Recent Examples of dysprosium from the Web
The 16 million tons of materials could contain 780 years worth of yttrium, 620 years worth of europium, 420 years worth of terbium, and 730 years worth of dysprosium.
But Reuters notes that while neodymium costs about $100 per kg and dysprosium costs about $400 per kg, lanthanum and cerium cost about $5 to $7 per kg.
The new magnet Toyota developed also uses no terbium or dysprosium, which can be added to neodymium to improve its operability at high heat, above 100 degrees Celsius (212 degrees Fahrenheit).
The permanent magnets can be improved, too, by making them from strongly magnetic rare-earth materials such as dysprosium and neodymium.
Neodymium, dysprosium, and praseodymium are used in combination to create the components of an electric engine.
The iPhone contains a chorus of eight rare earth elements: neodymium, praseodymium, dysprosium, terbium, gadolinium, europium, lanthanum, and yttrium.
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