JP6145894B2 - 積層及びイオン交換により強化されたガラス積層品及びその作製方法 - Google Patents
積層及びイオン交換により強化されたガラス積層品及びその作製方法 Download PDFInfo
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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
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
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- 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
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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
- C03C3/089—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
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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
- 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
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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
- C03C4/00—Compositions for glass with special properties
- C03C4/18—Compositions for glass with special properties for ion-sensitive glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
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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
- C03C2204/00—Glasses, glazes or enamels with special properties
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
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Description
本明細書に説明されるイオン交換可能なガラスの組成の実施形態において、ガラス組成内のAl2O3濃度は、所望の低CTE及びイオン交換性能を有するガラス組成を達成するため、一般に約15モル%以下である。例えば、いくつかの実施形態において、ガラス組成内のAl2O3濃度は約9モル%以上で約14モル%以下である。いくつかの実施形態において、ガラス組成内のAl2O3濃度は約10モル%以上で約13モル%以下とすることができる。いくつかの実施形態において、Al2O3濃度は約10モル%以上で約12モル%以下とすることができる。
イオン交換工程は、交換されるべきイオン、例えばNa+に対するK+またはLi+に対するNa+、の選択によって、及び、コアガラス及びクラッドガラスの組成及び厚さに基づく、温度と時間のスケジュールのような、イオン交換パラメータの選択によって、最適化することができる。スキン層が比較的薄い積層品については特に、コアガラス及びクラッドガラスのいずれもがイオン交換可能であることが望ましいであろう。イオン交換を含む二次プロセスにより、表面圧縮及び強化深度の最終値の調整能力がもたらされる。実際、二次プロセスは最終製品に対する、表面圧縮、応力プロファイル、強化深度及び中心部張力にかかわる、設計ウインドウを広げる。
11,21 コアガラス層
12,22 クラッドガラス層
18 クラッドガラス外表面近傍領域
24 埋込/内部領域
26 引張応力領域
Claims (14)
- 強化積層ガラス構造を作製するためのプロセスにおいて、
コアガラス板を形成するため、第1の熱膨張係数(CTE)を有するコアガラスをドロー成形する工程、
クラッドガラス板を形成するため、第1のCTEより低く且つ65×10−7/℃以下である第2のCTEを有するイオン交換可能なアルカリアルミノケイ酸クラッドガラスをドロー成形する工程、
積層ガラス板を形成するため、前記コアガラス及び前記クラッドガラスの内の少なくとも一方の軟化点以上の温度において前記コアガラス板を前記クラッドガラス板に積層する工程、
前記積層ガラス板を冷却して、前記コアガラス板を引張応力の状態におき、前記クラッドガラス板を圧縮応力の状態におく工程、及び
前記積層する工程及び前記冷却する工程によって前記クラッドガラスに生成された前記圧縮応力に加えて、前記クラッドガラスの外表面領域に圧縮応力の層を形成するため、前記積層ガラス板にイオン交換プロセスを実施する工程、
を含み、
前記イオン交換可能なアルカリアルミノケイ酸クラッドガラスは、
9モル%から14モル%のAl 2 O 3 と、
0モル%から11モル%のB 2 O 3 と、
5モル%から10モル%未満のアルカリ酸化物R 2 Oとを含み、Rは、Li、NaおよびKの内の少なくとも1つであること、
を特徴とするプロセス。 - 前記コアガラス層の前記CTEより少なくとも10×10−7/℃は低いCTEを前記クラッドガラス層が有することを特徴とする請求項1記載のプロセス。
- 前記クラッドガラスをドロー成形する前記工程が、2枚のイオン交換可能なクラッドガラス板をドロー成形する工程を含み、
前記積層する工程が、前記クラッドガラス板の第1を前記コアガラスの第1の表面に積層する工程及び前記クラッドガラス板の第2を前記コアガラス板の第2の表面に積層する工程を含む、
ことを特徴とする請求項1または2に記載のプロセス。 - 前記コアガラスが、イオン交換可能であって、大半径陽イオンを含有し、
前記コアガラス内の前記大半径陽イオンを前記クラッドガラス内のより小さいイオンと交換して、前記クラッドガラスの内表面領域内に高められた圧縮応力の領域を形成する工程、
をさらに含み、
前記大半径陽イオンを前記クラッドガラス内のより小さいイオンと交換する前記工程が、前記積層する工程、前記イオン交換工程及び別途の加熱工程のうちの1つの間に実施される、
ことを特徴とする請求項1から3のいずれか1項に記載のプロセス。 - 前記クラッドガラスを成形する前記ドロー工程が、中空クラッドガラス管を形成するため、環形オリフィスを用いて前記クラッドガラスを形成する工程を含み、
前記コアガラスを成形する前記ドロー工程が、コアガラス円柱を形成するため、オリフィスを用いて前記コアガラスを形成する工程を含む、
ことを特徴とする請求項1から3のいずれか1項に記載のプロセス。 - 前記クラッドガラスを成形する前記ドロー工程が、第1の環形オリフィスを用いて第1のクラッドガラス管を形成する工程及び第2の環形オリフィスを用いて第2のクラッドガラス管を形成する工程を含み、
前記コアガラスを成形する前記ドロー工程が、第3の環形オリフィスを用いてコアガラス管を形成する工程を含み、
前記第1の環形オリフィス及び前記第1のクラッドガラス管は前記第3の環形オリフィス及び前記コアガラス管の外径に等しい内径を有し、前記第2の環形オリフィス及び前記第2のクラッドガラス管は前記第3の環形オリフィス及び前記コアガラス管の内径に等しい外径を有し、
前記積層する工程が、前記第1のクラッドガラス管を前記コアガラス管の外周表面に積層し、前記第2のクラッドガラス管を前記コアガラス管の内周表面に積層する、
ことを特徴とする請求項1から3のいずれか1項に記載のプロセス。 - 強化積層ガラス構造を作製するためのプロセスにおいて、
コアガラス板を形成するため、第1の熱膨張係数(CTE)を有し、イオン交換可能であり、大半径陽イオンを含有するコアガラスをドロー成形する工程、
クラッドガラス板を形成するため、第1のCTEより低く且つ65×10 −7 /℃以下である第2のCTEを有するイオン交換可能なアルカリアルミノケイ酸クラッドガラスをドロー成形する工程、
積層ガラス板を形成するため、前記コアガラス及び前記クラッドガラスの内の少なくとも一方の軟化点以上の温度において前記コアガラス板を前記クラッドガラス板に積層する工程、
前記積層ガラス板を冷却して、前記コアガラス板を引張応力の状態におき、前記クラッドガラス板を圧縮応力の状態におく工程、及び
前記積層する工程及び前記冷却する工程によって前記クラッドガラスに生成された前記圧縮応力に加えて、前記クラッドガラスの外表面領域に圧縮応力の層を形成するため、前記積層ガラス板にイオン交換プロセスを実施する工程、
前記コアガラス内の前記大半径陽イオンを前記クラッドガラス内のより小さいイオンと交換して、前記クラッドガラスの内表面領域内に高められた圧縮応力の領域を形成する工程、
を含み、
前記大半径陽イオンを前記クラッドガラス内のより小さいイオンと交換する前記工程が、前記積層する工程の間、または前記イオン交換工程の間、または別途の加熱工程を設けてその間、に実施されることを特徴とするプロセス。 - 強化積層ガラス構造を作製するためのプロセスにおいて、
コアガラス板を形成するため、第1の熱膨張係数(CTE)を有するコアガラスをドロー成形する工程、
クラッドガラス板を形成するため、第1のCTEより低く且つ65×10 −7 /℃以下である第2のCTEを有するイオン交換可能なアルカリアルミノケイ酸クラッドガラスをドロー成形する工程、
積層ガラス板を形成するため、前記コアガラス及び前記クラッドガラスの内の少なくとも一方の軟化点以上の温度において前記コアガラス板を前記クラッドガラス板に積層する工程、
前記積層ガラス板を冷却して、前記コアガラス板を引張応力の状態におき、前記クラッドガラス板を圧縮応力の状態におく工程、及び
前記積層する工程及び前記冷却する工程によって前記クラッドガラスに生成された前記圧縮応力に加えて、前記クラッドガラスの外表面領域に圧縮応力の層を形成するため、前記積層ガラス板にイオン交換プロセスを実施する工程、
を含み、
前記クラッドガラスを成形する前記ドロー工程が、中空クラッドガラス管を形成するため、環形オリフィスを用いて前記クラッドガラスを形成する工程を含み、
前記コアガラスを成形する前記ドロー工程が、コアガラス円柱を形成するため、オリフィスを用いて前記コアガラスを形成する工程を含む、
ことを特徴とする、プロセス。 - 強化積層ガラス構造において、
第1の熱膨張係数(CTE)を有するコアガラス層、及び
前記コアガラス層に積層された、該コアガラス層の前記CTEより低く且つ65×10−7/℃以下であるCTEを有する少なくとも1つのイオン交換可能なアルカリアルミノケイ酸クラッドガラス層、
を有し、
前記クラッドガラス層が圧縮応力の状態にあり、前記クラッドガラス層の外表面領域が前記クラッドガラス層の残余領域に比較して高められた圧縮応力の状態にあり、
前記イオン交換可能なアルカリアルミノケイ酸クラッドガラス層は、
9モル%から14モル%のAl 2 O 3 と、
0モル%から11モル%のB 2 O 3 と、
5モル%から10モル%未満のアルカリ酸化物R 2 Oとを含み、Rは、Li、NaおよびKの内の少なくとも1つであること、
を特徴とする積層ガラス構造。 - 前記コアガラス層の前記CTEより少なくとも10×10−7/℃は低いCTEを前記クラッドガラス層が有することを特徴とする請求項9に記載の積層ガラス構造。
- 前記少なくとも1つのイオン交換可能なクラッドガラス層が前記コアガラス層の前記CTEより低いCTEを有する2つのイオン交換可能なクラッドガラス層を含み、前記クラッドガラス層の第1が前記コアガラス層の第1の表面に積層され、前記クラッドガラス層の第2が前記コアガラス層の第2の表面に積層されていることを特徴とする請求項9または10に記載の積層ガラス構造。
- 前記コアガラス層が中実コアガラス円柱を含み、
前記クラッドガラス層が前記コアガラス円柱の周面に積層された中空クラッドガラス管を含む、
ことを特徴とする請求項9または10に記載の積層ガラス構造。 - 前記コアガラス層が内周面及び外周面を有する中空コアガラス管を含み、
前記少なくとも1つのイオン交換可能なクラッドガラス層が、前記コアガラス管の前記外周面に積層された第1の中空クラッドガラス管及び前記コアガラス管の前記内周面に積層された第2の中空クラッドガラス管を含む、
ことを特徴とする請求項9または10に記載の積層ガラス構造。 - 強化積層ガラス構造において、
第1の熱膨張係数(CTE)を有するコアガラス層、及び
前記コアガラス層に積層された、該コアガラス層の前記CTEより低く且つ65×10 −7 /℃以下であるCTEを有する少なくとも1つのイオン交換可能なアルカリアルミノケイ酸クラッドガラス層、
を有し、
前記クラッドガラス層が圧縮応力の状態にあり、前記クラッドガラス層の外表面領域が前記クラッドガラス層の残余領域に比較して高められた圧縮応力の状態にあり、
前記コアガラス層が中実コアガラス円柱を含み、
前記クラッドガラス層が前記コアガラス円柱の周面に積層された中空クラッドガラス管を含む、
ことを特徴とする積層ガラス構造。
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CN103702952A (zh) | 2014-04-02 |
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EP2736855A1 (en) | 2014-06-04 |
US9522836B2 (en) | 2016-12-20 |
KR20140056291A (ko) | 2014-05-09 |
CN103702952B (zh) | 2017-08-25 |
EP2736855B1 (en) | 2018-06-27 |
TW201304951A (zh) | 2013-02-01 |
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