A waste minimization program to develop a non-oxidative stripper system based on metallic getters is being conducted. Initial development is being performed using a Zr-Fe-Sn intermetallic alloy getter procured as Stl98 from SAES Gefters/USA., Inc. This memorandum describes characterizations of physical and compositional properties of SAES Stl98. SAES Stl98 getter was supplied as very durable, cylindrical pellets made by compaction of. granules of Zr-Fe-Sn alloy up to 150 (mu)m in size. Pellet density was 5.2 g/mL corresponding to 24.8% open porosity and very little closed porosity. Bulk composition of Stl98 was 73.6 weight percent (w/o) Zr, 23.3 w/o Fe and 1.2 w/o Sn. Stl98 consists of Zr(sub 2)Fe primary phase along with four secondary phases (ZrFe(sub 2), Zr(sub 5)FeSn, (alpha)-zirconium, and (eta)-Zr(sub 4)Fe(sub 2)O(sub 0.6)). Hydriding characteristics of Stl98 are expected to differ slightly from those of Zr(sub 2)Fe because (alpha)-zirconium and, possibly, Zr(sub 5)FeSn also react with hydrogen.


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    Title :

    Characterization of SAES St198 zirconium-iron-tin alloy


    Contributors:

    Publication date :

    1992


    Size :

    15 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English