Please use this identifier to cite or link to this item: doi:10.22028/D291-24390
Title: Decreasing lead exposure from lead crystal by sol-gel coating
Author(s): Mennig, Martin
Schmidt, Helmut K.
Maetze, Gunter
Fink, Claudia
Betzholz, Sabine
Language: English
Year of Publication: 1991
OPUS Source: Fundamentals of the glass manufacturing process 1991 : proceedings of the first conference of the European Society of Glass Science and Technology; Sheffield, England, 9-12 September 1991. - Sheffield : Society of Glass Technology, [1992], S. 96-99
SWD key words: Kristallglas
DDC notations: 620 Engineering and machine engineering
Publikation type: Conference Paper
Abstract: Investigations to develop sol-gel coatings on lead crystal glasses were carried out to reduce the migration of lead into beverages. Therefore three compositions (SiO2, Na2O/B2O3/SiO2 and B2O3/SiO2) were tested as coating materials. The best result was obtained from the B2O3/SiO2 system. The coatings were densified to clear, transparent layers about 0.2 µm thick, not influencing the appearance of the lead crystal glass surface. For the coating of the inner walls of lead crystal containers, a special process has been developed. The coating reduces the leaching of lead to some percent of the value of uncoated surfaces and does not lose its effectiveness after 20 cycles in a heavy duty laboratory dishwasher.
Link to this record: urn:nbn:de:bsz:291-scidok-26895
ISBN: 0-900682-21-3
Date of registration: 8-Feb-2010
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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