Coercivity
Coercivity is the measure of a material's ability to resist demagnetization. In other words, it is the strength of the magnetic field required to reduce the magnetization of a material to zero after the magnetization has been driven to saturation. In space and astronautical engineering, coercivity is an important property of magnetic materials used in various applications such as magnetic shielding, attitude control systems, and electric propulsion. High coercivity materials are preferred for these applications as they can maintain their magnetization in the presence of external magnetic fields and thermal fluctuations. Coercivity is typically measured in units of oersteds (Oe) or amperes per meter (A/m).
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