Effects of Preform Densification on Microstructure and Mechanical Properties of SiC/SiC Composites

被引：2

作者：

Nakazato, Naofumi ^{[1
]}

Kishimoto, Hirotatsu ^{[2
]}

Park, Joon-Soo ^{[2
]}

Jung, Hun-Chea ^{[3
]}

Kohno, Yutaka ^{[2
]}

Kohyama, Akira ^{[2
,3
]}

机构：

[1] Muroran Inst Technol, Grad Sch Mech Syst & Mat Engn, Muroran, Hokkaido 0508585, Japan

[2] Muroran Inst Technol, Coll Design & Mfg Technol, Muroran, Hokkaido 0508585, Japan

[3] Muroran Inst Technol, OASIS, Muroran, Hokkaido 0508585, Japan

来源：

JOURNAL OF THE JAPAN INSTITUTE OF METALS | 2011年 / 75卷 / 03期

关键词：

SiC/SiC composites; nano-infiltration and transient eutectic-phase process; preform densification; CERAMIC-MATRIX COMPOSITES; CARBIDE COMPOSITES; SILICON;

D O I：

10.2320/jinstmet.75.146

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

As an advanced liquid phase sintering method of SiC/SiC composites production, Nano-Infiltration and Transient Eutectic-phase (NITE) process has been intensively studied, where large volumetric shrinkage during sintering process is an issue to be solved. The objective of this work is to investigate the effects of preform densification on microstructure and mechanical properties of SiC/SiC composites fabricated by hot-press of preforms. The significant improvement seen in preform is the suppression of macro-pores at inter-/intra-fiber-bundles. Finally, this is contributing the reduction of volumetric shrinkage to suppress fiber damage and micro pore formation and eliminate macro pore formation after sintering. And, the composites fabricated presents microstructure homogeneity. The improvement in structure is reflected in high flexural strength. However, pseudo-ductility was worth than anticipated. The brittle behavior of the composites is interpreted to be caused by the damage of PyC interphase.

引用

页码：146 / 151

页数：6

共 11 条

[1] Preparation of SiC/SiC composites by hot pressing, using Tyranno-SA fiber as reinforcement [J].

Dong, SM ;

Katoh, Y ;

Kohyama, A .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2003, 86 (01) :26-32

[2] Liquid phase sintering of SiC with additions of Y2O3, Al2O3 and SiO2 [J].

Gomez, E ;

Echeberria, J ;

Iturriza, I ;

Castro, F .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2004, 24 (09) :2895-2903

[3] Polymer derived ceramic matrix composites [J].

Jones, R ;

Szweda, A ;

Petrak, D .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 1999, 30 (04) :569-575

[4] Thermo-mechanical properties carbide composites fabricated and microstructure of silicon by nano-infiltrated transient eutectoid process [J].

Katoh, Y ;

Dong, SM ;

Kohyama, A .

FUSION ENGINEERING AND DESIGN, 2002, 61-62 :723-731

[5]

Kohyama A., 2002, Ceramic Engineering and Science Proceedings, V23, P311

[6] Design, preparation and properties of non-oxide CMCs for application in engines and nuclear reactors: an overview [J].

Naslain, R .

COMPOSITES SCIENCE AND TECHNOLOGY, 2004, 64 (02) :155-170

[7] Recent advances and issues in development of silicon carbide composites for fusion applications [J].

Nozawa, T. ;

Hinoki, T. ;

Hasegawa, A. ;

Kohyama, A. ;

Katoh, Y. ;

Snead, L. L. ;

Henager, C. H., Jr. ;

Hegeman, J. B. J. .

JOURNAL OF NUCLEAR MATERIALS, 2009, 386-88 :622-627

[8] Development of a reaction-sintered silicon carbide matrix composite [J].

Sayano, A ;

Sutoh, C ;

Suyama, S ;

Itoh, Y ;

Nakagawa, S .

JOURNAL OF NUCLEAR MATERIALS, 1999, 271 :467-471

[9] Influence of pyrolytic carbon interface thickness on microstructure and mechanical properties of SiC/SiC composites by NITE process [J].

Shimoda, Kazuya ;

Park, Joon-Soo ;

Hinoki, Tatsuya ;

Kohyama, Akira .

COMPOSITES SCIENCE AND TECHNOLOGY, 2008, 68 (01) :98-105

[10] Recent developments in fibers and interphases for high temperature ceramic matrix composites [J].

Tressler, RE .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 1999, 30 (04) :429-437

← 1 2 →