The surface free energy of thin foils can be determined near the Tammann temperature of the metal by the zero creep/laser interferometer. The use of the laser interferometer allows smaller sample strains to be measured with a higher level of confidence. The surface free energy of Al under a vacuum was determined to be 1057 dynes/cm at 743 K and 968 dynes/cm at 813 K. The surface free energy of Sn was determined to be 452 dynes/cm at 478 K in air. The extension of this technique to the evaluation of pure transition metal foils of Fe, Ni, and Co is also discussed.
|Number of pages||7|
|Journal||American Chemical Society, Division of Petroleum Chemistry, Preprints|
|State||Published - Aug 1989|
|Event||Preprints of the Division of Petroleum Chemistry, Inc., American Chemical Society: General Papers (Poster Session) - Miami, FL, USA|
Duration: Sep 10 1989 → Sep 15 1989