Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Doctor Blade
Abstract Doctor blade (or tape casting) is one of the widely used techniques for producing thin films on large area surfaces. Tape casting is a relatively new process which was originally developed during the 1940’s as a method of forming thin sheets of piezoelectric materials and capacitors [1] and is now an accepted precision coating method. One patent, issued in 1952, focuses on the use of aqueous and non aqueous slurries applied to moving plaster batts by a doctor blading device [2]. In the doctor blading process, a well-mixed slurry consisting of a suspension of ceramic particles along with other additives (such as binders, dispersants or plasticizers) is placed on a substrate beyond the doctor blade. When a constant relative movement is established between the blade and the substrate, the slurry spreads on the substrate to form a thin sheet which results in a gel-layer upon drying. The doctor blading can operate at speed up to several meters per minute and it is suitable to coat substrate with a very wide range of wet film thicknesses ranging from 20 to several hundred microns.
Doctor Blade
Abstract Doctor blade (or tape casting) is one of the widely used techniques for producing thin films on large area surfaces. Tape casting is a relatively new process which was originally developed during the 1940’s as a method of forming thin sheets of piezoelectric materials and capacitors [1] and is now an accepted precision coating method. One patent, issued in 1952, focuses on the use of aqueous and non aqueous slurries applied to moving plaster batts by a doctor blading device [2]. In the doctor blading process, a well-mixed slurry consisting of a suspension of ceramic particles along with other additives (such as binders, dispersants or plasticizers) is placed on a substrate beyond the doctor blade. When a constant relative movement is established between the blade and the substrate, the slurry spreads on the substrate to form a thin sheet which results in a gel-layer upon drying. The doctor blading can operate at speed up to several meters per minute and it is suitable to coat substrate with a very wide range of wet film thicknesses ranging from 20 to several hundred microns.
Doctor Blade
Berni, A. (Autor:in) / Mennig, M. (Autor:in) / Schmidt, H. (Autor:in)
01.01.2004
4 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
CERAMIC FILTER MANUFACTURING METHODS OF USING DOCTOR BLADE COATER METHOD BY MIXED CERAMIC SLURRY
| Europäisches Patentamt | 2020
| UB Braunschweig | 1920
| British Library Online Contents | 1997
| Online Contents | 2010
| Engineering Index Backfile | 1947