| http://www.w3.org/ns/prov#value | - where R represents an element or a mixture of rare-earth elements including yttrium, TM is a mixture, principally of iron, plus transition elements other than iron which can be partially replaced by other metal elements and/or other non-metallic elements, and X is one element or a mixture of elements such as B, N and other elements to enhance the coercive force of the magnet material.
|
