Manufacturing Industry
Mineral ores treated with microwaves break more easily. (Materials Progress: Forming/Processing).
Advanced Materials & Processes, July, 2003
A process in which mineral ores are treated with microwaves to weaken the rock and reduce energy requirements during grinding has been announced by the University of Nottingham, England. Research has focused on the principle that rocks are made of many different minerals, some of which heat rapidly and expand when subjected to microwaves, while others do not heat or expand at all.
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The resulting stress causes the rock to weaken and crack, meaning that it will fall apart ...
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