| 摘要 |
PURPOSE:To always apply induction beating to the deseased part to the prescribed temp. range without requiring particular control by incorporating specific transition metals, semimetals, Cr, and Mo and also specifying the range of the Curie temp. CONSTITUTION:A temp. sensitive amorphous alloy for thermothenapy has a basic composition represented by (Fe, Ni, Co)M1M2. Transition metals of Fe, Ni, and Co are used by one kind or more. M1 means Cr and Mo and has functions of lowering the Curie temp. and simultaneously providing corrosion resistance, and the content of M1 in the alloy is regulated to about 12-13atomic%. The lowering of the Curie temp. is important for magnetic material for soft heating, and it enables local heating up to a canser treatment temp. and also the maintenance of the treatment temp. M2 means one or more elements among the semimetals P, C, Si, and B, and the content of M2 in the alloy is regulated to about 10-30atomic%. Since the above alloy has a Curie point as low as 42-90 deg.C, heating up to the prescribed temp. correlated with the Curie temp. or above can be prevented even if the external magnetic field is increased. |
