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Published in:
1999 | OriginalPaper | Chapter
Microporosity by Controlled Melting Processes
Author : Dr. Harro Träubel
Published in: New Materials Permeable to Water Vapor
Publisher: Springer Berlin Heidelberg
Included in: Professional Book Archive
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Glass filter frits are known to be produced by a controlled melting process. The melting is carried out in such a way that when a finely divided powder is heated up only the surface of the particles is melted. The particles flow together and adhere by their walls — they sinter. After cooling down, a porous membrane is created. If the particles are heated further, a homogeneous film is created.