Monocrystalline silicates

Stock material or miscellaneous articles – Composite – Of silicon containing

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156600, 156617SP, 156622, 156624, 428539, B32B 904

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040469549

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.

REFERENCES:
patent: 3564358 (1971-02-01), Hahnlein
Filby et al. Single-Crystal Films of Silicon on Insulators, In Brit. J. Applied Phys. 18: pp. 1357-1382, 1967.

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