Samarium cobalt magnet (
Compared with ndfeb magnets: & ensp;
Ingredients: & ensp;
Ndfeb magnet: & ensp;
Rare earth neodymium metal & ensp;
Metal iron & ensp;
Nonmetallic element boron 1.
A small amount of added dysprosium & ensp;
Niobium & ensp;
Aluminum & ensp;
Copper & ensp;
Elements such as & ensp;
Samarium cobalt magnet 2:17: & ensp;
Rare earth metal samarium Sm: 23 -
Rare earth metal cobalt Co: 48 -
Iron metal elements Fe: 14 -
Copper metal elements Cu: 5 -
Zirconium is added a small amount of Zr: 2 -
Different performance & ensp;
Relatively speaking, samarium cobalt magnet overall performance than ndfeb weaker!
The different price & ensp;
Equal size of samarium cobalt magnet and performance ndfeb magnets, ndfeb were lower than the price of samarium cobalt!
Of course both the proportion of metal elements can be seen from above!
Ndfeb iron content is higher, the rare earth element content is less, and the price of iron is very cheap, so the summary of the price is cheaper!
Samarium cobalt magnet samarium cobalt and rare earth elements content of about 70%, so the price a little high!
High temperature resistance, oxidation resistance, corrosion resistant ability of different & ensp;
Ndfeb iron content is very high, so easy to oxidation corrosion, so to do plating processing, service life is largely determined by the effect of the coating!
And samarium cobalt magnet iron content accounts for only a small part, basically all is not easy to be oxidized corrosion of rare earth and metal elements, in general, do not need to make plating processing;
However, using or in order to prolong the service life of the environment is poor, beautify the appearance, do electroplating processing will be better!