JP7431872B2 - 改善された曲げ性および化学強化性を有する薄板ガラス - Google Patents
改善された曲げ性および化学強化性を有する薄板ガラス Download PDFInfo
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- 239000011521 glass Substances 0.000 title claims description 305
- 238000003426 chemical strengthening reaction Methods 0.000 title claims description 43
- 239000000203 mixture Substances 0.000 claims description 31
- 238000005728 strengthening Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 25
- 239000002253 acid Substances 0.000 claims description 21
- 230000009975 flexible effect Effects 0.000 claims description 15
- 238000000137 annealing Methods 0.000 claims description 14
- 238000002834 transmittance Methods 0.000 claims description 14
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 13
- 238000005342 ion exchange Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 7
- 239000005357 flat glass Substances 0.000 claims description 6
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000002425 crystallisation Methods 0.000 claims description 5
- 230000008025 crystallization Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 239000005341 toughened glass Substances 0.000 claims description 5
- 238000011282 treatment Methods 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 3
- 239000005345 chemically strengthened glass Substances 0.000 claims description 3
- 235000010333 potassium nitrate Nutrition 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000010306 acid treatment Methods 0.000 claims description 2
- NLSCHDZTHVNDCP-UHFFFAOYSA-N caesium nitrate Inorganic materials [Cs+].[O-][N+]([O-])=O NLSCHDZTHVNDCP-UHFFFAOYSA-N 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims 1
- 239000011734 sodium Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 17
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 12
- 230000000903 blocking effect Effects 0.000 description 10
- 235000002639 sodium chloride Nutrition 0.000 description 10
- 150000003839 salts Chemical class 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 239000006059 cover glass Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 229910018068 Li 2 O Inorganic materials 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 229910006404 SnO 2 Inorganic materials 0.000 description 5
- 229910001413 alkali metal ion Inorganic materials 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 229910000323 aluminium silicate Inorganic materials 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 4
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 4
- 238000004031 devitrification Methods 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
- 239000003607 modifier Substances 0.000 description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 4
- 239000012745 toughening agent Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 229910004283 SiO 4 Inorganic materials 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 3
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 3
- 150000001342 alkaline earth metals Chemical class 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000001627 detrimental effect Effects 0.000 description 3
- 238000003280 down draw process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
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- 238000000227 grinding Methods 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 229920001621 AMOLED Polymers 0.000 description 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000005354 aluminosilicate glass Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000007500 overflow downdraw method Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 235000010344 sodium nitrate Nutrition 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- KOPBYBDAPCDYFK-UHFFFAOYSA-N Cs2O Inorganic materials [O-2].[Cs+].[Cs+] KOPBYBDAPCDYFK-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- XOJVVFBFDXDTEG-UHFFFAOYSA-N Norphytane Natural products CC(C)CCCC(C)CCCC(C)CCCC(C)C XOJVVFBFDXDTEG-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 239000005347 annealed glass Substances 0.000 description 1
- 238000004630 atomic force microscopy Methods 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 239000006063 cullet Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- AKUNKIJLSDQFLS-UHFFFAOYSA-M dicesium;hydroxide Chemical compound [OH-].[Cs+].[Cs+] AKUNKIJLSDQFLS-UHFFFAOYSA-M 0.000 description 1
- 230000000755 effect on ion Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- -1 oxygen anions Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000005394 sealing glass Substances 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000006058 strengthened glass Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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
- C03C3/11—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen
- C03C3/112—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine
- C03C3/115—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine containing boron
- C03C3/118—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine 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
-
- 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
- C03B17/06—Forming glass sheets
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
- C03B25/04—Annealing glass products in a continuous way
- C03B25/10—Annealing glass products in a continuous way with vertical displacement of the glass products
- C03B25/12—Annealing glass products in a continuous way with vertical displacement of the glass products of glass sheets
-
- 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
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
-
- 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
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
- C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
-
- 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
- C03C3/097—Glass compositions containing silica with 40% to 90% silica, by weight containing phosphorus, niobium or tantalum
-
- 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
- C03C3/11—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen
- C03C3/112—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine
-
- 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
-
- 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
- C03C2204/00—Glasses, glazes or enamels with special properties
- C03C2204/08—Glass having a rough surface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Ceramic Engineering (AREA)
- Glass Compositions (AREA)
- Electroluminescent Light Sources (AREA)
- Liquid Crystal (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Surface Treatment Of Glass (AREA)
Description
ガラス物品:ガラス物品は、任意のサイズであってよい。例えば、ガラス物品は、巻かれた長く薄いガラスリボン(ガラスロール)、大きなガラスシート、ガラスロールから切り取られた、もしくはガラスシートから切り取られたより小さなガラス部分、または単一の小さなガラス物品(例えば、FPSまたはディスプレイカバーガラス)等であってもよい。
本課題は、本発明の独立請求項により解決される。特に、本課題は、化学強化前に最大500μmの厚さtを有し、以下の成分:
ここで、化学強化後に、ガラスが、BACT=(CS*DoL)/(t*E)として計算される、0.00050超のBACT(曲げ性および化学強化性)、および/またはNS=CS/Eとして計算される、0.0085超のNS(正規化された剛性)を有し、
ここで、CSが、強化されたガラス物品の片側で測定された圧縮応力(MPa)であり、DoL(μm)が、ガラス物品の片側におけるすべてのイオン交換層の合計深さであり、tが、ガラス物品の厚さ(μm)であり、Eが、弾性率(MPa)である、
ガラスにより解決される。
a) 組成物を用意する工程、
b) 組成物を溶融する工程、
c) ガラスを板ガラスプロセスで製造する工程
を含む、本発明のガラスを製造する方法もある。
例示的ガラスを作製し、幾つかの特性を測定した。試験したガラス組成物は、以下の表1~3に見ることができる。
以下の表1~3は、本発明の代表的な例である例示的なガラス組成を重量%で示す。
適切な原材料を使用してガラスをダウンドローにより製造して、表1~3に記載の最終的な組成を得た。1010dPas~1015dPasのガラス粘度に相応する温度領域での平均冷却速度は、50℃/秒であった。これらのガラスは、以下の表に示される特性を有していた。
Claims (28)
- 化学強化前に75μm未満の厚さtを有し、以下の成分:
ここで、化学強化後に、前記ガラスが、BACT=(CS*DoL)/(t*E)として計算される、0.0010超のBACT(曲げ性および化学強化性)、および/またはNS=CS/Eとして計算される、0.0085超のNS(正規化された剛性)を有し、
ここで、CSが、前記強化されたガラス物品の片側で測定された圧縮応力(MPa)であり、DoL(μm)が、前記ガラス物品の片側におけるすべてのイオン交換層の合計深さであり、tが、前記ガラス物品の厚さ(μm)であり、Eが、弾性率(MPa)であり、前記ガラスが、ガラス厚さ500μm以下である場合に、300nmの波長での透過率10%未満を有する、ガラス。 - TiO2が、0.1~2重量%である、請求項1または2記載のガラス。
- CeO2が、0.01~0.5重量%である、請求項1または2記載のガラス。
- 0.00122以上のBACTを有する、請求項1~4のいずれかに記載のガラス。
- 0.010超のNSを有する、請求項1から5までのいずれか1項記載のガラス。
- (ZrO2+Al2O3+TiO2)の合計が15~30重量%の範囲にあり、かつ/またはNa2O/(Na2O+K2O)が0.4超1以下である、請求項1から6までのいずれか1項記載のガラス。
- 化学強化前のガラス厚さが1μm超50μm未満である、請求項1から7までのいずれか1項記載のガラス。
- 60~120GPaの弾性率を有する、請求項1から8までのいずれか1項記載のガラス。
- 表面圧縮応力(CS)が700MPa以上2000MPa未満である、請求項9に記載のガラス。
- DoLが1μm超0.3*t未満(t=μmでの厚さ)である、請求項9または10に記載のガラス。
- 50未満の耐酸性(mg/dm2)を有する、請求項1から11までのいずれか1項記載のガラス。
- UV暴露の前後で測定した透過率の差(350nmの波長)が、500μm以下のガラス厚さに対して45%未満であり、かつ/またはUV暴露の前後で測定した透過率の差(400nmの波長)が、500μm以下のガラス厚さに対して10%未満である、請求項1から12までのいずれか1項記載のガラス。
- 300nmの波長での透過率が、200μm未満のガラス厚さに対して5%未満である、請求項1から13までのいずれか1項記載のガラス。
- 酸処理(6mol/lのHCl、6時間の沸騰)後のヘイズ値が90%未満であり、かつ/または気候処理(温度25~85℃、湿度50%以上90%以下、30日間~365日間の貯蔵)後のヘイズ値が5%未満である、請求項1から14までのいずれか1項記載のガラス。
- 粗さRaが5nm未満の少なくとも1つの表面を有する、請求項1から15までのいずれか1項記載のガラス。
- 加工温度T4と最大結晶化温度TOEGとの間の温度差ΔTが50Kより高い、請求項1から16までのいずれか1項記載のガラス。
- CTEが、20℃~300℃の温度範囲で5ppm/K超12ppm/K未満である、請求項1から17までのいずれか1項記載のガラス。
- a) 組成物を用意する工程、
b) 組成物を溶融する工程、
c) ガラスを板ガラスプロセスで製造する工程
を含む、請求項1から18までのいずれか1項記載のガラスを製造する方法。 - 前記ガラスを引抜加工で製造する、請求項19記載の方法。
- 工程c)で、1010dPas~1015dPasのガラス粘度に相応する温度領域での平均冷却速度が、5℃/秒超200℃/秒未満である、請求項19または20に記載の方法。
- 工程c)で、アニール点と室温との間の温度領域でのアニーリング速度が、50℃/分未満である、請求項19~21のいずれかに記載の方法。
- 前記ガラスを化学的に強化する工程d)をさらに含む、請求項19~22のいずれかに記載の方法。
- 化学強化が、KNO3を含む強化剤で強化することを含む少なくとも1回の強化工程を含む、請求項23記載の方法。
- 化学強化が、CsNO3を含む強化剤で強化することを含む少なくとも1回の強化工程を含む、請求項23または24に記載の方法。
- 化学強化を320℃超500℃未満の温度で行う、請求項23~25のいずれかに記載の方法。
- 化学強化の総時間が0.01~20時間である、請求項23~26のいずれかに記載の方法。
- 折り畳み可能なディスプレイ又はフレキシブルディスプレイの分野における用途での、請求項1から18までのいずれか1項記載のガラスの使用。
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EP3936485A1 (en) * | 2020-07-06 | 2022-01-12 | Schott Ag | Flexible glass element and method for producing the same |
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CN112110646B (zh) * | 2020-09-25 | 2022-02-11 | 成都光明光电股份有限公司 | 玻璃材料、梯度折射率玻璃及其制造方法 |
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WO2023154179A1 (en) | 2022-02-09 | 2023-08-17 | Corning Incorporated | Glass for memory recording media |
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