Micromechanism of time dependent deformation and fracture of silicon carbide under High temperature condition

A. T. Yokobori, T. Yano, T. E. Mitchell

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Superplaslticity is a phenomenon which shows large tensile elongation under fine grains (100% strain, d≦1 μm). Silicon nitride and sialon show this property. Superplasiticity apparently deforms under constant stress in the tensile stress-strain relation. Therefore, estimation of creep ductility will be useful to predict the characteristics of superplasiticity for these materials . In this paper, creep ductility of silicon carbide was characterized based on previously proposed method by one of authors. Furthermore, the micromechanism of creep deformation was investigated using TEM. From these results and by comparison with the characteristics of silicon nitride, we investigated the possibility and mechanical condition of superplasiticity for these materials.

    Original languageEnglish
    Pages (from-to)109-116
    Number of pages8
    JournalMaterials Science Forum
    Volume233-234
    Publication statusPublished - 1997 Jan 1

    Keywords

    • Creep Ductility
    • Micromechanism
    • Silicon Carbide
    • Silicon Nitride
    • Void Formation

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

    Fingerprint Dive into the research topics of 'Micromechanism of time dependent deformation and fracture of silicon carbide under High temperature condition'. Together they form a unique fingerprint.

    Cite this