The Effect of Temperature, Matrix Alloying and Substrate Coatings on Wettability and Shear Strength of Al/Al^sub 2^O^sub 3^ Couples

From: Metallurgical and Materials Transactions | Date: March 1, 2004| Author: | Copyright information

A fresh approach has been advanced to examine in the Al/Al^sub 2^O^sub 3^ system the effects of temperature, alloying of Al with Ti or Sn, and Ti and Sn coatings on the substrate, on contact angles measured using a sessile-drop test, and on interface strength measured using a modified push-off test that allows shearing of solidified droplets with less than 90 deg contact angle. In the modified test, the solidified sessile-drop samples are bisected perpendicular to the drop/Al^sub 2^O^sub 3^ interface at the midplane of the contact circle to obtain samples that permit bond strength measurement ...

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