Production of ceramic powders from laser-driven reactions

E. Borsella; S. Botti; M. C. Cesile; Stefano Martelli; A. Nesterenko; Rossella Giorgi; S. Turtu; Rodica Alexandrescu; Ion G. Morjan

doi:10.1117/12.203525

8 March 1995 Production of ceramic powders from laser-driven reactions

E. Borsella, S. Botti, M. C. Cesile, Stefano Martelli, A. Nesterenko, Rossella Giorgi, S. Turtu, Rodica Alexandrescu, Ion G. Morjan

Author Affiliations +

Proceedings Volume 2461, ROMOPTO '94: Fourth Conference in Optics; (1995) https://doi.org/10.1117/12.203525
Event: ROMOPTO '94: 4th Conference on Optics, 1994, Bucharest, Romania

Abstract

Laser photo induced reactions from gaseous precursors have been applied to the synthesis of nanosized silicon carbonitrides and (gamma) -alumina based powders. Silicon carbonitrides with different structures and chemical compositions have been produced by changing the reactant gases or their relative concentrations. The structural and chemical evolution have been studied by thermal treatments in Ar and N₂ atmosphere. The results confirm the applicability of this powder for industrial applications. Concerning the (gamma) -alumina powder, changes in the reactants concentration ratio have shown to influence both the process yield and the composition of the outcoming powders. Nitrogen or carbon rich (gamma) - alumina powders (Al₃O₃N, Al₂OC) have been synthesized. Some recent and encouraging results on the thermal properties of laser produced silicon carbide are also presented.

Citation Download Citation

E. Borsella, S. Botti, M. C. Cesile, Stefano Martelli, A. Nesterenko, Rossella Giorgi, S. Turtu, Rodica Alexandrescu, and Ion G. Morjan "Production of ceramic powders from laser-driven reactions", Proc. SPIE 2461, ROMOPTO '94: Fourth Conference in Optics, (8 March 1995); https://doi.org/10.1117/12.203525

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