| 1. | High-temperature superconductors, made of copper oxides, tend to be brittle, however.
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| 2. | Copper thermite, using copper oxide, is used for creating electric joints:
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| 3. | In 1885 he started the Imperial Oil Company in copper oxides.
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| 4. | Solid-state technology was in its infancy, represented by copper oxide and selenium rectifiers.
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| 5. | Ultramarine withstands heat, but azurite turns to black copper oxide.
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| 6. | Copper oxide from copper pipes may cause calthemites to be coloured green or blue.
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| 7. | The thin copper oxide is a solid and essentially protects the unoxidized copper underneath.
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| 8. | The bulk of the copper oxide is turned back into the form of sulfide.
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| 9. | For instance, a copper oxide coating on the keys would suggest the presence of copper.
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| 10. | YBCO tape is often referred to as rare-earth barium copper oxide ( REBCO ) tape.
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