Journal of Inorganic Materials

• Research Paper • Previous Articles     Next Articles

Influence of Joining Strength of Si3N4/S45C on Residual Stress

QIU J H; Nakamura S; Kawagoe M; Morita M   

  1. Department of Mechanical Systems Engineering; Faculty of Engineering; Toyama Prefectrual University; 5180 Kurokawa; Kosuge; Toyama 939-03; Japan
  • Received:1997-08-18 Revised:1997-09-17 Published:1998-08-10 Online:1998-08-10

Abstract: According to Si3N4/S45C joining sample with soft metal interlayer in the thermalload, the effect of residual stress on bending strength was studied.

Some results obtained are as follows. (1) The tension stress in the edge of Si3N4 section is mainly reason to affect the bonding strength. (2) There is a linear
relationship (σ0=-1.63σ+658.1) between the bending strength and the residual stress. (3) The heat cycle results in machining hardening of join samples,
so that the residual stress increases and at the same time the cracks formed make the strength decreased.

Key words: ceramics, metal, joining, residual stress, bending strength, heat cycle

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