Paper Titles
Adsorption of Tiron onto Alumina
p.399
Comparison of Hydroxyapatite Sorption Properties towards Cadmium, Lead, Zinc and Strontium Ions
p.405
Dilatometer Investigations of Reactive Sintering of Zinc Titanate Ceramics
p.411
Application of the Master Sintering Curve Theory to Non-Isothermal Sintering of BaTiO3 Ceramics
p.417
Hot Pressing of Y2O3 Doped Si3N4 Ceramics
p.423
Influence of Additive Type on Densification and Phase Transformation of Seeded Si3N4
p.429
Investigation on the Static and Fatigue Failure of Bi-Directional Composite Pipes
p.435
SiC/SiC Composites Prepared with a BN Interphase Processed by LP-CVD from Molecular Precursor
p.443
Synthesis and Electrophoretic Deposition of an Yttrium Silicate Coating System for Oxidation Protection of C/C-Si-SiC Composites
p.451

Hot Pressing of Y2O3 Doped Si3N4 Ceramics

Article Preview

Abstract:

The effect of seeding on the microstructure and mechanical properties of hot-pressed silicon nitride was investigated by introducing large, elongated b-Si3N4 particles into an α-Si3N4 matrix. Densification and fracture toughness were followed in the presence of Y2O3 as sintering aid. The concentration of seeds varied from 0 to 5 wt%. The maximum fracture toughness was 8.0 MPam1/2 for a material with 3 wt% seeds, hot pressed at 1750oC, for 4h.

You might also be interested in these eBooks
Current Research in Advanced Materials and Processes View Preview

Info:

Periodical:

Materials Science Forum (Volume 494)

Pages:

423-428

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.494.423

Citation:

Cite this paper

Online since:

September 2005

Authors:

D. Bučevac

Keywords:

Hot-Pressing, Seed

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] K. Hirao, T. Nagaoka, M. Brito and S. Kanzaki, J. Am. Ceram. Soc., 77 (1997), p.1857.

Google Scholar

[2] S. Boskovic and E. Kostic, Sintering and some Properties of Si3N4 Based Ceramics, in: S. Hampshire (Ed. ), Non-oxide Technical and Engineering Ceramics, Elsevier Applied Science, London and New York, p.165 (1986).

DOI: 10.1007/978-94-009-3423-8_12

Google Scholar

[3] P. Saigalik, J. Dusza and M. J. Hoffmann, Cer. Acta, 6 (1994), p.35.

Google Scholar

[4] A. De Pablos, M. Osendi, P. Miranzo, Ceram. Int., 29 (2003), p.757.

Google Scholar

[5] F. A. Costa Oliveira, P. Tambuyser, D. J. Baxter, Ceram. Int., 26 (2000), p.571.

Google Scholar

[6] D. Bucevac, S. Boskovic, M. Vlajic and V. Krstic, J. Mater. Sci. Technol., 20 (2004), p.241.

Google Scholar

[7] K. Hirao, H. Imamura, K. Watari, M. Brito, M. Toriyama, S. Kanzaki, Key Eng. Mater., Vols. 161-163 (1999), p.469.

DOI: 10.4028/www.scientific.net/kem.161-163.469

Google Scholar

[8] G. Anstis, P. Chantikul, B. Lawn and D. Marshall, J. Am. Ceram. Soc., 64 (1981), p.533.

Google Scholar

[9] H. Suematsu, M. Mitomo, T. Mitchell, J. Petrovic, O. Fukunaga and N. Ohashi, J. Am. Ceram. Soc., 80 (1997), p.615.

Google Scholar

[10] O. Abe, J. Mat. Sci., 25 (1990), p.4018.

Google Scholar

[11] C. M. Wang, X. Pan, M. J. Hoffman, R. M. Cannon, M. Ruhle, J. Am. Ceram. Soc., 79 (1996), p.788.

Google Scholar

[12] L. K. L. Falk, G. L. Dunlop, J. Mat. Sci., 22 (1987), p.4369.

Google Scholar