Are there any non-breakable magnets?

First of all, to tell you that most of the magnets are fragile, there is no magnet quality, here most of the said, because there are - a small part of the magnet material is not so fragile, after the following I will also give you an introduction. Including the black magnets we played as children, only to learn the scientific name of ferrite magnets, some friends will say that this material magnets are not so fragile, seems to have a point, in fact, the magnet fragile with its shape, thick and thin relationship, as a child from the speaker removed the magnet is usually thicker. Plus ferrite magnet suction is not very strong, adsorbed to the surface of ferrous objects or magnets hit each other, the impact force is much smaller than the strong magnetic, this way will not feel too fragile. When the ferrite wall thickness of 1mm, or thinner, is also easy to break; Then there is the strongest magnetic material sintered Qin iron boron magnets, this magnet is recognized as a strong magnetic force, the application is also more, is also very easy to break, 2 strong magnets on the suction of the basic will be rotten, the thickness of the magnet will fall off the corner, the magnet thin point will be directly from the middle of the crack. Diamond magnets, is the second strongest magnetic magnets today, with a high maximum magnetic energy product (BHmax), high coercivity, fragile, easy to crack. The maximum working temperature can reach 350°C, negative temperature is not limited, in the working temperature above 180%C, its and temperature stability and chemical stability are more than dun iron boron permanent magnet material.
These belong to the sintering process, is also the most common and widely used several materials, in addition, there are several motors with more materials, today also
To tell you about the bonded Chin-iron-boron magnets, bonded Chin-iron-boron is also fragile, usually thin wall thickness, about 1mm, dropped on the ground basically scrapped. Then there is an injection molding magnet, because injection molding magnet belongs to the injection molding process, the composition contains nylon, so, from the mechanical properties, injection molding magnet is not so easy to break Summary: permanent magnets fragile sintered ferrite magnets, sintered dun iron boron magnets, bonded dun iron boron touch iron, sintered color diamond magnets. Injection molded magnets are relatively less fragile, there are also magnets like the strong magnetic Chin magnets wrapped in glue is not fragile.