<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Controlled morphologies of β‐SiC nanocrystalline materials are prepared via solid‐state metathesis reaction of sol‐gel derived SiO<sub>2</sub> nanospheres, nanorods, and nanofibers, together with Mg and C powders (600 °C).</p> </abstract>