The internal temperature of automobile driving motors rises to around 200 °C, which requires high residual magnetization and heat resistance. The coercivity of currently used neodymium-iron-boron ...
Did you know GM invented the domestic, affordable permanent magnet? Before this neodymium-iron-boron magnet came along in 1984, electric motors, generators, audio speakers, hard-disk drives, and the ...
An array of powder-metal parts. Powder metallurgy was practiced long before ancient artisans learned to melt and cast iron. Egyptians made iron tools using PM techniques back in 3,000 B.C. The ancient ...
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