발간논문

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Vol.27, No.9, 845 ~ 854, 1989
Title
Joining of Partially Stabilized Zirconia to Ni - Cr Steel
유연철Yeon Chul Yoo, 하문영Moon Young Ha, 이용철Yong Chul Rheee, 정형진Hyung Jin Jung
Abstract
Studies have been conducted to clarify the joining phenomena of ZrO₂ to Ni-Cr steel produced by solid-state diffusion bonding with Al interlayer. The reaction layer at the steel/Al interface was observed clearly. By the EDX analysis, it was confirmed that this layer was a diffusion layer of Al and Fe. Reaction layer of the Al/ZrO₂ interface could not be detected in spite of good contact suggesting that the Al/ZrO₂ interface was bonded by a surface reaction in which a layer of less than 1㎛ in thickness was formed. It is concluded that the optimum conditions for bonding of ZrO₂ to Ni-Cr steel are of the Al interlayer of 0.6㎜, applied pressure of 100 MPa, temperature of 635℃, and time of 120 minutes. The interface shear strength of 50 MPa is obtained under these conditions.
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