GB1291284A - Compositions for use as low thermal expansion, devitrifying solder glasses or coatings - Google Patents

Compositions for use as low thermal expansion, devitrifying solder glasses or coatings

Info

Publication number
GB1291284A
GB1291284A GB5934569A GB5934569A GB1291284A GB 1291284 A GB1291284 A GB 1291284A GB 5934569 A GB5934569 A GB 5934569A GB 5934569 A GB5934569 A GB 5934569A GB 1291284 A GB1291284 A GB 1291284A
Authority
GB
United Kingdom
Prior art keywords
composition
glass
frit
bonding
coatings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5934569A
Inventor
Walter Howard Mills
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anchor Hocking LLC
Original Assignee
Anchor Hocking LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anchor Hocking LLC filed Critical Anchor Hocking LLC
Priority to GB5934569A priority Critical patent/GB1291284A/en
Publication of GB1291284A publication Critical patent/GB1291284A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/0054—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing PbO, SnO2, B2O3

Abstract

1291284 Glass composition ANCHOR HOCKING CORP 4 Dec 1969 59345/69 Heading C1M A composition for use as a crystallizable glass for bonding or coating purposes comprises by weight 13 to 23% PbO, 4 to 11% B 2 O 3 , 4 to 6% Li 2 O, 14 to 19% Al 2 O 3 and 39 to 50% SiO 2 , optionally with a nucleating agent which may comprise 1 to 6% TiO 2 and/or 1 to 3% ZrO 2 or be chromic, the composition additionally including 2 to 5% iron oxide when the proportion of B 2 O 3 os 4 to 6%. The essential components comprise 95% of the total. The balance may include 4% CaO+MgO, up to 5% BaO and up to 2% ZnO. A semi-crystalline material having a coefficient of linear expansion of from - 5 to + 30 Î 10<SP>-7</SP> ‹C.<SP>-1</SP> may be produced from the composition by heating it to a temperature of between 700‹ and 1050‹C. for up to three hours. The glases may be melted under oxidizing conditions at between 1250‹ C. and 1450‹ C. and fritted by quenching. The frit may be used as a glaze or enamel on, for example, glass substrates. For such use they are sprayed on to the substrate as a suspensionin an alcohol-water mixture (e.g. 100 g. of frit mixed with 175 ml. of a solution of 3 parts water to 1 part by volume ethyl alcohol) and reheating in the range 700‹ C. to 1050‹ C. An outer coating of organic material such as PTFE may be applied. The frit may also be used in bonding glass-ceramic parts.
GB5934569A 1969-12-04 1969-12-04 Compositions for use as low thermal expansion, devitrifying solder glasses or coatings Expired GB1291284A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5934569A GB1291284A (en) 1969-12-04 1969-12-04 Compositions for use as low thermal expansion, devitrifying solder glasses or coatings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5934569A GB1291284A (en) 1969-12-04 1969-12-04 Compositions for use as low thermal expansion, devitrifying solder glasses or coatings

Publications (1)

Publication Number Publication Date
GB1291284A true GB1291284A (en) 1972-10-04

Family

ID=10483588

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5934569A Expired GB1291284A (en) 1969-12-04 1969-12-04 Compositions for use as low thermal expansion, devitrifying solder glasses or coatings

Country Status (1)

Country Link
GB (1) GB1291284A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112225458A (en) * 2020-08-13 2021-01-15 航天特种材料及工艺技术研究所 High-temperature-resistant low-expansion-coefficient bonding slurry for ceramic matrix composite and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112225458A (en) * 2020-08-13 2021-01-15 航天特种材料及工艺技术研究所 High-temperature-resistant low-expansion-coefficient bonding slurry for ceramic matrix composite and preparation method thereof

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees