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Современные магнитные материалы Магниты из сплава неодим-железо-бор и самарий-кобальт известны также как редкоземельные магниты, так как в их состав входят элементы редкоземельной, или лантаноидной, группы периодической системы элементов. Эти магниты являются сильнейшими из постоянных магнитов, и их трудно размагнитить.
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Sm-Co Самарий-Кобальт Компания НПП «Редмаг» предлагает широкий спектр редкоземельных постоянных магнитов. на основе сплавов самарий-кобальт (Sm-Co), по величине магнитных характеристик соответствующих современному зарубежному уровню и требованиям отечественных стандартов ГОСТ Р52956-2008 и ГОСТ 21559-76.
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В производстве самарий кобальтовые магниты различают двух основных типов: 2/17 (состав 50% самарий, 50% кобальт); 1/5 (состав 25% самария, 50% кобальта, 18% железа, 5% меди, 2% гафния). Какие они, никто не знает, а делать РФА не где. Железо и медь не интересны, но если там попадётся гафний, его тоже было-бы неплохо …
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