REACTION OF MOLTEN METALS WITH REFRACTORY CERAMICS Sandia National Laboratories (Albuquerque, NM), is studying the reaction of molten metals with ceramics for a number of potential applications. One such application is improvement of refractory ceramics used in metal processing through developing a better understanding fundamental mechanisms of reaction and degradation. Current Sandia research in this area includes study of reactions between Al and Al alloys and oxide ceramics such as alumina and mullite. Experimental studies use a controlled atmosphere high temperature furnace equipped with a mass spectrometer that can analyze the reaction atmosphere and with viewing windows that allow the contact angle of the molten metal on the ceramic to be continuously monitored. Reaction mechanisms are inferred from analysis of cross sections of the metal-ceramic interface using various electron analytical methods. Equilibrium phases are calculated using commercial Gibbs energy minimization software. Sandia is interested in partnering with industry to apply itsexpertise to ceramic refractories used in the metals processing industries. Industry partners must be willing to commit to a significant effort in supplying well-characterized specimens, in discussions of test results, and in providing particular analyses of reacted specimens. No Sandia funds will be provided to the industry partner(s) for their part of the collaboration. Companies interested in partnering with Sandia should be willing to join in a collaborative project via a Cooperative Research and Development Agreement (CRADA). For further information, please respond by mail or fax to Sheila Pounds by June 29, 1999 at: Sandia National Laboratories, MS 1380, PO Box 5800, Albuquerque, New Mexico 87185-1380. Please indicate the date and title of this CBD notice. E-MAIL: Sheila L. Pounds, slpound@sandia.gov. Posted 06/14/99 (W-SN342502).

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