Curie Temperatures of Various Permanent Magnets
The Curie temperature of permanent magnets can vary significantly depending on the type of magnet and its composition. Here are the approximate Curie temperatures for some common types of permanent magnets:
1. Neodymium Magnets: The Curie temperature for neodymium magnets typically falls in the range of 310°C to 400°C (590°F to 752°F), depending on the specific grade.
2. Ceramic Magnets (Ferrite Magnets): Ceramic magnets, or ferrite magnets, generally have a Curie temperature of around 450°C to 550°C (842°F to 1022°F).
3. AlNiCo Magnets (Aluminum-Nickel-Cobalt Magnets): AlNiCo magnets have a higher Curie temperature and can typically withstand temperatures of up to around 525°C (977°F) before experiencing demagnetization.
4. SmCo Magnets (Samarium Cobalt Magnets): SmCo magnets are known for their excellent thermal stability and can endure high temperatures. They typically have a Curie temperature of approximately 700°C to 800°C (1292°F to 1472°F) or even higher for certain grades.
It's important to note that these temperature ranges are approximate and can vary based on the specific grade and composition of the magnets. When using permanent magnets in high-temperature applications, it's crucial to consult the manufacturer's specifications to ensure that the magnets will perform as expected under those conditions.