Cubic boron nitride - Ti/TiN composites: hardness and phase equilibrium as function of temperature

被引：62

作者：

Klimczyk, P

Benko, E

Lawniczak-Jablonska, K

Piskorska, E

Heinonen, M

Ormaniec, A

Gorczynska-Zawislan, W

Urbanovich, VS

机构：

[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

[2] Inst Met Cutting, Krakow, Poland

[3] Univ Bielsko Biala, PL-43309 Bielsko Biala, Poland

[4] Univ Turku, Dept Appl Phys, FI-20014 Turku, Finland

[5] Natl Acad Sci Belarus, Inst Solid State & Semicond Phys, Minsk, BELARUS

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2004年 / 382卷 / 1-2期

关键词：

composites; XANES; phase analysis; XPS; hardness; chemical synthesis; EXAFS; scanning transmission electron microscopy; thermal analysis;

D O I：

10.1016/j.jallcom.2004.04.140

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Theoretical and experimental studies of cubic BN mixed with Ti and TiN in the molar ratio 1: 1 are reported and compared with the properties of Ti and TiN films grown by the arc plasma deposition method on cBN substrate. Theoretical calculations show that Ti and TiN react with cubic BN forming new phases at 1000 and 1400degreesC. The cBN composites were prepared by high pressure hot pressing and the samples were subsequently annealed at 1000 and 1400degreesC. The samples after heat treatment were characterized using transmission electron microscopy (TEM). The X-ray absorption technique and X-ray photoelectron spectroscopy (XPS) were used to study the content of new phases formed in the cBN-Ti/TiN samples. The measurements of micro-hardness showed the significant differences in mechanical properties of samples. The amount and distribution of TiB2 phase in cBN-Ti/TiN composites are shown to be determining factors for the micro-hardness. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：195 / 205

页数：11

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