Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-29T09:48:17.100Z Has data issue: false hasContentIssue false
  • English
  • Français

Mass Spectrometric Probing of Laser-Induced Materials Vapor Transport: Graphite and Superconducting YBa2Cu3Ox

Published online by Cambridge University Press:  25 February 2011

David. W. Bonnell ,
P. K. Schenck  and
J. W. Hastie
David. W. Bonnell
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20899
P. K. Schenck
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20899
J. W. Hastie
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20899
Get access

Abstract

A very high pressure-sampling mass spectrometer has been used to identify the vapor transport species and determine the thermochemistry and kinetics of laser-induced plumes produced from graphite and superconducting composition YBa2Cu3Ox targets (x = 6.5 to 7). An electron impact ion source was used for the ionization and detection of neutral plume species. The plumes initially contain -1 atm (1 atm = 101.325 kPa) of neutral and charged atomic and molecular species in a vacuum of <10−7 atm. Time resolved mass spectra were obtained with graphite targets for the neutral plume species Cn (n = 1-9) for varying laser fluence, laser-surface interaction geometry, vapor plume-sampling geometry, and target surface morphology. Relatively low abundance charged species C1+, C2+, C3+, and impurities Na+ and K+ were also observed in the laser-induced plume.

Mass spectra obtained with superconducting YBa2Cu3Ox targets showed a variety of species in the laser-induced plumes including both neutral and ionic Y, Ba, and Cu. In addition, molecular species such as O2, BaO, CuO+, YO and bimetallics (BaCu, YCu) were observed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 129: Symposium B – Laser and Particle-Beam Modification of Chemical Processes on Surfaces , 1988 , 353
Copyright
Copyright © Materials Research Society 1989

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Hass, G. and Ramesey, J.B., Appl Opt. 8, 1115 (1969).CrossRefGoogle Scholar
2. Lincoln, K.A. and Covington, M.A., Intl. J. Mass Spect. and Ion Phys. 16, 191 (1975).Google Scholar
3. Olstead, R.A., and Olander, D.R., J. Appl. Phys. 46, 1499 (1975).Google Scholar
4. Covington, M.A., Liu, G.N., and Lincoln, K.A., AIAA J. 15, 1174 (1977).Google Scholar
5. Lundell, J.H, and Dickey, R.R., AIAA 16th Aerospace Sciences Meeting, Huntsville, AL (1978) p. 193–209.Google Scholar
6. Ohse, R.W., Babelot, J.F., Cercignani, C., Kinsman, P.R., Long, K.A., Magill, J., and Scotti, A., in Proc. 10th Materials Symposium on Characterization of High Temperature Vapors and Gases, ed Hastie, J.W., (NBS SP 561/1 U.S. Gov. Printing Off., Washington, DC, 1979), p 83.Google Scholar
7. Baker, R.L., Covington, M.A., and Rosenblatt, G.M., “The Determination of Carbon Thermochemical Properties by Laser Vaporization,” in High Temperature Materials II, ed Munir, Z.A. and Cubicciotti, D. (Electrochem. Soc., Pennington, NJ, 1983) p. 143.Google Scholar
8. Dreyfus, R.W., Kelley, R., and Walkup, R.E., Appl. Phys. Lett. 49(21), 1478 (1986).Google Scholar
9. Hastie, J.W., Bonnell, D.W., and Schenck, P.K., “Laser-induced Vaporization Mass Spectrometry of Refractory Materials: Part I. Apparatus and the BN system,” High Temp. Sci. 25, 117 (1988).Google Scholar
10. Hastie, J.W., Bonnell, D.W., and Schenck, P.K., “Thermochemistry of Materials by Laser Vaporization Mass Spectrometry, Part II Graphite,” High Temp. High Press., 20, 73 (1988).Google Scholar
11. Lawton, J. and Weinberg, F., Electrical Aspects of Combustion, Chapter 6, (Oxford University Press, 1969).Google Scholar
12. Moorjani, K., Bohandy, J., Adrian, F. J., Kim, B. F., Schull, R. D., Chiang, C. K., Swartzendruber, L. J., and Bennett, L. H., Phys. Rev. B, 36, 4036 (1987).Google Scholar