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WO2009004710A1 - Glass composition - Google Patents

Glass composition Download PDF

Info

Publication number
WO2009004710A1
WO2009004710A1 PCT/JP2007/063256 JP2007063256W WO2009004710A1 WO 2009004710 A1 WO2009004710 A1 WO 2009004710A1 JP 2007063256 W JP2007063256 W JP 2007063256W WO 2009004710 A1 WO2009004710 A1 WO 2009004710A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass composition
glass
lead
transparency
fluorine
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.)
Ceased
Application number
PCT/JP2007/063256
Other languages
French (fr)
Japanese (ja)
Inventor
Jie Fu
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.)
Ohara Inc
Original Assignee
Ohara Inc
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 Ohara Inc filed Critical Ohara Inc
Priority to PCT/JP2007/063256 priority Critical patent/WO2009004710A1/en
Publication of WO2009004710A1 publication Critical patent/WO2009004710A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
    • C03C3/068—Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths
    • 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
    • C03C4/00—Compositions for glass with special properties
    • C03C4/08—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths
    • C03C4/087—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths for X-rays absorbing glass

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

A glass composition that belonging to a glass series with none of lead component simultaneously containing a rare earth oxide and fluorine, has a shielding capacity comparable to lead glass, being high in surface hardness and extremely high in transparency within visible region. The glass composition is one containing, by mass% on oxide basis, 1 to 85% Ln2O3 (Ln is at least one member selected from the group consisting of La, Y, Gd, Tb, Dy, Yb and Lu) and 0.1 to 20% fluorine and exhibiting a lead equivalent of 0.03 mmPb/mm or higher to 150 kV X-rays. Further, by incorporating SiO2 and/or B2O3 and/or GeO2 and/or P2O5 in a total amount of 10 to 70%, there can be obtained a glass composition that is stable with respect to devitrification, having high surface hardness, and that excels in transparency and radiation ray shielding capacity.
PCT/JP2007/063256 2007-07-02 2007-07-02 Glass composition Ceased WO2009004710A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/063256 WO2009004710A1 (en) 2007-07-02 2007-07-02 Glass composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/063256 WO2009004710A1 (en) 2007-07-02 2007-07-02 Glass composition

Publications (1)

Publication Number Publication Date
WO2009004710A1 true WO2009004710A1 (en) 2009-01-08

Family

ID=40225780

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/063256 Ceased WO2009004710A1 (en) 2007-07-02 2007-07-02 Glass composition

Country Status (1)

Country Link
WO (1) WO2009004710A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011084578A1 (en) 2009-12-17 2011-07-14 Dsm Ip Assets, B.V. Substrate-based additive fabrication process
US8168693B2 (en) 2010-02-12 2012-05-01 Schott Ag X-ray opaque barium-free glasses and uses thereof
CN104558703A (en) * 2014-11-27 2015-04-29 厦门虹鹭钨钼工业有限公司 Tungsten-base composite material applied to ray shielding and preparation method thereof
WO2016121655A1 (en) * 2015-01-28 2016-08-04 日本電気硝子株式会社 Glass material and method for manufacturing same
US10227254B2 (en) 2015-01-28 2019-03-12 Nippon Electric Glass Co., Ltd. Glass material and method for manufacturing same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56169150A (en) * 1980-05-30 1981-12-25 Ohara Inc Optical glass
JPS5734044A (en) * 1980-08-07 1982-02-24 Nippon Kogaku Kk <Nikon> Optical glass
JPS61215234A (en) * 1985-03-22 1986-09-25 Nippon Kogaku Kk <Nikon> Glass composition for glass ionomer cement
JPH10226533A (en) * 1997-02-10 1998-08-25 Nikon Corp Radiation shielding glass
JP2000143430A (en) * 1998-10-27 2000-05-23 Carl Zeiss:Fa Barium-free x-ray-opaque dental glass and dental glass/ polymer composite material and use thereof
JP2007063064A (en) * 2005-08-31 2007-03-15 Ohara Inc Glass

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56169150A (en) * 1980-05-30 1981-12-25 Ohara Inc Optical glass
JPS5734044A (en) * 1980-08-07 1982-02-24 Nippon Kogaku Kk <Nikon> Optical glass
JPS61215234A (en) * 1985-03-22 1986-09-25 Nippon Kogaku Kk <Nikon> Glass composition for glass ionomer cement
JPH10226533A (en) * 1997-02-10 1998-08-25 Nikon Corp Radiation shielding glass
JP2000143430A (en) * 1998-10-27 2000-05-23 Carl Zeiss:Fa Barium-free x-ray-opaque dental glass and dental glass/ polymer composite material and use thereof
JP2007063064A (en) * 2005-08-31 2007-03-15 Ohara Inc Glass

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011084578A1 (en) 2009-12-17 2011-07-14 Dsm Ip Assets, B.V. Substrate-based additive fabrication process
US8168693B2 (en) 2010-02-12 2012-05-01 Schott Ag X-ray opaque barium-free glasses and uses thereof
CN104558703A (en) * 2014-11-27 2015-04-29 厦门虹鹭钨钼工业有限公司 Tungsten-base composite material applied to ray shielding and preparation method thereof
CN104558703B (en) * 2014-11-27 2018-11-09 厦门虹鹭钨钼工业有限公司 A kind of tungsten-based composite material and preparation method thereof applied to alpha ray shield
WO2016121655A1 (en) * 2015-01-28 2016-08-04 日本電気硝子株式会社 Glass material and method for manufacturing same
US10227254B2 (en) 2015-01-28 2019-03-12 Nippon Electric Glass Co., Ltd. Glass material and method for manufacturing same

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