Are ceramic magnets heat resistant？

Ceramic magnet is a kind of cost-effective permanent magnetic material, also called ceramic ferrite magnet, mainly used in some low-end products, such as refrigerator stickers, door magnets, whiteboard magnets, packaging boxes, speakers, etc., so is the ceramic magnet heat-resistant? Can it be used in some high temperature environment?

The following picture shows ceramic ferrite magnet ring 12mm OD

Ceramic magnets (ferrite magnets) usually have good heat resistance, can withstand temperatures of 250 ℃, this temperature resistance can meet most of the application scenarios, the only shortcoming is that it is relatively weak magnetic, so it limits its application.

If your application environment is lower than this temperature, you can use it without worry, provided that the magnetic properties can meet the requirements.

However, if the temperature exceeds this temperature, such as 300℃, the magnetism of ceramic magnets will be irreversibly demagnetized, at this time, we can consider samarium cobalt magnets with stronger temperature resistance.

Overall, ceramic magnets have high endowment coercivity, so they perform well at high temperatures, making them a cost-effective choice for many high-temperature applications.

Other articles with more related clicks;

List of high temperature resistance permanent magnets

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3 types of ferrite permanent magnets and their characteristics