AbstractDie Defektstruktur von monoklinem ZrO2 wurde durch Messung der Ionen‐ und Elektronen‐Transportzahlen sowie der elektrischen Leitfähigkeit als Funktion des Sauerstoffdrucks und der Temperatur untersucht.

The low-temperature specific heat of cadmium in its normal state has been measured between 1.5 and about 4.2\ifmmode^\circ\else\textdegree\fi{}K and may be expressed in the form $C=\ensuremath{\gamma}T+\ensuremath{\alpha}{T}^{3}+\ensuremath{\beta}{T}^{5}$. Using as the electronic specific-heat coefficient, $\ensuremath{\gamma}$, the value of 0.6845\ifmmode\pm\else\textpm\fi{}0.0109 mJ ${\mathrm{deg}}^{\ensuremath{-}2}$ ${(\mathrm{mole})}^{\ensuremath{-}1}$ recently reported by Martin for the temperature range 0.4 to 1.5\ifmmode^\circ\else\textdegree\fi{}K, the other coefficients are: $\ensuremath{\alpha}=0.1837\ifmmode\pm\else\textpm\fi{}0.0070$ mJ ${\mathrm{deg}}^{\ensuremath{-}4}$ ${(\mathrm{mole})}^{\ensuremath{-}1}$ and $\ensuremath{\beta}=0.0098\ifmmode\pm\else\textpm\fi{}0.0010$ mJ ${\mathrm{deg}}^{\ensuremath{-}6}$ ${(\mathrm{mole})}^{\ensuremath{-}1}$. The calorimetric Debye temperature, ${{\ensuremath{\Theta}}_{0}}^{C}$, is 219.5\ifmmode\pm\else\textpm\fi{}2.7\ifmmode^\circ\else\textdegree\fi{}K which agrees satisfactorily with the elastic value, ${{\ensuremath{\Theta}}_{0}}^{E}$, of 213\ifmmode\pm\else\textpm\fi{}1\ifmmode^\circ\else\textdegree\fi{}K. In the light of this agreement, the apparent discrepancies between ${{\ensuremath{\Theta}}_{0}}^{C}$ and ${{\ensuremath{\Theta}}_{0}}^{E}$ for cadmium cited in earlier literature are probably not significant.