Speeding up solder search for aerospace

Nanoindentation is helping UK researchers to accelerate the search for reliable lead-free solders for use in electronics in aerospace. Scientists at Oxford University are characterising SAC materials, which are alloys of tin, silver and copper (Sn-Ag-Cu).

Probing lead-free solders in electronics

An engineer at the University of Leicester, UK, claims to have revealed, for the first time, the formation of crystallograhically-facetted voids in the ß-Sn matrix of lead-free solders during soldering and ageing. The discovery occurred during research to improve the reliability of lead-free solders in electronics.

Materials flow in mining and metals

The International Council on Mining and Metals (ICMM), based in London, UK, has launched a 23-point action plan for chemicals management in the supply chain as part of its Materials Stewardship concept. Dr Ben Davies, Senior Programme Officer at ICMM, discusses the initiative and its progress.
The Vecor brick is made from 95-98% fly ash

Fly ash bricks to enter market

A technology to manufacture bricks from waste fly ash from coal power stations will be put to the test in a new factory in Hebi, China.
High-power 635nm red laser bar. Courtesy of OSRAM Opto Semiconductors GmbH.

Lasers offer a BRIGHTER future

Healthcare, telecommunications and display technology may benefit from a ‘new generation’ of high-brightness semiconductor lasers that emit across the spectrum.