Mathews, Tom ; Jacob, K. T. (1990) Equilibrium oxygen potential for the decomposition of YBa2Cu4O8 Applied Physics Letters, 57 (5). pp. 511-513. ISSN 0003-6951
Full text not available from this repository.
Official URL: http://link.aip.org/link/?APPLAB/57/511/1
Related URL: http://dx.doi.org/10.1063/1.103635
Abstract
On lowering the chemical potential of diatomic oxygen, the compound YBa2Cu4O8 was found to decompose into a mixture of YBa2Cu3O6+x and CuO. The equilibrium oxygen potential corresponding to this decomposition has been measured from 870 to 1150 K using a solid-state cell incorporating yttria-stabilized zirconia as the solid electrolyte and pure oxygen at a pressure of 1.01 × 105 Pa as the reference electrode: Pt,O'2||YBa2Cu4O8+YBa2Cu3O6+x+CuO||(Y2O3) ZrO2||O2(1.01×105Pa),Pt. The low oxygen potential boundary for the stability of YBa2Cu4O8 can be represented by ΔμO2=-238 900+207.7 T(±800) J mol-1. At the standard pressure of oxygen (1.01 × 105 Pa) the decomposition occurs at 1150 K.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| ID Code: | 12949 |
| Deposited On: | 11 Nov 2010 08:21 |
| Last Modified: | 03 Jun 2011 09:47 |
Repository Staff Only: item control page
