bi-directional sub-surface shear stresses. Figure 2.2 indies the magnitude of these stresses. PITTING Pitting is a form of surface fatigue which may occur soon after operation begins and may be of three types: 1 - initial (corrective) 2 - destructive 3 - normal INITIAL PITTING is caused by local areas of high stress due to
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Get PriceInfluence of Reaction-Sintering and Calcination Conditions on Thermoelectric Properties of Sm-doped Calcium Manganate CaMnO 3. S. Bresch 1 B. Mieller 1 F. Delorme 2 C. Chen 2 M. Bektas 3 R. Moos 3 T. Rabe 1. 1 Advanced Technical Ceramics Division Bundesanstalt für Materialforschung und -prüfung (BAM) Unter den Eichen 44 – 46 D-12203 Berlin Germany 2
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Get PriceThe electron and phonon transports in CaMnO 3 and in one of its Bi-doped counterparts namely Bi 0.03 Ca 0.97 MnO 3 are investigated using the thermoelectric transport measurements and first-principles calculations.We find that antiferromagnetic insulator CaMnO 3 breaks the Wiedemann–Franz law with the Lorenz number reaching four times that of ordinary metals at room temperature.
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Get PriceIn this study Ca0.9Yb0.1MnO3 + x wt.% Ag (with x = 0 1 3 5 and 10) thermoelectric materials were prepared via the classical ceramic method. In spite of the very high sintering temperature (1300 °C) no significant Ag losses were observed following this process. Moreover Ag addition enhanced ion mobility during sintering due to the formation of a liquid phase.
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