PROCESS OF ION EXCHANGE OF GLASS
Glass articles can be strengthened by applying thereto a salt of an alkali metal, different from the alkali metal in the glass, and carrying out an ion exchange at a temperature below the strain point of the glass. The salt, which must contain an alkali metal carbonate, is deposited on the glass art...
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| creator | GRUBB E,US LA DUE A,US |
| description | Glass articles can be strengthened by applying thereto a salt of an alkali metal, different from the alkali metal in the glass, and carrying out an ion exchange at a temperature below the strain point of the glass. The salt, which must contain an alkali metal carbonate, is deposited on the glass article as a mixture with water, or an organic solvent or both. The ion exchange is carried out for a period of time to form a compressive stress surface layer on the glass article, but for a time insufficient to provide ion exchange to a substantial degree in the interior portion of the glass and for a time insufficient to cause substantial stress relaxation of the glass in the surface layer. |
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The salt, which must contain an alkali metal carbonate, is deposited on the glass article as a mixture with water, or an organic solvent or both. The ion exchange is carried out for a period of time to form a compressive stress surface layer on the glass article, but for a time insufficient to provide ion exchange to a substantial degree in the interior portion of the glass and for a time insufficient to cause substantial stress relaxation of the glass in the surface layer.</description><language>eng</language><subject>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS ; CHEMISTRY ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; GLASS ; JOINING GLASS TO GLASS OR OTHER MATERIALS ; METALLURGY ; MINERAL OR SLAG WOOL ; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS ; SURFACE TREATMENT OF GLASS ; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ; TECHNICAL SUBJECTS COVERED BY FORMER USPC ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><creationdate>1974</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19741029&DB=EPODOC&CC=US&NR=3844754A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19741029&DB=EPODOC&CC=US&NR=3844754A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GRUBB E,US</creatorcontrib><creatorcontrib>LA DUE A,US</creatorcontrib><title>PROCESS OF ION EXCHANGE OF GLASS</title><description>Glass articles can be strengthened by applying thereto a salt of an alkali metal, different from the alkali metal in the glass, and carrying out an ion exchange at a temperature below the strain point of the glass. The salt, which must contain an alkali metal carbonate, is deposited on the glass article as a mixture with water, or an organic solvent or both. 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The salt, which must contain an alkali metal carbonate, is deposited on the glass article as a mixture with water, or an organic solvent or both. The ion exchange is carried out for a period of time to form a compressive stress surface layer on the glass article, but for a time insufficient to provide ion exchange to a substantial degree in the interior portion of the glass and for a time insufficient to cause substantial stress relaxation of the glass in the surface layer.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS |
| title | PROCESS OF ION EXCHANGE OF GLASS |
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