Des aimants puissants sans "terres rares".

Ca parle de Nd2Fe14B, de SmCo5 ... bref, perso je n'y comprends pas grand chose =)

US lab cracks the code for building powerful magnets free of rare earth metals

interestingengineering - US lab cracks the code for building powerful magnets free of rare earth metals

Source: interestingengineering.com