JP2018510109A - ケイ酸リチウム−透輝石ガラスセラミック - Google Patents
ケイ酸リチウム−透輝石ガラスセラミック Download PDFInfo
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- JP2018510109A JP2018510109A JP2017538346A JP2017538346A JP2018510109A JP 2018510109 A JP2018510109 A JP 2018510109A JP 2017538346 A JP2017538346 A JP 2017538346A JP 2017538346 A JP2017538346 A JP 2017538346A JP 2018510109 A JP2018510109 A JP 2018510109A
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- 239000002241 glass-ceramic Substances 0.000 title claims abstract description 137
- 229910052637 diopside Inorganic materials 0.000 title claims abstract description 51
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 14
- 239000011521 glass Substances 0.000 claims description 71
- NWXHSRDXUJENGJ-UHFFFAOYSA-N calcium;magnesium;dioxido(oxo)silane Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O NWXHSRDXUJENGJ-UHFFFAOYSA-N 0.000 claims description 39
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 28
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 28
- 239000013078 crystal Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 17
- 238000002425 crystallisation Methods 0.000 claims description 15
- 230000008025 crystallization Effects 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 15
- WVMPCBWWBLZKPD-UHFFFAOYSA-N dilithium oxido-[oxido(oxo)silyl]oxy-oxosilane Chemical compound [Li+].[Li+].[O-][Si](=O)O[Si]([O-])=O WVMPCBWWBLZKPD-UHFFFAOYSA-N 0.000 claims description 13
- 238000003754 machining Methods 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 12
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 10
- 239000004615 ingredient Substances 0.000 claims description 9
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 8
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 7
- 239000005548 dental material Substances 0.000 claims description 6
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- BPJYAXCTOHRFDQ-UHFFFAOYSA-L tetracopper;2,4,6-trioxido-1,3,5,2,4,6-trioxatriarsinane;diacetate Chemical compound [Cu+2].[Cu+2].[Cu+2].[Cu+2].CC([O-])=O.CC([O-])=O.[O-][As]1O[As]([O-])O[As]([O-])O1.[O-][As]1O[As]([O-])O[As]([O-])O1 BPJYAXCTOHRFDQ-UHFFFAOYSA-L 0.000 claims description 4
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 claims description 3
- 229910005793 GeO 2 Inorganic materials 0.000 claims description 3
- 229910021193 La 2 O 3 Inorganic materials 0.000 claims description 3
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- 229910052701 rubidium Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 17
- 239000002245 particle Substances 0.000 description 13
- 238000000227 grinding Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 239000000919 ceramic Substances 0.000 description 7
- 239000002243 precursor Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000005245 sintering Methods 0.000 description 6
- 241000511976 Hoya Species 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000010899 nucleation Methods 0.000 description 5
- 230000006911 nucleation Effects 0.000 description 5
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 230000004913 activation Effects 0.000 description 4
- 229910052586 apatite Inorganic materials 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229910052661 anorthite Inorganic materials 0.000 description 3
- 239000005313 bioactive glass Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 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 3
- 229910052634 enstatite Inorganic materials 0.000 description 3
- BBCCCLINBSELLX-UHFFFAOYSA-N magnesium;dihydroxy(oxo)silane Chemical compound [Mg+2].O[Si](O)=O BBCCCLINBSELLX-UHFFFAOYSA-N 0.000 description 3
- 239000002667 nucleating agent Substances 0.000 description 3
- -1 ochermanite Chemical compound 0.000 description 3
- 239000011236 particulate material Substances 0.000 description 3
- 239000011265 semifinished product Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000789 Aluminium-silicon alloy Inorganic materials 0.000 description 2
- 229910018119 Li 3 PO 4 Inorganic materials 0.000 description 2
- 238000003991 Rietveld refinement Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000316 bone substitute Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007850 fluorescent dye Substances 0.000 description 2
- 239000000156 glass melt Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000005337 ground glass Substances 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 239000003103 lithium disilicate glass Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 229910052574 oxide ceramic Inorganic materials 0.000 description 2
- 239000011224 oxide ceramic Substances 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000006017 silicate glass-ceramic Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010456 wollastonite Substances 0.000 description 2
- 229910052882 wollastonite Inorganic materials 0.000 description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 229910052612 amphibole Inorganic materials 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052839 forsterite Inorganic materials 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052907 leucite Inorganic materials 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000006065 metasilicate glass ceramic Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229910052611 pyroxene Inorganic materials 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 238000003826 uniaxial pressing Methods 0.000 description 1
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- 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
- C03C10/0018—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 SiO2, Al2O3 and monovalent metal oxide as main constituents
- C03C10/0027—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 SiO2, Al2O3 and monovalent metal oxide as main constituents containing SiO2, Al2O3, Li2O as main constituents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/831—Preparations for artificial teeth, for filling teeth or for capping teeth comprising non-metallic elements or compounds thereof, e.g. carbon
- A61K6/833—Glass-ceramic composites
-
- 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
- C03C10/0009—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 silica as main constituent
-
- 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
-
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- 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
- C03C3/078—Glass compositions containing silica with 40% to 90% silica, by weight containing an oxide of a divalent metal, e.g. an oxide of zinc
-
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- 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
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- 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
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- 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
- C03C4/0007—Compositions for glass with special properties for biologically-compatible glass
- C03C4/0021—Compositions for glass with special properties for biologically-compatible glass for dental use
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- 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
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
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- 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
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
- C03C8/06—Frit compositions, i.e. in a powdered or comminuted form containing halogen
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- 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
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
- C03C8/08—Frit compositions, i.e. in a powdered or comminuted form containing phosphorus
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- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/06—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction
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- C03—GLASS; MINERAL OR SLAG WOOL
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- C03C2205/00—Compositions applicable for the manufacture of vitreous enamels or glazes
- C03C2205/06—Compositions applicable for the manufacture of vitreous enamels or glazes for dental use
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- Chemical Kinetics & Catalysis (AREA)
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- Ceramic Engineering (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dispersion Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Plastic & Reconstructive Surgery (AREA)
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- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Glass Compositions (AREA)
- Dental Prosthetics (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Description
成分 重量%
Na2O 0〜3.0、特に0〜2.0
K2O 0〜5.0
Rb2O 0〜3.0、特に0〜2.0
Cs2O 0〜10.0、特に0〜8.0。
成分 重量%
SrO 0〜5.0
ZnO 0〜5.0。
成分 重量%
Al2O3 0〜8.0
Y2O3 0〜5.0
B2O3 0〜4.0
Ga2O3 0〜5.0
In2O3 0〜5.0
La2O3 0〜5.0。
成分 重量%
ZrO2 0〜7.0
TiO2 0〜5.0
SnO2 0〜5.0
GeO2 0〜14.0
CeO2 0〜2.0。
成分 重量%
V2O5 0〜1.0
Ta2O5 0〜3.0
Nb2O5 0〜3.0。
成分 重量%
WO3 0〜5.0
MoO3 0〜5.0。
成分 重量%
SiO2 53.0〜75.0
Li2O 10.0〜23.0
CaO 1.0〜13.0
MgO 1.0〜12.0
P2O5 0〜8.0
MeI 2O 0〜10.0
MeIIO 0〜10.0
MeIII 2O3 0〜10.0
MeIVO2 0〜15.0
MeV 2O5 0〜4.0
MeVIO3 0〜5.0
フッ素 0〜3.0。
ここでMeI 2O、MeIIO、MeIII 2O3、MeIVO2、MeV 2O5、及びMeVIO3は上記で指定される意味を有する。
(a)出発ガラスを細砕し、
(b)細砕出発ガラスを場合によりプレス加工して粉末圧粉体を形成し、及び
(c)細砕出発ガラス又は粉末圧粉体に500℃〜1000℃の範囲の温度、5〜120分の時間で少なくとも1回の熱処理を施す、
本発明によるケイ酸リチウム−透輝石ガラスセラミックの調製方法に関する。
組成及び結晶相
全部で、表Iで指定される組成を有する22種のガラス及びガラスセラミックを調製した。
以下の意味が表Iで適用される:
Tg ガラス転移温度、DSCにより決定される
TS及びtS 出発ガラスの溶融に使用される温度及び時間
TSinter及びtSinter 成形体(Pressling)を熱処理しそれにより結晶化させるのに使用される温度及び時間
TPress及びtPress 結晶化させた成形体をプレス加工するのに使用される温度及び時間
L*a*b値 色を特徴づけるための値
CR値 英国規格BS 5612によるガラスセラミックのコントラスト値
Li2Si2O5 二ケイ酸リチウム
Li2SiO3 メタケイ酸リチウム
CaMgSi2O6 透輝石
SiO2 石英、特に低温型石英、又はクリストバライト
Cs0.809AlSi5O12 アルミノケイ酸セシウム(Caesiumalumosilicat)
実施例1〜9、11〜19、21、及び22にしたがって調製されたガラスフリットを、Retsch GmbH、Haan、ドイツのKM100振動ミル、及びRetsch GmbH、Haan、ドイツのRM31酸化ジルコニウム振動ミルにより、粒子の数に関して90μm未満の平均粒径まで細砕した。細砕ガラス粉末を次いで単軸でプレス加工して小さい円柱状物を形成し、Programat型炉(Ivoclar Vivadent AG)において温度TSinterにてtSinterの時間で結晶化及び焼結させた。調製した試験片についてX線回折分析を行って存在する結晶相を決定し、色測定も行った。
実施例10による組成を有するガラスフリットを、Hosokawa AlpineのAFG 100対向ジェットミルにより、粒子の数に関して20μmの平均粒径まで細砕した。細砕ガラス粉末を次いで単軸でプレス加工し、Programat型炉(Ivoclar Vivadent AG)において温度TSinterにてtSinterの時間で結晶化及び焼結させた。このようにして調製した試験片について色測定及びX線回折分析を行った。生成されたケイ酸リチウム−透輝石ガラスセラミックのCR値は69.95であった。
実施例20による組成を有するガラスフリットを、ボールミルで約20時間、粒子の数に関して10μmの平均粒径まで細砕した。ボールミルは細砕チャンバーとして容積が5lの円筒形の磁器容器を備えていた。以下の磁器細砕ボールの混合物:0.9kgで直径10mm、1.8kgで直径20mm、及び0.9kgで直径30mmを細砕媒体として使用した。細砕ガラス粉末を次いで単軸でプレス加工し、Programat型炉(Ivoclar Vivadent AG)において温度TSinterにてtSinterの時間で結晶化及び焼結させた。このようにして調製した試験片について色測定及びX線回折分析を行って、結晶相を決定した。このガラスセラミック中の透輝石結晶の含量は、変化形A)及びB)にしたがって調製されたガラスセラミック中の含量よりも高かった。
粉砕の影響
実施例10による組成を有するガラスフリットを、実施例20について指定されるのと同じようにボールミルで、粒子の数に関して20μmの平均粒径まで細砕した。細砕ガラス粉末を次いで単軸でプレス加工し、Programat型炉(Ivoclar Vivadent AG)において870℃の温度で5分の時間結晶化及び焼結させた。このようにして調製された試験片について、結晶相を決定するために次いで色測定(Minolta装置)及びX線回折分析を行った。Li2Si2O5はガラスセラミックの主結晶相を形成した。透輝石及びLi3PO4は副結晶相であった。透輝石含量は実施例10における含量よりも高かった。透輝石の割合の増加はより高い度合いの不透明度をもたらし、これはCR値が69.95の代わりに90.00であったことから読み取ることができた。
ホットプレス
実施例1による組成を有するガラスを白金るつぼ中で1500℃の温度で溶融させ、次いで水中に注ぎ入れた。このようにして調製されたガラスフリットを、Retsch GmbH、Haan、ドイツのKM100振動ミルにより、粒子の数に関して90μm未満の平均粒径まで細砕した。得られたガラス粉末から単軸でプレス加工することにより粉末圧粉体を調製した。粉末圧粉体を、Programat型炉において800℃の温度にて5分の保持時間で結晶化及び緻密焼結させた。結晶化及び緻密焼結させた半加工品を、次いでホットプレスにより25分の保持時間で910℃の温度にてプレス加工した。プレス加工した試験片についてX線構造解析を行い、プレス加工した材料の熱膨張係数並びに二軸強度をISO6872にしたがって決定した。二軸強度は230MPaであった。
切削加工性を試験するために、実施例3、7、10、12、16、18、及び23によるガラス粉末を単軸でプレス加工してブロックを形成して、Programat型炉で緻密焼結させた。次いで対応するホルダーをこのようにして調製されたガラスセラミックブロックに接着し、それらをCAD/CAM細砕ユニット(Sirona InLab)で加工した。加工性を試験するために、二軸試験片をブロックから細砕して作った。
Claims (24)
- 主結晶相としてのケイ酸リチウム及びさらなる結晶相としての透輝石を含む、ケイ酸リチウム−透輝石ガラスセラミック。
- 53.0〜75.0、特に54.0〜74.0、好ましくは58.0〜70.0重量%のSiO2を含む、請求項1に記載のガラスセラミック。
- 10.0〜23.0、特に11.0〜20.0、好ましくは11.0〜16.0重量%のLi2Oを含む、請求項1又は2に記載のガラスセラミック。
- 1.0〜13.0、特に1.0〜9.0、好ましくは1.0〜6.0重量%のCaO、及び/又は1.0〜12.0、特に2.0〜9.0、好ましくは2.0〜5.0重量%のMgOを含む、請求項1から3のいずれか一項に記載のガラスセラミック。
- CaO対MgOのモル比が特に0.5〜2.0、好ましくは0.8〜1.2、特に好ましくは約1.0である、請求項4に記載のガラスセラミック。
- 0〜8.0、特に2.0〜6.0、好ましくは3.0〜6.0重量%のP2O5を含む、請求項1から5のいずれか一項に記載のガラスセラミック。
- 0〜10.0、好ましくは0.5〜8.0、特に好ましくは1.0〜5.0重量%のさらなるアルカリ金属酸化物MeI 2Oを含み、MeI 2Oが特にNa2O、K2O、Rb2O、及び/又はCs2Oから選択される、請求項1から6のいずれか一項に記載のガラスセラミック。
- 0〜10.0、好ましくは2.0〜7.0重量%の二価元素のさらなる酸化物MeIIOを含み、MeIIOが特にSrO及び/又はZnOから選択される、請求項1から7のいずれか一項に記載のガラスセラミック。
- 0〜10.0、好ましくは0〜8.0、特に好ましくは2.0〜5.0重量%の三価元素の酸化物MeIII 2O3を含み、MeIII 2O3が特にAl2O3、B2O3、Y2O3、La2O3、Ga2O3、及び/又はIn2O3から選択され、特にAl2O3である、請求項1から8のいずれか一項に記載のガラスセラミック。
- 0〜15.0、好ましくは0〜10.0重量%の四価元素のさらなる酸化物MeIVO2を含み、MeIVO2が特にZrO2、GeO2、CeO2、TiO2、及び/又はSnO2から選択される、請求項1から9のいずれか一項に記載のガラスセラミック。
- 0〜4.0、好ましくは0〜3.0重量%の五価元素のさらなる酸化物MeV 2O5を含み、MeV 2O5が特にV2O5、Ta2O5、及び/又はNb2O5から選択される、請求項1から10のいずれか一項に記載のガラスセラミック。
- 0〜5.0重量%の六価元素の酸化物MeVIO3を含み、MeVIO3が特にWO3及び/又はMoO3から選択される、請求項1から11のいずれか一項に記載のガラスセラミック。
- 以下の成分:
成分 重量%
SiO2 53.0〜75.0
Li2O 10.0〜23.0
CaO 1.0〜13.0
MgO 1.0〜12.0
P2O5 0〜8.0
MeI 2O 0〜10.0
MeIIO 0〜10.0
MeIII 2O3 0〜10.0
MeIVO2 0〜15.0
MeV 2O5 0〜4.0
MeVIO3 0〜5.0
フッ素 0〜3.0
の少なくとも1つ、好ましくはすべてを含む、請求項1から12のいずれか一項に記載のガラスセラミック。 - 10.0〜75.0重量%、好ましくは20.0〜75.0重量%のケイ酸リチウム結晶を有する、請求項1から13のいずれか一項に記載のガラスセラミック。
- 二ケイ酸リチウム及び/又はメタケイ酸リチウムの形態であるケイ酸リチウムを含む、請求項1から14のいずれか一項に記載のガラスセラミック。
- 20.0〜75.0重量%、特に25.0〜60.0重量%の二ケイ酸リチウム結晶を含む、請求項15に記載のガラスセラミック。
- 10.0〜60.0重量%、特に20.0〜50.0重量%のメタケイ酸リチウム結晶を含む、請求項15又は16に記載のガラスセラミック。
- 0.1〜50.0、特に0.1〜25.0、好ましくは0.1〜7.0、非常に特に好ましくは0.1〜5.0重量%の透輝石結晶を有する、請求項1から17のいずれか一項に記載のガラスセラミック。
- 半加工品又は歯科用修復物の形態で存在する、請求項1から18のいずれか一項に記載のガラスセラミック。
- 請求項1から13のいずれか一項に記載のガラスセラミックの成分を含み、特にメタケイ酸リチウム、二ケイ酸リチウム、及び/又は透輝石の結晶化のための核を含む、出発ガラス。
- 細砕粉末又は細砕粉末から作られた成形体の形態で存在する、請求項20に記載の出発ガラス。
- (a)請求項20に記載の出発ガラスを細砕し、
(b)前記細砕出発ガラスを場合によりプレス加工して粉末圧粉体を形成し、及び
(c)前記細砕出発ガラス又は前記粉末圧粉体に500℃〜1000℃の範囲の温度、5〜120分の時間で少なくとも1回の熱処理を施す、
請求項1から19のいずれか一項に記載のガラスセラミックの調製方法。 - 請求項1から19のいずれか一項に記載のガラスセラミック又は請求項20若しくは21に記載の出発ガラスの、歯科用材料としての、特に歯科用修復物の調製のための使用。
- 前記ガラスセラミックが、所望の歯科用修復物、特にブリッジ、インレー、アンレー、ベニア、アバットメント、部分クラウン、クラウン、又はシェルの形状を、プレス加工によって又は機械加工によって与えられる、請求項23に記載の歯科用修復物の調製における使用。
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Cited By (4)
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JP2020169118A (ja) * | 2019-04-04 | 2020-10-15 | イフォクレール ヴィヴァデント アクチェンゲゼルシャフトIvoclar Vivadent AG | 多色ガラスセラミックブランクの調製のためのプロセス |
KR20200118375A (ko) * | 2019-04-04 | 2020-10-15 | 이보클라 비바덴트 아게 | 다색 유리 세라믹 블랭크의 제조 방법 |
JP7486269B2 (ja) | 2019-04-04 | 2024-05-17 | イフォクレール ヴィヴァデント アクチェンゲゼルシャフト | 多色ガラスセラミックブランクの調製のためのプロセス |
KR102695745B1 (ko) * | 2019-04-04 | 2024-08-14 | 이보클라 비바덴트 아게 | 다색 유리 세라믹 블랭크의 제조 방법 |
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US10457589B2 (en) | 2019-10-29 |
JP6812350B2 (ja) | 2021-01-13 |
EP3050856A1 (de) | 2016-08-03 |
US20180009701A1 (en) | 2018-01-11 |
WO2016120146A1 (de) | 2016-08-04 |
EP3050856B1 (de) | 2019-05-29 |
CN107108341A (zh) | 2017-08-29 |
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