Oxygen distribution in AlN and Si3N4 powders as revealed by chemical and spectroscopy techniques
Source abstract
Abstract
Abstract The oxygen content and the surface composition of pure AlN and Si 3 N 4 powders, synthesized by SHS reactions and commercial routes, have been studied using X-ray photoelectron spectroscopy (XPS) and hot gas extraction techniques. Surface stoichiometry is identified and discussed for each powder. The AlN and Si 3 N 4 powders synthesized by SHS technology were subjected to a sputtering process with rare gas bombardment (Ar + ) in order to progressively remove the uppermost layers. A gradient in the oxygen distribution between the particle surface and the interior was measured. Differences in the oxygen distribution for the AlN and Si 3 N 4 powders depending on the route of synthesis have been observed.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Semiconductor materials and devices · Metal and Thin Film Mechanics
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References (24)
Show source-provided references
1. Thermally conductive ceramics in electronic packaging10.1115/1.3226533 ↗
2. Thermal conductivity of commercial AlN
3. Thermodinamic and kinetics effects of oxygen removal on the thermal conductivity of AlN10.1111/j.1151-2916.1989.tb06027.x ↗
4. Directly bonded copper metallization of AlN substrates for powder hybrids10.1557/PROC-40-399 ↗
5. Influence of granule character on the mechanical properties of sintered silicon nitride10.1111/j.1151-2916.1996.tb08515.x ↗
6. A.E. Pasto, S. Nathansohn S., Development of improved processing methods for silicon nitride ceramics, ASME Paper 91-GT-316, presented at the international Gas Turbine and Aeroengine Congress and Exposition, Orlando, FL, 3–6 June 1991.
7. Crack-growth resistance of in situ-toughened silicon nitride10.1111/j.1151-2916.1994.tb07265.x ↗
8. L.Y. Russell, Know Oh-Hun, Silicon nitride for heat engine and bearing components, in: I. Birkby (Ed.), Ceramic Technology International. Sterling Publications Ltd, UK, 1996, pp. 21–24.
9. Stress enhanced oxidation of silicon nitride ceramics10.1111/j.1151-2916.1993.tb06614.x ↗
10. M.J. Hoffmann, High-temperature properties of Si3N4 ceramics, MRS Bulletin, February 1995.10.1557/S0883769400049186 ↗
11. Effect of powder surface modifications on the properties of silicon nitride ceramics10.1111/j.1151-2916.1993.tb07764.x ↗
12. K.A. Golubjatnikov, G.C. Stangle, R.M. Spriggs, The economics of advanced self-propagating high-temperature synthesis materials Fabrication, Am. Ceram. Soc. Bull. 72 (12) (December 1993).
13. History and recent developments in SHS: review paper10.1016/0272-8842(95)96211-7 ↗
14. J. Bermudo, M.I. Osendi, Study of AlN and Si3N4 powders synthesized by SHS reactions, Ceram. Int. 25 (7) (1999) 607–612.10.1016/S0272-8842(98)00072-8 ↗
15. Muilenberg · 1979
16. J. Bermudo, Estudio de materiales de nitruro de silicio y nitruro de aluminio procesados mediante polvos obtenidos por reacciones de autocombustion, Universidad de Alcalá de Henares, Madrid, Spain, 1996.
17. D.P. Woodruff, T.A. Delchar, Modern techniques of surface science, Cambridge University Press 1986.
18. Thermal conduction mechanism of aluminun nitride ceramics10.1007/BF00540680 ↗
19. Sintering chemical reactions to increase thermal conductivity of aluminun nitride10.1007/BF00612411 ↗
20. Determination of the oxygen dissolved in the AlN lattice by hot gas extraction from AlN ceramics10.1016/0955-2219(91)90087-G ↗
21. Proposal of a composition model for a commercial AlN Powders10.1016/0955-2219(91)90100-E ↗
22. Characterization of surface-oxidized phase in silicon nitride and silicon oxinitride powders by X-ray photoelectron spectroscopy10.1111/j.1151-2916.1995.tb08613.x ↗
23. Oxygen distribution in silicon nitride powders10.1007/BF01161483 ↗
24. Surface oxidation of silicon nitride films10.1149/1.2132877 ↗