Monocrystalline silicates
AssigneeRockwell International Corporation
InventorsMichael F. Ehman, Stanley B. Austerman
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Abstract
Single crystals consisting of various compositions from the quaternary silicate system Al.sub.2 O.sub.3 --CaO--MgO--SiO.sub.2 are grown from the melt. The physical and chemical properties of the single crystal silicates, including akermanite (Ca.sub.2 MgSi.sub.2 O.sub.7), cordierite (Mg.sub.2 Al.sub.4 Si.sub.5 O.sub.18), and mullite (Al.sub.6 Si.sub.2 O.sub.13), make the silicates useful, for example, as substrates for epitaxial semiconductor films.
Claims6
A composite comprising a substrate formed of a monocrystalline silicate material selected from akermanite and mullite and a film of monocrystalline semiconductor material epitaxially disposed on said substrate.
Dependencies are inferred from the claim text.