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Catalysts for long-life closed-cycle co2 lasers
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Schryer, David R. Hoyt, Ronald F. Wood, George M. Hess, Robert V. Paulin, Patricia A. Brown, Kenneth G. Batten, Carmen E. Sidney, Barry D. Burney, Lewis G. Miller, Irvin M. |
| Copyright Year | 1987 |
| Description | Long-life, closed-cycle operation of pulsed CO2 lasers requires catalytic CO-O2 recombination both to remove O2, which is formed by discharge-induced CO2 decomposition, and to regenerate CO2. Platinum metal on a tin (IV) oxide substrate (Pt/SnO2) has been found to be an effective catalyst for such recombination in the desired temperature range of 25 to 100 C. This paper presents a description of ongoing research at NASA-LaRC on Pt/SnO2 catalyzed CO-O2 recombination. Included are studies with rare-isotope gases since rare-isotope CO2 is desirable as a laser gas for enhanced atmospheric transmission. Results presented include: (1) achievement of 98% to 100% conversion of a stoichiometric mixture of CO and O2 to CO2 for 318 hours (greater than 1 x 10 to the 6th power seconds), continuous, at a catalyst temperature of 60 C, and (2) development of a technique verified in a 30-hour test, to prevent isotopic scrambling when CO-18 and O-18(2) are reacted in the presence of a common-isotope Pt/Sn O-16(2) catalyst. |
| File Size | 392630 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870011099 |
| Archival Resource Key | ark:/13960/t9t19wn8m |
| Language | English |
| Publisher Date | 1987-04-01 |
| Access Restriction | Open |
| Subject Keyword | Lasers And Masers Service Life Tea Lasers Catalysts Recombination Reactions Closed Cycles Oxygen Isotopes Pulsed Lasers Carbon Dioxide Lasers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
