Oxidation of Rare Earth Silicon Oxynitride J-Phases

Junichi Takahashi; Takayuki Suehiro

doi:10.4028/www.scientific.net/KEM.403.57

Paper Titles

Atomic Resolution and In Situ Characterization of Structural Ceramics
p.43

Non-Oxide Ceramic Nanocomposites with Multifunctionality
p.45

Electrical Resistivity Control of Hot-Pressed Aluminum Nitride Ceramics
p.49

Fracture Resistance and Wear Properties of Silicon Nitride Ceramics
p.53

Oxidation of Rare Earth Silicon Oxynitride J-Phases
p.57

Effect of Second Phase After-Heat Treatment on the Thermal Conductivity of AlN Ceramics
p.61

Thermal Conductivity Measurement of the AlN Ceramics at the Grain Scale Using Thermoreflectance Technique
p.65

Viscosity Measurement of Molten RE-Mg-Si-O-N (RE=Y, Gd, Nd and La) Glasses
p.69

First Principles Calculations of Advanced Nitrides, Oxides and Alloys
p.73

HomeKey Engineering MaterialsKey Engineering Materials Vol. 403Oxidation of Rare Earth Silicon Oxynitride...

Oxidation of Rare Earth Silicon Oxynitride J-Phases

Abstract:

Oxidation behavior of R4Si2O7N2 (J-phase; R = Y and rare-earth element) has been investigated by thermometric measurements in air. All R4Si2O7N2, of which the powder samples are prepared by gas-pressured sintering method under 1 MPa of N2 gas, are oxidized to R2SiO5 with an exothermic reaction in air under an ambient pressure. The oxidation temperature to produce the final oxide increases from c.a. 930 to 1060 °C with decreasing the ionic radii of the rare earth elements.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Key Engineering Materials (Volume 403)

Pages:

57-59

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.403.57

Citation:

Cite this paper

Online since:

December 2008

Authors:

Junichi Takahashi, Takayuki Suehiro

Keywords:

J-Phase, Oxidation, Silicon Oxynitride

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Y. Yamamoto, N. Hirosaki, G. Shouqi, T. Nishimura and M. Mitomo: Annual Meeting of The Ceramic Society of Japan, 2001, p.173.

Google Scholar

[2] S. Guo, N. Hirosaki, Y. Yamamoto, T. Nishimura and M. Mitomo: Scripta Mater: 45 (2001), p.867.

Google Scholar

[3] V.A. Ijevskii, U. Kolitsch, H.J. Seifert, I. Wiedmann and F. Aldinger: J. Euro. Ceram. Soc., 18 (1998), p.543.

Google Scholar

[4] J.W.H. van Krevel, H.T. Hintzen, R. Metselaar, L. Le Gendre and R. Marchand: Sol. Stat. Sci., 3 (2001) p.49.

Google Scholar

[5] J. Takahashi, H. Yamane, Y. Yamamoto, N. Hirosaki, M. Mitomo and M. Shimada: J. Eur. Ceram. Soc., 25 (2005) p.793.

Google Scholar

[6] J. Takahashi et al., to be published.

Google Scholar

[7] C. Schrimph and G.H. Frischat: J. Non-Cryst. Solids, 56 (1983) p.153.

Google Scholar

[8] J. Takahashi, H. Yamane, M. Shimada, Y. Yamamoto, N. Hirosaki, M. Mitomo, K. Oikawa, S. Torii and T. Kamiyama: J. Am. Ceram. Soc., 85 (2002) p. (2072).

Google Scholar

[9] J. Takahashi, H. Yamane, N. Hirosaki, Y. Yamamoto, T. Suehiro, T. Kamiyama and M. Shimada: Chem. Mater., 15 (2003) p.1099.

Google Scholar