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专利名称：Titanium carbo-nitride complex silicon
nitride tool
发明人：Ogimoto, Shinya,Matsubara, Masaru,Kato,
Hideki,Ninomiya, Yasuhiro,Shintani, Kazuhiro
申请号：EP97108146.8申请日：19970520公开号：EP08598B1公开日：20020130
摘要：Titanium carbo-nitride complex silicon nitride tool is composed mainly oftitanium carbo-nitride and silicon nitride and contains 10 to 56 wt% of Ti, 11.6 to 51 wt%of Si and 1 to 21 wt% in total of one or two or more of Ce, Y, Yb and Dy. The tool ismainly composed of Si3N4 superior in both strength and resistance against thermalshock and TiCN superior in the effect of suppressing reactivity of Si3N4 with Fe andexhibiting high hardness. By using oxides CeO2, Y2O3, Yb2O3 and Dy2O3 as sintering aidso that the sum of the amounts of Ce, Y, Yb and Dy will be in the above range, both theresistance against flank notch (wear) of the end edge (Vn) and resistance against thermalshock are improved resulting in improved durability as compared to the conventionalsilicon nitride cutting tool.
申请人：NGK SPARK PLUG CO
地址：JP
国籍：JP
代理机构：Diehl, Hermann, Dr. Dipl.-Phys.
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