Nitriding processes, such as gas nitriding by exposing heated steel to ammonia ... and look forward to powerful magnets made with nothing but rust and fertilizer.

These are strong magnets that have been ground flat ... so he started to build a 20 x 20 x 100 mm one. It would be made out of alternating mild steel and brass plates. The steel plates would ...

Energy innovation can take many forms, and the variety in energy research was on display at the summit. ARPA-E, part of the ...

Permanent magnets can come in lots of different shapes ... Magnetic. The nut is made from steel. Steel is a magnetic material. Not magnetic. The spoon is made from wood. Wood is not a magnetic ...

Sagawa’s sintering process made for stronger magnets, with twice the strength of the samarium–cobalt magnets. In contrast, Croat’s melt spinning method allowed for a cheaper manufacturing ...

Proceedings of the American Academy of Arts and Sciences, Vol. 38, No. 19 (Feb., 1903), pp. 551-556 (6 pages) ...

You don't see too many objects made of pure iron but you do see lots of different things made of steel, which has iron in it. Try the activity to see which metal objects are magnetic. Then try another ...

The highest quality tamahagane can cost up to 50 times more than ordinary steel made using modern methods. While fired at high temperatures, the tamahagane is never allowed to reach a molten state.

The world's strongest permanent magnets made of neodymium measure around 1. ... the iron is best sourced from iron salts that ...