초록 ▼

A process is disclosed for producing ceramic layers. A dispersion of a strongly acid hydrolysed metal composed and of a metal oxide powder is hardened at low temperatures into a mechanically stable ceramic layer. 29 g of titanium tetraisopropylate are hydrolysed in 14 g water, peptised in 42 g hydro

A process is disclosed for producing ceramic layers. A dispersion of a strongly acid hydrolysed metal composed and of a metal oxide powder is hardened at low temperatures into a mechanically stable ceramic layer. 29 g of titanium tetraisopropylate are hydrolysed in 14 g water, peptised in 42 g hydrochloric acid (25%) and mixed with 15 g nanocrystalline titanium dioxide. A 10 .mu.m thick ceramic layer produced with this paste is hardened within 5 minutes in a hot air flow at 100.degree. C. This ceramic layer adheres to glass, ceramic materials, metals, and is solvent and water-resistant.

대표청구항 ▼

[ I claim:] [1.] A process of producing a ceramic layer for use in filter membranes, comprising the steps of:hydrolyzing 10-40 parts by weight of a hydrolyzable titanium compound with 5-20 parts by weight of water to provide a hydrolyzed compound;peptizing the hydrolyzed compound by addition of and

[ I claim:] [1.] A process of producing a ceramic layer for use in filter membranes, comprising the steps of:hydrolyzing 10-40 parts by weight of a hydrolyzable titanium compound with 5-20 parts by weight of water to provide a hydrolyzed compound;peptizing the hydrolyzed compound by addition of and blending with an acid to form a solution;adding and blending to the solution 10-25 parts by weight of aluminum oxide having a particle size exceeding 300 nm to form a dispersion;applying a layer of the dispersion onto a substrate selected from the group consisting of glass, metal, ceramic and plastics; andallowing the dispersion to solidify on the substrate at a temperature of approximately 100.degree. C. within approximately 5 minutes.