• kinetics, stability, and thermal contact resistance of nickel–ca3co4o9 interfaces formed by spark plasma sintering

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 914
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     incorporating oxide thermoelectric (te) materials into te power generation modules necessitates study of the interfaces between the oxide te elements and the interconnect materials used to transfer current between them. in this study, interfaces between pure nickel and undoped calcium cobaltate (ca3co4o9) have been formed directly by spark plasma sintering (sps). an intermediate nio phase is formed during the sps processes, which grows during post-heating with co entering from the cobaltate side to form a graded ni1−x co x o interfacial layer. the electrical and thermal transport across these interfaces, as well as the long-term chemical stability of the intermediate layers, have been studied and are discussed.

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