| 摘要 |
<p>A solid material for magnet containing a R-Fe-N-H type magnetic material as a primary component is produced by incorporating hydrogen into a rare earth element-iron-nitrogen type magnetic material powder having a rhombohedral or hexagonal crystal structure, preparing a green formed compact in a magnetic or non-magnetic field, and subjecting the green compact to a shock compaction by the use of an underwater shock wave while preventing the decomposition of a R-Fe-N-H type magnetic material by suppressing its residual temperature after the shock compaction to a temperature not higher than the decomposition temperature of the R-Fe-N-H material (ca. 600°C at an ordinary pressure) through utilizing the characteristics of a shock compaction, such as ultra-high pressure shearing property, activating function and short time phenomenon.</p> |
