Method and apparatus for making inorganic webs and structures formed thereof

Abstract From the Canadian patent

64421-395, Abstract of the Disclosure, A large thin web having a coherent crystal morphology throughout its extent is made on a continuous basis by drawing a meniscus of the web material from a hot melt thereof onto a heated support surface which moves relative to the melt so that the liquid is distributed as a thin liquid film over that support surface. The moving support surface advances the film progressively past a chiller which establishes a chill zone at the surface of the film which cools the film material at an isothermal front or boundary therein to a temperature below the melting point of the material so that the material solidifies. Also a crystal, seeding bar is located at the …