Reaction Bonding of <TEX>$ZrO_2$</TEX> and NiTi : Reaction Products Analyses on <TEX>$ZrO_2/NiTi$</TEX> Bonding Interface with AEM

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J. Korean Ceram. Soc. > Volume 30(11); 1993 > Article

Journal of the Korean Ceramic Society 1993;30(11): 949.

$ZrO_2$와 NiTi 합금의 반응접합 : 분석투과전자현미경을 이용한 $ZrO_2/NiTi$ 접합층 반응생성물 분석

김영정, 김환¹

성화대학교 이공학부 재료공학과
¹서울대학교 공과대학 무기재료공학과

Reaction Bonding of $ZrO_2$ and NiTi : Reaction Products Analyses on $ZrO_2/NiTi$ Bonding Interface with AEM

ABSTRACT

Microstructural development at the ZrO2/NiTi bonding interface and reaction products were examined and identified with SEM and AEM. Ti-oxide, Ti2Ni and Ni2Ti layer were observed whose thickness depends on bonding temperature typically. The development of Ti-oxide layer is related with oxygen ion in ZrO2 and liquid phase Ti2Ni. It is considered that compositional deviation from homogeneity and residual stress caused by thermal expansion mismatch are closely related with the formation of the Ti2Ni phase.