From today’s Gazette Times:
“Basically, this was an accidental discovery,” said Mas Subramanian, the Milton Harris Professor of Materials Science in the OSU Department of Chemistry. “We were exploring manganese oxides for some interesting electronic properties they have, something that can be both ferroelectric and ferromagnetic at the same time. Our work had nothing to do with looking for a pigment.
“Then one day a graduate student who is working in the project was taking samples out of a very hot furnace while I was walking by, and it was blue, a very beautiful blue,” he said. “I realized immediately that something amazing had happened.”
What had happened, the researchers said, was that at about 1,200 degrees centigrade – almost 2,000 degrees Fahrenheit – this otherwise innocuous manganese oxide turned into a vivid blue compound that could be used to make a pigment able to resist heat and acid, be environmentally benign and cheap to produce from a readily available mineral.
Read more at the GT, or at OSU News and Communications.