500,000 ounces each year - meaning platinum demand would rise more than seven per cent.

Angloplats, Implats and Lonmin are all working on the new technology, with countries including South Africa, Germany, Britain and Japan all involved.



Ÿ Adfero Ltd