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首页> 外文期刊>Metallurgical and Materials Transactions >The Equilibrium Oxygen Pressure over the Cr-Y_2O_3-YCrO_3 Coexistence Measured with the Galvanic Cell Using Stabilized ZrO_2 Solid Electrolyte
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The Equilibrium Oxygen Pressure over the Cr-Y_2O_3-YCrO_3 Coexistence Measured with the Galvanic Cell Using Stabilized ZrO_2 Solid Electrolyte

机译：用稳定的ZrO_2固体电解质用原电池测量Cr-Y_2O_3-YCrO_3共存时的平衡氧压

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摘要

The equilibrium oxygen pressure over the Cr-Y_2O_3-YCrO_3 coexistence has been measured by the following cells: Cr, Y_2O_3, YCrO_3|ZrO_2|Cr, Cr_2O_3 [Ⅰ] Mn, MnO|ZrO_2 Cr, Y_2O_3, YCrO_3 [Ⅱ] Moreover, the partial electronic conduction parameter, P_e, has been determined simultaneously, as the oxygen partial pressure where the n-type electronic and ionic conductivities are equal in the stabilized ZrO_2. The equilibrium oxygen pressure, P_(O_2), over the Cr-Y_2O_3-YCrO_3 coexistence and P_e are expressed as log (P_(O_2)/atm) = 10.6 - 4.39 x 10~4 1/T ± 0.1 (1385 to 1470 K) log (P_e/atm) = 8.86 - 4.21 x 10~4 1/T ± 0.3 (1385 to 1470 K) From the equilibrium oxygen pressure and the standard Gibbs energy of formation of Y_2O_3, the standard Gibbs energy of formation of YCrO_3 is calculated as ΔG°_f/J mol~(-1) = -1.58 x 10~6 + 2.93 X 10~2 T ± 7 x 10~3 (1385 to 1470 K).
机译：通过以下单元测量了Cr-Y_2O_3-YCrO_3共存时的平衡氧气压力：Cr，Y_2O_3，YCrO_3 | ZrO_2 | Cr，Cr_2O_3 [Ⅰ] Mn，MnO | ZrO_2 Cr，Y_2O_3，YCrO_3 [Ⅱ]此外，同时确定了部分电子传导参数P_e，作为稳定的ZrO_2中n型电子和离子电导率相等的氧分压。 Cr-Y_2O_3-YCrO_3共存和P_e上的平衡氧压P_（O_2）表示为log（P_（O_2）/ atm）= 10.6-4.39 x 10〜4 1 / T±0.1（1385至1470 K ）log（P_e / atm）= 8.86-4.21 x 10〜4 1 / T±0.3（1385至1470 K）从平衡氧压和Y_2O_3的形成标准吉布斯能量来看，YCrO_3的形成标准吉布斯能量为计算为ΔG°_f / J mol〜（-1）= -1.58 x 10〜6 + 2.93 X 10〜2 T±7 x 10〜3（1385至1470 K）。

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