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Nano-inclusions associated with ß-SiAlON grains in ¿-ß SiAlON materials

Journal Article


Abstract

  • This paper details supplementary characteristics of the nano-scale inclusions recently discovered in β-sialon grains in a Sm α′-β′ composite material given a post-preparative heat-treatment at 1450°C. In addition to heat-treated materials, the features were also observed in the 'as-sintered' billet. While many inclusions were distributed randomly, some were organized into planar arrays. The nature of many features concur with those of the grain boundary glass in the 'as-sintered' material, thereby hinting that these inclusions are composed of entrapped grain boundary liquid. Furthermore, it is suggested that the inclusions may result from the α′ → β′ transformation, insofar as they may possess some of the species that constitute the difference in composition between the two phases. © 1997 Trans Tech Publications.

Publication Date

  • 1997

Citation

  • Swenser, S. P., Pereloma, E. V., & Cheng, Y. B. (1997). Nano-inclusions associated with ß-SiAlON grains in ¿-ß SiAlON materials. Key Engineering Materials, (136 PART 2), 1014-1017.

Scopus Eid

  • 2-s2.0-0030710033

Web Of Science Accession Number

Start Page

  • 1014

End Page

  • 1017

Issue

  • 136 PART 2

Abstract

  • This paper details supplementary characteristics of the nano-scale inclusions recently discovered in β-sialon grains in a Sm α′-β′ composite material given a post-preparative heat-treatment at 1450°C. In addition to heat-treated materials, the features were also observed in the 'as-sintered' billet. While many inclusions were distributed randomly, some were organized into planar arrays. The nature of many features concur with those of the grain boundary glass in the 'as-sintered' material, thereby hinting that these inclusions are composed of entrapped grain boundary liquid. Furthermore, it is suggested that the inclusions may result from the α′ → β′ transformation, insofar as they may possess some of the species that constitute the difference in composition between the two phases. © 1997 Trans Tech Publications.

Publication Date

  • 1997

Citation

  • Swenser, S. P., Pereloma, E. V., & Cheng, Y. B. (1997). Nano-inclusions associated with ß-SiAlON grains in ¿-ß SiAlON materials. Key Engineering Materials, (136 PART 2), 1014-1017.

Scopus Eid

  • 2-s2.0-0030710033

Web Of Science Accession Number

Start Page

  • 1014

End Page

  • 1017

Issue

  • 136 PART 2