Improved process for making mechanically strong, dense, phase-pure potassium beta''-alumina solid electrolyte (K-BASE) results in material superior to all previous K-BASE preparations and similar to commercial Na-BASE in strength, phase purity and high-temperature ionic conductivity. Potassium-based alkali-metal thermal-to-electric conversion (AMTEC) cells expected to operate efficiently at lower heat-input temperatures and lower rejection temperatures than sodium-based AMTEC cells, making them appropriate for somewhat different applications.


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    Title :

    Preparation Of Strong, Dense Potassium Beta''-Alumina Ceramic



    Published in:

    Publication date :

    1995-06-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :



    Ionic Conductivity of Potassium Beta -Alumina Ceramic

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    Improved Synthesis Of Potassium Beta' '-Alumina

    Williams, Roger M. / Jeffries-Nakamura, Barbara / Ryan, Margaret A. et al. | NTRS | 1996


    Potassium beta-double-prime-alumina/ potassium/ molybdenum electrochemical cells

    Williams, R. / Kisor, A. / Ryan, M. et al. | AIAA | 1994