JP6149284B2 - 高熱および化学安定性を有する無アルカリガラス組成物 - Google Patents
高熱および化学安定性を有する無アルカリガラス組成物 Download PDFInfo
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- 239000011521 glass Substances 0.000 title claims description 154
- 239000000203 mixture Substances 0.000 title description 26
- 239000000126 substance Substances 0.000 title description 5
- 238000000034 method Methods 0.000 claims description 44
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 31
- 238000004519 manufacturing process Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 21
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 14
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 11
- 230000007547 defect Effects 0.000 claims description 6
- 229910002651 NO3 Inorganic materials 0.000 claims description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 2
- 239000000758 substrate Substances 0.000 description 37
- 229910021417 amorphous silicon Inorganic materials 0.000 description 25
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 23
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 21
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Inorganic materials [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 17
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 17
- 239000002994 raw material Substances 0.000 description 17
- 238000002844 melting Methods 0.000 description 16
- 230000008018 melting Effects 0.000 description 16
- 238000000137 annealing Methods 0.000 description 15
- 230000006835 compression Effects 0.000 description 15
- 238000007906 compression Methods 0.000 description 15
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 12
- 239000006025 fining agent Substances 0.000 description 10
- 239000010977 jade Substances 0.000 description 10
- 239000004576 sand Substances 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 8
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 7
- 229910000323 aluminium silicate Inorganic materials 0.000 description 7
- 238000007499 fusion processing Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- 230000002829 reductive effect Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000003280 down draw process Methods 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 229920005591 polysilicon Polymers 0.000 description 6
- 229910052788 barium Inorganic materials 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 5
- 229910052736 halogen Inorganic materials 0.000 description 5
- 150000002367 halogens Chemical class 0.000 description 5
- 238000007500 overflow downdraw method Methods 0.000 description 5
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 238000007496 glass forming Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000001953 recrystallisation Methods 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052810 boron oxide Inorganic materials 0.000 description 3
- 229910052794 bromium Inorganic materials 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 150000004820 halides Chemical class 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- MIMUSZHMZBJBPO-UHFFFAOYSA-N 6-methoxy-8-nitroquinoline Chemical compound N1=CC=CC2=CC(OC)=CC([N+]([O-])=O)=C21 MIMUSZHMZBJBPO-UHFFFAOYSA-N 0.000 description 2
- 241001289141 Babr Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 101100496858 Mus musculus Colec12 gene Proteins 0.000 description 2
- 238000006124 Pilkington process Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004031 devitrification Methods 0.000 description 2
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000156 glass melt Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 229910052863 mullite Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052712 strontium Inorganic materials 0.000 description 2
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229910016036 BaF 2 Inorganic materials 0.000 description 1
- 229910004261 CaF 2 Inorganic materials 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- -1 SrF 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- WOIHABYNKOEWFG-UHFFFAOYSA-N [Sr].[Ba] Chemical compound [Sr].[Ba] WOIHABYNKOEWFG-UHFFFAOYSA-N 0.000 description 1
- IKWTVSLWAPBBKU-UHFFFAOYSA-N a1010_sial Chemical compound O=[As]O[As]=O IKWTVSLWAPBBKU-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000007507 annealing of glass Methods 0.000 description 1
- 229910052661 anorthite Inorganic materials 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- GHPGOEFPKIHBNM-UHFFFAOYSA-N antimony(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Sb+3].[Sb+3] GHPGOEFPKIHBNM-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 229910000413 arsenic oxide Inorganic materials 0.000 description 1
- 229960002594 arsenic trioxide Drugs 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- GWWPLLOVYSCJIO-UHFFFAOYSA-N dialuminum;calcium;disilicate Chemical compound [Al+3].[Al+3].[Ca+2].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] GWWPLLOVYSCJIO-UHFFFAOYSA-N 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- VEPSWGHMGZQCIN-UHFFFAOYSA-H ferric oxalate Chemical compound [Fe+3].[Fe+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O VEPSWGHMGZQCIN-UHFFFAOYSA-H 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000003286 fusion draw glass process Methods 0.000 description 1
- 239000006066 glass batch Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003842 industrial chemical process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005499 laser crystallization Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 239000011044 quartzite Substances 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013526 supercooled liquid Substances 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Images
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
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
-
- 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
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
- C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
-
- 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
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
-
- 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
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
-
- 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
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Glass Compositions (AREA)
Description
67≦SiO2 ≦70
11≦Al2O3≦13.5
3≦B2O3≦6
3.5≦MgO≦7
4≦CaO≦7
1≦SrO≦4
0≦BaO≦3
0≦SnO2≦0.3
0≦CeO2≦0.3
0.00≦As2O3≦0.5
0.00≦Sb2O3≦0.5
0.01≦Fe2O3≦0.08
F+Cl+Br≦0.4
を含む無アルカリガラスを含み、
ここで、
a)1.05≦(MgO+BaO+CaO+SrO)/Al2O3≦1.25
b)0.7≦(CaO+SrO+BaO)/Al2O3≦0.9
c)0.35≦MgO/(CaO+SrO+BaO)≦0.55
であり、
Al2O3、MgO、CaO、SrOおよびBaOは代表的な酸化物成分のモル%を表す。
局部的なレーザー結晶化加熱によって示されたおおよその条件を最良化するため、表1に開示される成分から製造されたガラスのサンプルは、混合され、溶融され、ドローされて1mmの厚さのシートになる。次にサンプルを縦方向に半分に切断し、一方の参照部分を残し、別の部分を熱処理に供する。参照断片および熱処理断片を顕微鏡下で一緒に検査し、Mitutoyo Quick Vision QV202 Proを用いて、熱処理から得られた寸法の変化を測定した。次に、熱処理したガラスサンプルを590℃の熱処理に45分間晒した。この処理後、試験ガラスは−60ppmの寸法変化を示した。理想的には、本開示のガラスは、−80ppm以下の寸法変化を示す。自動化された光学機器は、各サンプルに数十回の反復測定を行うことから、統計的手法を用いて、サンプルにおける10ppm未満の寸法の変化に対応する、1μm程度の寸法変化を決定することができる。
他の実施態様
1.モル%で表して、
67≦SiO 2 ≦70
11≦Al 2 O 3 ≦13.5
3≦B 2 O 3 ≦6
3.5≦MgO≦7
4≦CaO≦7
1≦SrO≦4
0.5≦BaO≦3
0.02≦SnO 2 ≦0.3
0≦CeO 2 ≦0.3
0.00≦As 2 O 3 ≦0.5
0.00≦Sb 2 O 3 ≦0.5
0.01≦Fe 2 O 3 ≦0.08
F+Cl+Br≦0.4
を含むガラスであって、
1.05≦(MgO+BaO+CaO+SrO)/Al 2 O 3 ≦1.25
0.7≦(CaO+SrO+BaO)/Al 2 O 3 ≦0.9
0.3≦MgO/(CaO+SrO+BaO)≦0.6
ここで、Al 2 O 3 、MgO、CaO、SrOおよびBaOが酸化物成分のモル%を表す、ガラス。
2.化学清澄剤を含む、実施態様1記載のガラス。
3.前記清澄剤が、SnO 2 、Fe 2 O 3 、CeO 2 、Sb 2 O 3 、As 2 O 3 、またはそれらの混合物からなる群より選択される、実施態様2記載のガラス。
4.0.05重量%未満のAs 2 O 3 、Sb 2 O 3 またはそれらの組合せを含む、実施態様1記載のガラス。
5.0.02重量%未満のF、Cl、Brまたはそれらの組合せを含む、実施態様1記載のガラス。
6.Fe 2 O 3 で表した、250〜800ppmの鉄を含む、実施態様1〜5いずれか1項記載のガラス。
7.約1000ppm未満のアルカリ酸化物を含む、実施態様1〜6いずれか1項記載のガラス。
8.最大で約500ppmのZrO 2 を含む、実施態様1〜7いずれか1項記載のガラス。
9.Beta−OHが約0.55未満である、実施態様1〜8いずれか1項記載のガラス。
10.ダウンドロー法を用いて製造される、実施態様1〜9いずれか1項記載のガラスのシート。
11.前記ダウンドロー法がフュージョン法である、実施態様10記載のガラスシート。
12.1ポンド当たりの欠陥が0.2以下のガス状内包物レベルを有する20枚の連続した第4世代シートがダウンドロー法を用いて生産されるように、前記ガラスの製造に用いられるバッチ材料の酸化状態が、硝酸塩の添加を通じて操作され、酸化状態を達成することを特徴とする実施態様1記載のガラスを製造する方法。
Claims (4)
- モル%で表して、
67≦SiO2≦70
11≦Al2O3≦13.5
3≦B2O3≦6
3.5≦MgO≦7
4≦CaO≦7
1≦SrO≦4
0.5≦BaO≦3
0.02≦SnO2≦0.3
0≦CeO2≦0.3
0.01≦Fe2O3≦0.08
F+Cl+Br≦0.4
を含むガラスであって、
1.05≦(MgO+BaO+CaO+SrO)/Al2O3≦1.25
0.7≦(CaO+SrO+BaO)/Al2O3≦0.9
0.3≦MgO/(CaO+SrO+BaO)≦0.6
ここで、Al2O3、MgO、CaO、SrOおよびBaOが酸化物成分のモル%を表し、
As2O3およびSb2O3の量は500ppm以下である、ガラス。 - 1000ppm未満のアルカリ酸化物を含むことを特徴とする請求項1記載のガラス。
- Beta−OHが0.55未満であることを特徴とする請求項1または2記載のガラス。
- 請求項1から3いずれか1項記載のガラスを製造する方法であって、1ポンド当たりの欠陥が0.2以下のガス状内包物レベルを有する20枚の連続した第4世代シートがダウンドロー法を用いて生産されるように、前記ガラスの製造に用いられるバッチ材料の酸化状態が、硝酸塩の添加を通じて操作され、酸化状態を達成することを特徴とする方法。
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