The preparation and characterization of machinable mica glass‐ceramics by the sol‐gel process are described. The thermal behavior of the precursor and the optimum conditions for calcination, molding, and sintering are given. Physical, chemical, thermal, electrical, and mechanical properties are investigated, and the machinability of the ceramics is discussed.

Mica glass‐ceramics are prepared by the sol‐gel process using KF, MgSiF6, Al(OiPr)3, Si(OEt)4, and Mg(OMe)2 as starting materials.