The Dissociation Pressure of Some Lithium Copper Oxides and Lithium Peroxide

✍ Scribed by Glen A. Slack; Stanley Mroczkowski

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 286 KB
• Volume: 107
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1993.1373

✦ Synopsis

The oxygen dissociation pressures of (\mathrm{Li}{3} \mathrm{Cu}{2} \mathrm{O}{4}, \mathrm{Li}{3} \mathrm{CuO}{3}), and (\mathrm{Li}{2} \mathrm{O}{2}) have been measured in the temperature range 679 to (918 \mathrm{~K}) where they range from 1.4 to (77 \mathrm{~atm}). The results have been fitted to an equation of the type (\log (P)=A-(B / T)). The equilibrium dissociation is approached from the lowpressure side in order to obtain data in a finite length of time. Formation pressures are two to five times the dissociation pressure because of a substantial volume increase during oxygen uptake. A preliminary experiment on the flux growth of (\mathrm{Li}{3} \mathrm{Cu}{2} \mathrm{O}{4}) crystals is described. 1993 Acadenic Press, Inc.