Abstract
Solid-state reactions between bulk samples of copper oxide and alumina have been studied using scanning electron microscopy and electron microprobe analysis. Both CUA12O4 and CuA1O2 were found to form during reactions in air at 1100 °C between CuO powder and single-crystal alumina substrates. The relative position of the CUA12O4 and CUA1O2 layers was observed to depend on the crystallographic orientation of the surface of the alumina substrate: CUA12O4 formed in contact with (0001) alumina substrates while CuA1O2 formed when the alumina substrate surface was (1120). Faceted Cu-aluminate/alumina phase boundaries were observed to develop when single-crystal alumina rods were reacted with CuO, although the interfaces invariably tended to be wavy. © 1991, Materials Research Society. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 1958-1963 |
| Number of pages | 6 |
| Journal | Journal of Materials Research |
| Volume | 6 |
| Issue number | 9 |
| DOIs | |
| State | Published - Jan 1 1991 |
| Externally published | Yes |
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