Effect of Surface-Modified Si-Al-C® Fibre Addition on the Mechanical Properties of Silicon Carbide Composite

H. Moriyasu; J. Kita; H. Suemasu; Ian J. Davies; S. Koda; K. Itatani

doi:10.4028/www.scientific.net/AST.71.127

Paper Titles

Thermally Controlled Crystallization of Electrospun TiO₂ Nanofibers
p.80

Si-C-O Fibres in Gas Reactive Atmospheres
p.86

Design and Preparation of Laminated Composites
p.92

Development and Characterization of Transparent Glass Matrix Composites
p.102

Modelling Infiltration of Fibre Preforms From X-Ray Tomography Data
p.108

SA-Tyrannohex-Based Composite for High Temperature Applications
p.118

Effect of Surface-Modified Si-Al-C^® Fibre Addition on the Mechanical Properties of Silicon Carbide Composite
p.127

Application of Fiber Produced by Plasma Spray Method in Cementitious Complex Binder
p.133

Irradiation of a Polypropilene-Glass Fiber Composite
p.138

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 71Effect of Surface-Modified Si-Al-C® Fibre Addition...

Effect of Surface-Modified Si-Al-C^® Fibre Addition on the Mechanical Properties of Silicon Carbide Composite

Abstract:

The effect of surface modified Si-Al-C® fibre with carbon interface (SA/C fibre) addition on the densification of silicon carbide (SiC) composite was examined. An acid treatment (H2SO4 and HNO3) was carried out at 50°C for 3 h in order to add COO- group to the surface of SA/C fibre and to enhance the dispersibility of SA/C fibre in the SiC powder due to the mixing operation in the polar solvent. Commercially available ultrafine SiC powder (specific surface area: 47.5 m2∙g-1) was mixed with acid-treated SA/C fibre and sintering aid (4.8 mass% Al4C3 and 1.2 mass% B4C) in the presence of acetone. The relative density of the SiC composite with non-acid-treated SA/C fibre addition hot-pressed at 1800°C for 1 h in Ar atmosphere under a pressure of 62 MPa was 98.4%, whereas that of the SiC composite with acid-treated SA/C fibre addition increased to 98.7%. Furthermore, the fracture toughness increased from 5.6 MPa∙m1/2 to 7.0 MPa∙m1/2 for the acid-treated SA/C fibre addition.

You might also be interested in these eBooks

12th INTERNATIONAL CERAMICS CONGRESS PART J

View Preview

Info:

Periodical:

Advances in Science and Technology (Volume 71)

Pages:

127-132

DOI:

https://doi.org/10.4028/www.scientific.net/AST.71.127

Citation:

Cite this paper

Online since:

October 2010

Authors:

H. Moriyasu, J. Kita, H. Suemasu, Ian J. Davies, S. Koda, K. Itatani

Keywords:

Acid Treatment, Carbon Interface, Dispersibility, Fracture Toughness, Relative Density, SiC Composite

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] S. Zhu, M. Mizuno, Y. Kagawa, J. Cao, Y. Nagano and H. Kaya: J. Am. Ceram. Soc. Vol. 82 (1999), p.117.

Google Scholar

[2] T. Kameda, S. Suyama, Y. Itou and K. Nishida: J. Ceram. Soc. Japan Vol. 107 (1999), p.622.

Google Scholar

[3] T. Tanaka, N. Tamari, I. Kondo and M. Isawa: Ceram. Int. Vol. 24 (1998), p.365.

Google Scholar

[4] X. He, Y. Guo, Z. Yu and D. Jia: Mater. Sci. Eng. A Vol. 527 (2009), p.334.

Google Scholar

[5] K. Yoshida and T. Yano: J. Ceram. Soc. Japan Vol. 110 (2002), p.986.

Google Scholar

[6] K. Itatani, I. J. Davies, and H. Suemasu: Key Eng. Mater. Vol. 403 (2009), p.260.

Google Scholar

[7] K. Kumagawa, H. Yamaoka, M. Shibuya and T. Yamamura: Ceram. Eng. Sci. Proc. Vol. 19 (1998), p.66.

Google Scholar

[8] J. Kita, H. Suemasu, Ian J. Davies, S. Koda and K. Itatani: submitted to J. Mater. Sci. (2009).

Google Scholar

[9] M. Sato, K. Itatani, T. Tanaka, I. J. Davies and S. Koda: J. Mater. Sci. Vol. 41 (2006), p.7466.

Google Scholar

[10] K. Itatani, I. J. Davies and H. Suemasu: Key Eng. Mater. Vol. 403(2009), p.257.

Google Scholar

[11] H. Tanaka: Bull. Ceram. Soc. Ceram. Japan Vol. 42 (2007), p.343.

Google Scholar