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A neodymium magnet of a few tens of grams can lift a thousand times its own weight, and can snap together with enough force to break bones. These magnets are cheaper, lighter, and stronger than samarium–cobalt magnets. However, they are not superior in every aspect, as neodymium-based magnets lose their magnetism at lower temperatures [53 ...
A neodymium magnet (also known as NdFeB, NIB or Neo magnet) is a permanent magnet made from an alloy of neodymium, iron, and boron to form the Nd 2 Fe 14 B tetragonal crystalline structure. [1] They are the most widely used type of rare-earth magnet .
The "N, ND, or NS" prefix usually means Neodymium Iron Boron magnet alloy and the "Grade/number value" suggests that the alloy has a Maximum Energy Product of 38 MGOe. This magnetic characteristic is volume independent and only gives you an idea of what the net magnetic field of a magnet with a particular geometry will be.
On May 24, 2024, the Biden Administration announced a 25 percent tariff on rare earth magnets from China, set to take effect in 2026. This marks the first time that critical minerals, including rare earth magnets, have been specifically included in the tariffs. [53] Following the tariffs MP Materials put out a statement listing the tariffs.
Each piece connects to the next via magnets, making for a fun building experience regardless of your child's age. They can build houses, cars, and space ships. $50 at Amazon
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