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film deposition

chemical process

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advanced ceramics

  • Steps in doctor blading, a tape-casting process employed in the production of ceramic films. Ceramic powder and solvent are mixed to form a slurry, which is treated with various additives and binders, homogenized, and then pumped directly to a tape-casting machine. There the slurry is continuously cast onto the surface of a moving carrier film. The edge of a smooth knife, generally called a doctor blade, spreads the slurry onto the carrier film at a specified thickness, thereby generating a flexible tape. Heat lamps gently evaporate the solvent, and the dry tape is peeled away from the carrier film and rolled onto a take-up reel for additional processing.
    In advanced ceramics: Film deposition

    Advanced ceramics intended for electromagnetic and mechanical applications are often produced as thin or thick films. Thick films are commonly produced by paper-casting methods, described above, or by spin-coating. In spin-coating a suspension of ceramic particles is deposited on a rapidly rotating substrate,…

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Quick Facts
Born:
1425?, Gernsheim, Hesse [Germany]
Died:
1502, Mainz [Germany]

Peter Schöffer (born 1425?, Gernsheim, Hesse [Germany]—died 1502, Mainz [Germany]) was a German printer who assisted Johannes Gutenberg and later opened his own printing shop.

Schöffer studied in Paris, where he supported himself as a copyist, and then became an apprentice to Gutenberg in Mainz. He entered the printing business as the partner of Gutenberg’s creditor, Johann Fust, whose daughter he later married. The best-surviving examples of his craftsmanship are the 1457 Mainz Psalter and the 1462 48-line Bible. The Psalter was the first printed book to give the date and place of printing and the printers’ names.

Schöffer cast the first metallic type in matrices and used it for the second edition of the Vulgate Bible. By the time of his death he had printed more than 300 books.

This article was most recently revised and updated by Encyclopaedia Britannica.