| 摘要 |
The present invention relates to a magnetic head substrate comprising a sintered body containing 35% by mass to 60% by mass of alumina and 40% by mass to 65% by mass of a conductive compound. The conductive compound contains at least one selected from carbide, nitride and carbonitride of tungsten. The sintered body has a maximum crystal particle size of 4 mum or less (except for 0 mum). Furthermore, the present invention provides a magnetic head provided with a slider formed of the magnetic head substrate and a recording medium driving device provided with the magnetic head.
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