The comparisons of sliding speed and normal load effect on friction coefficients of self-mated Si3N4 and SiC under water lubrication

被引：162

作者：

Chen, M ^{[1
]}

Kato, KJ ^{[1
]}

Adachi, K ^{[1
]}

机构：

[1] Tohoku Univ, Dept Mech Engn, Sendai, Miyagi 9808579, Japan

来源：

TRIBOLOGY INTERNATIONAL | 2002年 / 35卷 / 03期

关键词：

running-in; load carrying capacity; sliding speed; hydrodynamic lubrication; boundary lubrication;

D O I：

10.1016/S0301-679X(01)00105-0

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The effects of sliding speed and normal load on friction coefficients of self-mated Si3N4 and SiC sliding in water after running-in in water were investigated with pin-on-disk apparatus at sliding speeds of 30 to 120 mm/s. normal loads of 1 to 14 N in ambient condition, The results showed that, after running-in in water, for two kinds of self-mated ceramics, friction coefficient increases with both decreasing sliding speed and increasing normal load when normal load is larger than a critical normal load. Friction coefficient was independent of normal load when normal load is smaller than the critical load. The lubrication film of Si3N4 under water lubrication exhibited larger load carrying capacity than that of SiC did. Stribeck curves indicated that, for self-mated Si3N4 ceramics, hydrodynamic lubrication will change into boundary lubrication abruptly when the sommerfeld number is less than a critical value; while for self-mated SiC ceramics, hydrodynamic lubrication will change into mixed lubrication and then into boundary lubrication gradually when the sommerfeld number is below critical value. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：129 / 135

页数：7

共 19 条

[11]

PRIVE DC, 1987, CHEM ENG COMMUN, V155, P149

[12] An analytical observation of the tribochemical reaction of silicon nitride sliding with low friction in aqueous solutions [J].

Saito, T ;

Imada, Y ;

Honda, F .

WEAR, 1997, 205 (1-2) :153-159

[13] THE EFFECTS OF THE SURROUNDING ATMOSPHERE ON THE FRICTION AND WEAR OF ALUMINA, ZIRCONIA, SILICON-CARBIDE AND SILICON-NITRIDE [J].

SASAKI, S .

WEAR, 1989, 134 (01) :185-200

[14]

STREHLOW WH, 1973, J PHYS CHEM REF DATA, V2, P169

[15]

TAKEBAYASHI H, 1989, J JPN SOC TRIBOLOGIS, V34, P119

[16]

TOMIZAWA H, 1987, ASLE TRANS, V30, P41, DOI 10.1080/05698198708981728

[17]

WONG HC, 1993, WATER LUBRICATION CE, P149

[18] The transition of wear mode during the running-in process of silicon nitride sliding in water [J].

Xu, JG ;

Kato, K ;

Hirayama, T .

WEAR, 1997, 205 (1-2) :55-63

[19]

Zhang B, 1998, JSME INT J C-MECH SY, V41, P285

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