Casting techniques for metallic objects have been enhanced by incorporating sound treatment. Zohair Sarajan, from Islamic Azad University and Farzad Karami Sheikhiabadi from Shahid Sadughi Technical School, both in Iran, outline how applying noise to the molten metal increases density and strength.
Research into stir casting of a metal composite has shown increased resistance to dry sliding wear. Materials scientists Zohair Sarajan, Mehrdad Soltani and SeidAbbas Hoseininejad from Iran outline the process employed.
South Wales is not only famous for its coal mining industry, it was once the epicentre of copper production. Dr Tehmina Goskar, Research Officer for the Global and Local Worlds of Welsh Copper Project, recounts the region’s colourful history.