Grindability of dental magnetic alloys

Eisei Hayashi, Masafumi Kikuchi, Osamu Okuno, Kohei Kimura

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)


    In this study, the grindability of cast magnetic alloys (Fe-Pt-Nb magnetic alloy and magnetic stainless steel) was evaluated and compared with that of conventional dental casting alloys (Ag-Pd-Au alloy, Type 4 gold alloy, and cobalt-chromium alloy). Grindability was evaluated in terms of grinding rate (i.e., volume of metal removed per minute) and grinding ratio (i.e., volume ratio of metal removed compared to wheel material lost). Solution treated Fe-Pt-Nb magnetic alloy had a significantly higher grinding rate than the aged one at a grinding speed of 750-1500 m·min-1. At 500 m·min-1, there were no significant differences in grinding rate between solution treated and aged Fe-Pt-Nb magnetic alloys. At a lower speed of 500 m·min-1 or 750 m·min-1, it was found that the grinding rates of aged Fe-Pt-Nb magnetic alloy and stainless steel were higher than those of conventional casting alloys.

    Original languageEnglish
    Pages (from-to)163-171
    Number of pages9
    JournalDental materials journal
    Issue number2
    Publication statusPublished - 2005 Jun


    • Fe-Pt-Nb magnetic alloy
    • Grindability
    • Magnetic stainless steel

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Dentistry(all)


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