CN116096688A - 无机组成物产品 - Google Patents
无机组成物产品 Download PDFInfo
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- CN116096688A CN116096688A CN202180054454.5A CN202180054454A CN116096688A CN 116096688 A CN116096688 A CN 116096688A CN 202180054454 A CN202180054454 A CN 202180054454A CN 116096688 A CN116096688 A CN 116096688A
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- 239000000203 mixture Substances 0.000 title claims abstract description 55
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 17
- 239000010456 wollastonite Substances 0.000 claims abstract description 17
- 239000013078 crystal Substances 0.000 claims abstract description 16
- 238000004040 coloring Methods 0.000 claims abstract description 9
- 239000006104 solid solution Substances 0.000 claims abstract description 8
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 8
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- 239000011521 glass Substances 0.000 description 36
- 238000010438 heat treatment Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 238000003426 chemical strengthening reaction Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 229910010272 inorganic material Inorganic materials 0.000 description 5
- 239000011147 inorganic material Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000006911 nucleation Effects 0.000 description 4
- 238000010899 nucleation Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000006059 cover glass Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000004031 devitrification Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 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
- 229910020068 MgAl Inorganic materials 0.000 description 1
- 229910017682 MgTi Inorganic materials 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008395 clarifying agent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 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 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000006025 fining agent Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- -1 metaphosphoric acid compound Chemical class 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
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
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- 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
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- 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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- 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
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- 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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- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
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Abstract
本发明可提供一种透明性高且硬的无机组成物产品。本发明为一种无机组成物产品，含有选自α‑白硅石及α‑白硅石固溶体中的一种以上作为主结晶相，厚度10mm时的着色度λ80为330nm至580nm，维氏硬度为620以上。
Description
技术领域
本发明涉及一种无机组成物产品。
背景技术
各种的无机材料，作为用以对智能型手机、平板型PC(Personal Computer；个人计算机)等的可携式电子设备的显示器进行保护的保护玻璃(cover glass)或框体，再者，作为用以对车载用的光学设备的透镜进行保护的防护器(protector)或内装用的挡板(bezel)和控制面板(console panel)、触控面板原材料、智能型钥匙等的使用而受到期待。并且，这些设备需要在严酷的环境下使用，对于具有更高硬度的无机材料的需求正逐渐增强。进而，根据用途需要高透明性或着色度低。
作为提高了玻璃的强度的玻璃，有结晶化玻璃。结晶化玻璃，是使结晶析出于玻璃内部而成，因机械强度比非晶形玻璃更为优秀而被熟知。另外，作为提高结晶化玻璃的强度的方法，已知有化学强化。
专利文献1中，公开了一种数据记录介质用无机组成物基板的材料组成。还记载了专利文献1所述的α-白硅石系无机组成物产品能够进行化学强化，能够用作强度高的材料基板。但是，关于以硬盘用基板为代表的数据记录介质用结晶化玻璃，并未设想在严酷的环境下使用，也没有透明性的需求。
现有技术文献
专利文献
专利文献1：日本特开2008-254984号公报
发明内容
发明要解决的技术问题
本发明的目的在于提供一种透明性高且硬的无机组成物产品。
解决技术问题的方法
本发明提供以下产品。
(构成1)
一种无机组成物产品，含有选自α-白硅石及α-白硅石固溶体中的一种以上作为主结晶相，厚度10mm时的着色度λ80为330nm至580nm，维氏硬度为620以上。
(构成2)
如构成1所述的无机组成物产品，其中，
以氧化物换算的质量％计：
SiO2成分的含量为50.0％至75.0％；
Li2O成分的含量为3.0％至10.0％；
Al2O3成分的含量为5.0％以上至小于15.0％；
B2O3成分的含量为0％至10.0％；
ZrO2成分的含量为大于0％至10.0％以下。
(构成3)
如构成1或构成2所述的无机组成物产品，其中，
以氧化物换算的质量％计：
Al2O3成分与ZrO2成分的合计含量为9.5％以上。
(构成4)
如构成1至构成3中任一项所述的无机组成物产品，其中，
以氧化物换算的质量％计：
K2O成分的含量为0％至5.0％；
P2O5成分的含量为0％至10.0％。
(构成5)
如构成1至构成4中任一项所述的无机组成物产品，其中，
以氧化物换算的质量％计：
Na2O成分的含量为0％至4.0％；
MgO成分的含量为0％至4.0％；
CaO成分的含量为0％至4.0％；
SrO成分的含量为0％至4.0％；
BaO成分的含量为0％至5.0％；
ZnO成分的含量为0％至10.0％；
Sb2O3成分的含量为0％至3.0％。
(构成6)
如构成1至构成5中任一项所述的无机组成物产品，其中，
以氧化物换算的质量％计：
Nb2O5成分的含量为0％至5.0％；
Ta2O5成分的含量为0％至6.0％；
TiO2成分的含量为0％以上至小于1.0％。
(构成7)
如构成1至构成6中任一项所述的无机组成物产品，其中，维氏硬度为640以上。
发明的效果
根据本发明，能够提供一种透明性高且硬的无机组成物产品。
本发明的无机组成物产品，活用具有高硬度与透明性的无机材料这点而能够使用于设备的保护部件等。可用作智能型手机的保护玻璃或框体、平板型PC或穿戴式终端等的可携式电子设备的部件，或用作在汽车或飞机等的运输机体所使用的保护防护器或抬头显示器用基板等的部件。再者，可使用于其他的电子设备或机械器具类、建筑部件、太阳能板用部件、投影机用部件、眼镜或钟表用的保护玻璃(挡风板)等。
具体实施方式
以下是针对本发明的无机组成物产品的实施方式及实施例详细地进行说明，但本发明并不限定于以下的实施方式及实施例，能够在本发明的目的的范围内加上适当变更来实施。
本发明中所谓的“无机组成物产品”，是由玻璃、结晶化玻璃、陶瓷、或它们的复合材料等无机组成物材料所构成。本发明的产品包含例如将这些无机材料通过加工或化学反应所为的合成等而成型为所需的形状的产品。再者，也包括通过将无机材料粉碎后进行加压所获得的受压粉体或通过将受压粉体进行烧结所获得的烧结体等。此处所获得的产品的形状并不受平滑度、曲率、大小等所限定。例如为板状的基板，或为具有曲率的成形体，或为具有复杂的形状的立体结构体等。
本发明的无机组成物产品，含有选自α-白硅石及α-白硅石固溶体中的一种以上作为主结晶相。若具有这些结晶相，则机械强度会变高。
此处本说明书之中所谓的“主结晶相”，对应于根据X光衍射图形的波峰所判定的在结晶化玻璃中含有最多的结晶相。
本发明的无机组成物产品，厚度10mm时的着色度λ80为330nm至580nm，更优选为330nm至550nm，还更优选为330nm至530nm，进一步优选为330nm至500nm。着色度λ80的波长越小则着色度越少，透明性高。
本发明的无机组成物产品，厚度10mm时的着色度λ5为370nm以下，更优选为360nm以下，进一步优选为350nm以下。着色度λ5的波长越小则着色度越少，透明性高。
本发明的无机组成物产品，维氏硬度为620以上，更优选为630以上，进一步优选为640以上。
于以下描述适于构成无机组成物产品的组成范围。在本说明书中，各成分的含量除非是另有说明的情况，否则全是以氧化物换算的质量％来表示。此处，所谓的“氧化物换算”，是指假定结晶化玻璃组成成分全部被分解而变化成氧化物时，将该氧化物的总质量设为100质量％时，以质量％来表示结晶化玻璃中所含有的各成分的氧化物的量。本说明书中，A％至B％是表示A％以上至B％以下。
本发明的无机组成物产品，优选地，
以氧化物换算的质量％计：
SiO2成分的含量为50.0％至75.0％；
Li2O成分的含量为3.0％至10.0％；
Al2O3成分的含量为5.0％以上至小于15.0％；
B2O3成分的含量为0％至10.0％；
ZrO2成分的含量为大于0％至10.0％以下。
通过此组成，容易形成选自α-白硅石及α-白硅石固溶体中的一种以上的结晶相。
SiO2成分，是用以构成选自α-白硅石及α-白硅石固溶体中的一种以上所需要的必要成分。SiO2成分的含量若大于75.0％，则招致粘性过度上升或熔解性变差，再者，小于50.0％则有耐失透性变得易于变差之虞。
优选将上限设为75.0％以下、74.0％以下、73.0％以下、72.0％以下、或70.0％以下。又优选将下限设为50.0％以上、55.0％以上、58.0％以上、或60.0％以上。
Li2O成分是使原始玻璃(raw glass)的熔融性提升的成分，但该Li2O成分的量小于3.0％，则得不到上述效果而原始玻璃的熔融变得困难，再者，若大于10.0％则二硅酸锂结晶的生成会增加。并且，Li2O成分是与化学强化相关的成分。
优选将下限设为3.0％以上、3.5％以上、4.0％以上、4.5％以上、5.0％以上、或5.5％以上。又优选将上限设为10.0％以下、9.0％以下、8.5％以下、或8.0％以下。
Al2O3成分，是适于使无机组成物产品的机械强度提升的成分。Al2O3成分的含量在15.0％以上则熔解性或耐失透性会变差，再者，小于5.0％则有使机械强度提升的效果变差之虞。
优选将上限设为小于15.0％、14.5％以下、14.0％以下、13.5％以下、或13.0％以下。优选将下限设为5.0％以上、5.5％以上、5.8％以上、6.0％以上、或6.5％以上。
B2O3成分，是适于使无机组成物产品的玻璃转移温度降低的成分，但若该B2O3成分的量大于10.0％，则有化学耐久性变得易于降低之虞。
优选将上限设为10.0％以下、8.0％以下、7.0％以下、5.0％以下、或4.0％以下。又能够将下限设为0％、0.001％以上、0.01％以上、0.05％以上、0.10％以上、或0.30％以上。
ZrO2成分是能使机械强度提升的成分，但若该ZrO2成分的量大于10.0％，则有招致熔解性的变差之虞。
优选将上限设为10.0％以下、9.0％以下、8.5％以下、或8.0％以下。又能够将下限设为大于0％、1.0％以上、1.5％以上、或2.0％以上。
若作为Al2O3成分与ZrO2成分的含量之和的[Al2O3+ZrO2]多，则在强化时表面的压缩应力会变大。优选将[Al2O3+ZrO2]的下限设为9.5％以上、10.0％以上、11.0％以上、12.0％以上、或13.0％以上。
另一方面，若过量含有Al2O3成分与ZrO2成分，则有熔解性容易变差之虞。因此，[Al2O3+ZrO2]的上限，优选设为22.0％以下、21.0％以下、20.0％以下、或19.0％以下。
能够将SiO2成分、Li2O成分、Al2O3成分、B2O3成分及ZrO2成分的合计含量的下限优选设为75.0％以上、80.0％以上、83.0％以上、或85.0％以上。
P2O5成分是任意成分，能够添加用作玻璃的结晶成核剂，但若该P2O5成分的量大于10.0％，则有变得容易发生耐失透性的变差或玻璃的相分离之虞。
优选将上限设为10.0％以下、8.0％以下、6.0％以下、或5.0％以下、或4.0％以下。又优选能够将下限设为0％以上、0.5％以上、1.0％以上、或1.5％以上。
K2O成分是与涉及化学强化相关的任意成分。优选能够将下限设为0％以上、0.1％以上、0.3％以上、或0.5％以上。
再者若过量含有K2O成分则有结晶变得难以析出的情况。因而，优选能够将上限设为5.0％以下、4.0％以下、3.5％以下、或3.0％以下。
Na2O成分是与化学强化相关的任意成分。若过量含有则有变得难以获得所需的结晶相的情况。优选能够将上限设为4.0％以下、3.5％以下、更优选为3.0％以下、进而优选为2.5％以下。
MgO成分、CaO成分、SrO成分、BaO成分、ZnO成分是使低温熔融性提升的任意成分，能够在不损及本发明的效果的范围内含有。因此，MgO成分，优选能够将上限设为4.0％以下、3.5％以下、3.0％以下、或2.7％以下。再者，MgO成分，优选能够将下限设为0％以上、大于0％、0.3％以上、0.4％以上。CaO成分，优选能够将上限设为4.0％以下、3.0％以下、2.5％以下、或2.0％以下。SrO成分，优选能够将上限设为4.0％以下、3.0％以下、2.5％以下、或2.0％以下。BaO成分，优选能够将上限设为5.0％以下、4.0％以下、3.0％以下、2.5％以下、或2.0％以下。ZnO成分，优选能够将上限设为10.0％以下、9.0％以下、8.5％以下、8.0％以下、或7.5％以下。再者，ZnO成分，优选能够将下限设为0％以上、大于0％、0.5％以上、1.0％以上。
无机组成物产品在不损及本发明的效果的范围内，可分别含有Nb2O5成分、Ta2O5成分、TiO2成分，也可不含。Nb2O5成分是任意成分，在含有大于0％的情况下，可使结晶化玻璃的机械强度提高。优选能够将上限设为5.0％以下、4.0％以下、3.5％以下、或3.0％以下。Ta2O5成分是任意成分，在含有大于0％的情况下，可使结晶化玻璃的机械强度提高。优选能够将上限设为6.0％以下、5.5％以下、5.0％以下、或4.0％以下。TiO2成分是任意成分，在含有大于0％的情况下，可使结晶化玻璃的化学耐久性提升。优选能够将上限设为小于1.0％、0.8％以下、0.5％以下、或0.1％以下。
另外，无机组成物产品，在不损及本发明的效果的范围内，可分别含有La2O3成分、Y2O3成分、Gd2O3成分、WO3成分、TeO2成分、Bi2O3成分，也可不含。调配量能够分别设为0％至2.0％、0％至小于2.0％、或0％至1.0％。
此外在无机组成物产品中，在不损及本发明的无机组成物产品的特性的范围内，可含有上述所未提及的其他成分，也可不含。例如Yb、Lu、V、Cr、Mn、Fe、Co、Ni、Cu、Ag及Mo等金属成分(包含这些金属成分的金属氧化物)等。
作为玻璃的澄清剂，可含有Sb2O3成分。另一方面，若过量含有Sb2O3成分，则有可见光区域的短波长区域中的穿透率变差之虞。因此，优选能够将上限设为3.0％以下，更优选为1.0％以下，还更优选为0.6％以下。
再者作为玻璃的澄清剂，除了Sb2O3成分之外，可含有SnO2成分、CeO2成分、As2O3成分、及选自F、NOx、SOx的族群中的一种或两种以上，也可不含。其中，澄清剂的含量，优选能够将上限设为3.0％以下，更优选为1.0％以下，最优选为0.6％以下。
另一方面，Pb、Th、Tl、Os、Be、Cl及Se的各成分，由于近年作为有害的化学物质而有使用受到节制的倾向，故优选为实质上不含有这些成分。
无机组成物产品能够利用以下的方法来制作。亦即，以各成分成为规定的含量的范围内的方式将原料均匀地混合，进行熔解成形来制造原材(original material)产品。其次将该原材产品进行结晶化来制作本发明的无机组成物产品。
用以结晶析出的热处理，能以1阶段也能以2阶段的温度进行热处理。
在2阶段热处理，首先以第1温度进行热处理，由此进行晶核形成步骤，在此晶核形成步骤之后，以比晶核形成步骤更高的第2温度进行热处理，由此进行结晶成长步骤。
2阶段热处理的第1温度优选能够设为450℃至750℃，更优选为500℃至720℃，进一步优选为550℃至680℃。在第1温度下的保持时间优选为30分钟至2000分钟，更优选为180分钟至1440分钟。
2阶段热处理的第2温度优选能够设为550℃至850℃，更优选为600℃至800℃。在第2温度下的保持时间优选为30分钟至600分钟，更优选为60分钟至400分钟。
在1阶段热处理中，以1阶段的温度连续地进行晶核形成步骤与结晶成长步骤。通常，升温至预定的热处理温度，在到达该热处理温度后保持该温度一定时间，之后进行降温。
以1阶段的温度进行热处理的情况，热处理的温度优选为600℃至800℃，更优选为630℃至770℃。另外，在热处理的温度的保持时间优选为30分钟至500分钟，更优选为60分钟至400分钟。
能够将所获得的无机组成物产品加以强化而在表面形成压缩应力层。作为强化方法，例如有使存在于无机组成物产品的表面层的碱性成分与离子半径比该碱性成分更大的碱性成分进行交换反应，在表面层形成压缩应力层的化学强化法。另外，有将无机组成物产品进行加热，之后进行骤冷的热强化法；在无机组成物产品的表面层注入离子的离子注入法。
化学强化法例如能够利用如下述的步骤来实施。使无机组成物产品接触或浸渍于含有钾或钠的盐(例如硝酸钾(KNO3)、硝酸钠(NaNO3)或是该盐的混合盐或者复合盐)的熔融盐。接触或浸渍于此熔融盐的处理(化学强化处理)能以1阶段亦能以2阶段来处理。
关于热强化法并没有特别限定，例如通过将无机组成物产品加热至300℃至600℃后，实施水冷和/或空气冷等的急速冷却，通过玻璃的表面与内部的温差而能够形成压缩应力层。另外，通过与上述化学处理法组合，还能够更有效地形成压缩应力层。
关于离子注入法，没有特别限定，例如使任意的离子以不会破坏表面的程度的加速能量、加速电压撞击到无机组成物产品表面，由此将离子注入到表面。之后视需要进行热处理，从而与其他方法同样地能够在表面形成压缩应力层。
实施例
实施例1至实施例38、比较例1
作为结晶化玻璃的各成分的原料，选择分别对应的氧化物、氢氧化物、碳酸盐、硝酸盐、氟化物、氯化物、偏磷酸化合物等原料，将这些原料以成为表1至表4所述的组成的方式进行称重并均匀地混合。
其次，将已混合的原料投入铂坩埚，依照玻璃组成的熔融难易度以电炉于1300℃至1600℃进行熔融2小时至24小时。之后，搅拌经熔融的玻璃进行均质化后将温度降至1000℃至1450℃后浇铸至模具，进行缓冷制作成原始玻璃。将获得的原始玻璃以表1至表4所示的结晶化条件进行加热来制作成结晶化玻璃。
实施例1至实施例38以及比较例1的结晶化玻璃的结晶相，是根据使用了X光衍射分析装置(Bruker公司制造，D8 Discover)的X光衍射图形中所呈现的波峰的角度来判断的。实施例1至实施例38的结晶化玻璃，由于全部在与α-白硅石和/或α-白硅石固溶体的波峰图案对应的位置见到主波峰(强度最高且波峰面积最大的波峰)，而判别为全部是α-白硅石和/或α-白硅石固溶体析出作为主结晶相。比较例1的结晶化玻璃，没有看到α-白硅石及α-白硅石固溶体的波峰。在比较例1观察到MgAl2O4、MgTi2O4的结晶相。
将制作好的结晶化玻璃进行切断及磨削，进而以厚度成为10mm的方式进行对向平面平行研磨，来获得结晶化玻璃基板。
针对结晶化玻璃实施以下的评价。将结果显示于表1至表4。
(1)维氏硬度
维氏硬度是以下述方式得到的值来表示：使用相对面夹角为136°的钻石四角锥压头在试验面造出金字塔形状的凹痕，将造出凹痕时的负荷除以由凹痕的长度所算出的表面积(mm2)而得。使用岛津制作所股份有限公司的微小维氏硬度计(Micro-Vickers HardnessTester)HMV-G21D，以试验负荷100gf、保持时间10秒钟来测定。
(2)着色度
利用分光亮度计(日立先端科技(Hitachi High-Technologies)制造，U-4000型)来测定厚度10mm时包含反射损失的光线穿透率。求出穿透率成为5％时的波长(λ5)与穿透率成为80％时的波长(λ80)。
【表1】
【表2】
【表3】
【表4】
Claims (7)
1.一种无机组成物产品，含有选自α-白硅石及α-白硅石固溶体中的一种以上作为主结晶相，厚度10mm时的着色度λ80为330nm至580nm，维氏硬度为620以上。
2.如权利要求1所述的无机组成物产品，其中，
以氧化物换算的质量%计：
SiO2成分的含量为50.0%至75.0%；
Li2O成分的含量为3.0%至10.0%；
Al2O3成分的含量为5.0%以上至小于15.0%；
B2O3成分的含量为0%至10.0%；
ZrO2成分的含量为大于0%至10.0%以下。
3.如权利要求1或2所述的无机组成物产品，其中，
以氧化物换算的质量%计，
Al2O3成分与ZrO2成分的合计含量为9.5%以上。
4.如权利要求1至3中任一项所述的无机组成物产品，其中，
以氧化物换算的质量%计：
K2O成分的含量为0%至5.0%；
P2O5成分的含量为0%至10.0%。
5.如权利要求1至4中任一项所述的无机组成物产品，其中，
以氧化物换算的质量%计：
Na2O成分的含量为0%至4.0%；
MgO成分的含量为0%至4.0%；
CaO成分的含量为0%至4.0%；
SrO成分的含量为0%至4.0%；
BaO成分的含量为0%至5.0%；
ZnO成分的含量为0%至10.0%；
Sb2O3成分的含量为0%至3.0%。
6.如权利要求1至5中任一项所述的无机组成物产品，其中，
以氧化物换算的质量%计：
Nb2O5成分的含量为0%至5.0%；
Ta2O5成分的含量为0%至6.0%；
TiO2成分的含量为0%以上至小于1.0%。
7.如权利要求1至6中任一项所述的无机组成物产品，其中，维氏硬度为640以上。
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