Si3N4-Al2O3-TiC-Y2O3 composites intended for the edges of cutting tools

被引:19
|
作者
Szafran, M
Bobryk, E
Kukla, D
Olszyna, A
机构
[1] Warsaw Univ Technol, Fac Material Sci & Sci Technol, PL-00524 Warsaw, Poland
[2] Warsaw Univ Technol, Fac Chem, PL-00664 Warsaw, Poland
关键词
Si3N4-Al2O3-TiC-Y2O3; composites; cutting tools;
D O I
10.1016/S0272-8842(99)00098-X
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
This paper is concerned with the synthesis of composites in the Si3N4-Al2O3-TiC-Y2O3 system. The materials obtained have a high density and a good fracture toughness (K-IC = 9.3 MPa root m). Machining tests show that the service life of the tool blades made of these composites may even he tenfold longer than that of commercial blades made of Si3N4 with an additon of Al2O3, MgO and Y2O3. (C) 2000 Elsevier Science Ltd and Techna S.r.l. All rights reserved.
引用
收藏
页码:579 / 582
页数:4
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