RECOMA® Samarium Cobalt: Custom Grades
In addition to the standard materials offered in our catalog, Arnold Magnetic Technologies also offers a wide range of custom material grades for special applications. We produce all of our own RECOMA alloys so we can modify our materials to fit your exact specifications.
Temperature-Compensated Materials (RECOMA STAB)
While our standard RECOMA grades enjoy a very low temperature coefficient, Arnold Magnetic Technologies can further modify RECOMA to have an absolute reversible temperature coefficient as low as 0 ppm/°C, creating a series of products called RECOMA STAB. This can be done with either our Sm2Co17 or SmCo5 alloys. The modification to reduce the temperature coefficient does result in a tradeoff in remanence, as described by the graph below.
Because this change in remanence is very predictable, the temperature compensation process is also often used to produce materials of a tightly controlled, but non-standard, remanence.
The performance of RECOMA STAB will also depend heavily on the application it is being used in, therefore we recommend that you work with one of our engineers to determine the best material for your application.
High Temperature Materials ( RECOMA HT )
While traditional RECOMA is the material of choice in applications up to 300°C (572°F), our RECOMA HT series pushes the boundaries of high-temperature applications even farther by continuing to perform reliably to temperatures as high as 550°C (1022°F).
These special compositions have a lower remanence than our standard RECOMA grades, and there is a spectrum of options of varying temperature and magnetic performance curves. Your results will also depend on the nature of your application, and the loading of the material. For this reason, we recommend that your application be discussed with one of our application engineers to determine the grade best suited for you.
Low Coercivity Materials (RECOMA LM)
RECOMA LM for easier magnetizing. Sm2Co17 with reduced coercivity is used in cases where high magnetizing fields
are not available (complicated magnetizing patterns) or when the flux levels are to be adjusted by demagnetizing fields.