Article citationsMore>>

Y. Katoh, L. L. Snead, C. H. Henager Jr., A. Hasegawa, A. Kohyama, B. Riccardi and H. Hegeman, “Current Status and Critical Issues for Development of SiC Composites for Fusion Applications,” Journal of Nuclear Materials, Vol. 467-370, No. Part A, 2007, pp. 659-671.

has been cited by the following article:

• TITLE: Effects of Pressure during Preform Densification on SiC/SiC Composites

  AUTHORS: Naofumi Nakazato, Akira Kohyama, Yutaka Kohno

  KEYWORDS: SiC/SiC Composites; NITE Method; Near-Net Shaping; Preform Densification

  JOURNAL NAME: Open Journal of Inorganic Non-metallic Materials, Vol.3 No.1, January 29, 2013

  ABSTRACT: The nano-infiltration and transient eutectic-phase (NITE) method is one of the most attractive methods for fabrication of SiC and SiC/SiC composites. In the NITE method, preform densification is essential option for damage less near-net shaping technique. However, optimization of preform densification is insufficient yet. The objective of this study is to evaluate the effects of pressure during preform densification on SiC/SiC composites. The preform before preform densification has many pores in the inter-prepreg sheets. These pores were disappeared by preform densification. As the effects of pressure on preform, densification in the intra-fiber-bundle was improved due to increasing pressure. Flexural strength of the preforms with 1 MPa and 17 MPa indicated almost same value. The result suggested that increasing of pressure did not cause any change in fiber properties. In the effects of pressure on the composites, the composites with 17 MPa was exhibited improvement in bulk density and mechanical property, compared with that with 1 MPa.