Patent ID: 7201810

Claim:
A rare earth alloy sintered compact comprising a main phase that has an average composition represented by the general formula: (LR 1-x HR x ) 2 T 14 A, where T is either Fe alone or a mixture of Fe and at least one transition metal element other than Fe; A is either boron alone or a mixture of boron and carbon; LR is at least one light rare earth element; HR is at least one heavy rare earth element; and 0<x<1; wherein the rare earth alloy sintered compact includes crystal grains, each including at least one main phase of a first type and a plurality of main phases of a second type, or each including a plurality of main phases of a first type and at least one main phase of a second type, each of the main phases of the first type having a composition represented by (LR 1-p HR p ) 2 T 14 A (where 0≦p<x), each of the main phases of the second type having a composition represented by (LR 1-q HR q ) 2 T 14 A (where x<q≦1).