チタンの砥粒反応性と研磨 Reactivity of Titanium with Abrasive Materials and Its Polishing

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著者

    • 宮川 修 MIYAKAWA Osamu
    • 新潟大学歯学部歯科理工学講座 Department of Dental Materials and Technology, Niigata University School of Dentistry

抄録

Titanium is a difficult-to-machine metal, due to its high reactivity with abrasives. The cutting rate of alumina is significantly low. In contrast, at higher rotational speed and greater grinding force, the cutting rate of carborundum is much greater, but accompanied by severe loss of the tool. Since titanium has low thermal conductivity, the grinding temperature influencing titanium-abrasive reactions should be kept from rising. Relatively low rotational speed and small force are recommended. In addition, the tool should not be depressed against the work during grinding but moved over the work, otherwise unfavorable results are yielded: abrasive attrition, chip loading and oxidation of the surface, or grinding burn. Since polishing is also a procedure of cutting by abrasives, inhibition of titanium-abrasive reaction is an important key to efficient polishing. Recently, two finishing techniques were successfully applied in dentistry, electrochemical buffing and mechanical buffing with colloidal silica as abrasive. When the reaction-inhibition mechanism is clarified in these techniques, a new development will be possible.

収録刊行物

  • 日本補綴歯科學會雜誌 = The journal of the Japan Prosthodontic Society

    日本補綴歯科學會雜誌 = The journal of the Japan Prosthodontic Society 42(4), 540-546, 1998-08-10

    Japan Prosthodontic Society

参考文献:  24件中 1-24件 を表示

被引用文献:  8件中 1-8件 を表示

各種コード

  • NII論文ID(NAID)
    10008170134
  • NII書誌ID(NCID)
    AN00197911
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    03895386
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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