STP844

    Static Fatigue in High-Performance Ceramics

    Published: Jan 1984


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    Abstract

    Static fatigue failure in ceramics is often assumed to be due to one mechanism: slow crack growth from preexisting flaws. Multiple mechanisms of failure may be operative, however. Stress rupture data for two materials, hot-pressed silicon nitride and sintered silicon carbide, will be presented and interpreted in terms of multiple mechanisms.

    Keywords:

    static fatigue, ceramics, crack growth, strength, materials fracture, delayed failure, stress rupture, creep fracture, structural reliability, brittle materials


    Author Information:

    Quinn, GD
    Ceramic engineer, U.S. Army Materials and Mechanics Research Center, Watertown, Mass.


    Paper ID: STP35244S

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP35244S


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