TITLE

Nitrification of zirconium by cw CO2 laser irradiation in ambient atmosphere

AUTHOR(S)
Ursu, I.; Mihailescu, I. N.; Nanu, L.; Prokhorov, A. M.; Konov, V. I.; Ralchenko, V. G.
PUB. DATE
January 1985
SOURCE
Applied Physics Letters;1/15/1985, Vol. 46 Issue 2, p110
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The preferential nitrification of zirconium can be obtained as a result of cw CO2 laser heating in air in some specific conditions, followed by rapid cooling in a jet of high purity argon.
ACCESSION #
9817030

 

Related Articles

  • Growth and dissolution of oxide films during laser-assisted combustion of Ti and Zr. Ursu, I.; Mihailescu, I. N.; Nistor, L. C.; Teodorescu, V. S.; Prokhorov, A. M.; Konov, V. I.; Ralchenko, V. G. // Applied Physics Letters;3/9/1987, Vol. 50 Issue 10, p563 

    cw CO2 laser-assisted combustion of Ti and Zr in Xe:O2 and N2:O2 gaseous mixtures was studied. Total dissolution of oxide films and/or formation of oxynitride layers on both metals were evidenced and the growth of giant oxide nuclei of up to 100×10×10 μm3 was observed upon burning Zr...

  • Production of nanomaterials by vaporizing ceramic targets irradiated by a moderate-power continuous-wave CO2 laser. Snytnikov, V.; Snytnikov, Vl.; Dubov, D.; Zaikovskii, V.; Ivanova, A.; Stoyanovskii, V.; Parmon, V. // Journal of Applied Mechanics & Technical Physics;Mar2007, Vol. 48 Issue 2, p292 

    The efficiency of utilization of CO 2 laser energy for vaporization of Al 2 O 3 ceramics is evaluated using a mathematical model for the interaction of laser radiation with materials. It is shown that the calculated efficiency of radiation-energy utilization is not higher than 15% at a radiation...

  • Effect of surface treatment with CO2 laser on primary bond strength between camposite resin and zirconia. Atefat, Mohammad; Beheshti, Maryam; Khamverdi, Zahra; Kasraei, Shahin // Journal of Isfahan Dental School;2012, Vol. 8 Issue 3, p213 

    Introduction: Since it is not possible to form an adequate micromechanical bond between resin cement and zirconia ceramics using common surface treatment techniques, laser pretreatment has been suggested for zirconia ceramic surfaces. The aim of this study was to evaluate the effect of CO2 laser...

  • Effect of Surface Treatment with Carbon Dioxide (CO2) Laser on Bond Strength between Cement Resin and Zirconia. Kasraei, Shahin; Atefat, Mohammad; Beheshti, Maryam; Safavi, Nassimeh; Mojtahedi, Maryam; Rezaei-Soufi, Loghman // Journal of Lasers in Medical Sciences;Summer2014, Vol. 5 Issue 3, p115 

    Introduction: Since it is not possible to form an adequate micromechanical bond between resin cement and zirconia ceramics using common surface treatment techniques, laser pretreatment has been suggested for zirconia ceramic surfaces. The aim of this study was to evaluate the effect of Carbon...

  • New bar cathode system for cw CO2 transversely excited lasers. Kasamatsu, M.; Shiratori, S. // Applied Physics Letters;2/24/1986, Vol. 48 Issue 8, p505 

    A new bar cathode system that is simple and easy to construct was developed. Its characteristics were investigated and compared with a conventional multipin cathode system. The result demonstrated that transversely excited CO2 lasers employing both cathode systems have similar characteristics...

  • Longitudinal mode selection in hybrid CO2 laser for subthreshold operation of cw discharge section. Sinha, Sucharita; Gupta, Pradeep K. // Applied Physics Letters;11/17/1986, Vol. 49 Issue 20, p1331 

    The relative mode intensities in the hybrid CO2 laser output are investigated for subthreshold operation of cw gain section. The rate equation model developed for the purpose provides estimates in very satisfactory agreement with experimental results. The model also predicts the existence of an...

  • Oxide conductive coated cathodes for a sealed-off CO2 laser. Hsieh, Tai-Chiung; Lan, Yuan-Liang // Applied Physics Letters;10/19/1987, Vol. 51 Issue 16, p1227 

    Cold cathodes coated with oxide conductive materials, such as indium tin oxide and tin oxide, were applied to dc gas discharges of a sealed-off CO2 laser. Laser power enhancement and stable gas discharge, two areas of laser performance, were affected, in contrast to the uncoated metallic...

  • Transverse mode selection in a longitudinal continuous wave CO2 laser with a nominal power of 125 W Al-Hawat, Sharif; Al-Sadat, Walid // Review of Scientific Instruments;Apr98, Vol. 69 Issue 4, p1914 

    Investigates the transverse electro-magnetic mode selection in a longitudinal continuous wave carbon dioxide (CO[sub 2]) laser. Factors attributed to output power reduction and relative intensity distribution; Application of a changeable cylindrical aperture inside the cavity; Characteristics...

  • High-efficiency DF-CO2 pulsed chemical laser. Dreiling, T. D.; McGann, R. L. // Applied Physics Letters;4/9/1990, Vol. 56 Issue 15, p1397 

    The operation of a very efficient, high-energy DF-CO2 pulse chemical transfer laser is described. Laser specific energies as high as 21 J/l were obtained with a wall plug laser electrical efficiency of 130%. Higher laser energy can be obtained with lower efficiencies, e.g., 29 J/l at 80%. The...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics