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    https://en.wikipedia.org › wiki › Coercivity

    Coercivity - Wikipedia

    • Coercivity, also called the magnetic coercivity, coercive field or coercive force, is a measure of the ability of a ferromagnetic material to withstand an external magnetic field without becoming demagnetized. Coercivity is usually measured in oersted or ampere/meter units and is denoted HC. An analogous property in electrical engineering and materials science, electric c… 展开

    Definitions

    Coercivity in a ferromagnetic material is the intensity of the applied magnetic field (H field) required to … 展开

    Experimental determination

    Typically the coercivity of a magnetic material is determined by measurement of the magnetic hysteresis loop, also called the magnetization curve, as illustrated in the figure above. The apparatus used to acquire the data … 展开

    Theory

    At the coercive field, the vector component of the magnetization of a ferromagnet measured along the applied field direction is zero. There are two primary modes of magnetization reversal: single-domain rotation and … 展开

    The Ultimate Understanding Of Magnetic Coercivity
    jdamagnet.com
    Significance

    As with any hysteretic process, the area inside the magnetization curve during one cycle represents the work that is performed on the material by the external field in reversing the magnetization, and is dissipated as he… 展开

    External links

    • Magnetization reversal applet (coherent rotation)
    • For a table of coercivities of various magnetic recording media, see "Degaussing Data Storage Tape Magnetic Media" (PDF), at fujifilmusa.com.… 展开

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