News tagged with heat treatment

Removing color from brown diamonds

Diamonds come in all colours with price tags to match - ice-white, blue and pink attract high prices and stones with brown hues the least. But now that brown diamonds can be heat-treated to remove the darker colour to produce ...

dateFeb 16, 2015 in Condensed Matter
shares26 comments 0

Using cattails for insulation

A growing number of homeowners are insulating their walls in order to lower energy costs. They opt for the cheap variety, polystyrene. Yet there are environmentally-friendly alternatives: Cattails, for instance, are superbly ...

dateMay 15, 2013 in Engineering
shares0 comments 0

Rail production that is fast and energy efficient

A new hardening technology used in the production of heavy duty rails saves energy and increases productivity. The Siemens' IdRHa+technology will now be used commercially for the first time in a production line operated by ...

dateMar 25, 2013 in Engineering
shares0 comments 2