Abstract:
PROBLEM TO BE SOLVED: To provide a sealing material resistant to hydrogen gas permeation at a sealing temperature in the intermediate temperature range of 600-900°C.SOLUTION: The sealing material comprises a glass frit in mol% of: 20-30% of Si; 0-15% of SrO; 0-8% of KO; 0-6% of MgO; 20-30% of CaO; 0-10% of AlO; 35-45% of BO; wherein the total amount of alkali is less than 10 mol%.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a hermetically sealed glass package using a frit that is antimony-free glass.SOLUTION: A hermetically sealed glass package, such as an OLED display device 10, is manufactured by providing a first glass substrate plate 12 and a second glass substrate plate 18 and depositing an antimony-free frit 16 onto the first substrate plate 12. OLEDs 14 may be deposited on the second glass substrate plate 18. An irradiation source 22 (e.g., laser, infrared light) is then used to heat the frit 16 which melts and forms a hermetic seal 20 that connects the first glass substrate plate 12 to the second glass substrate plate 18 and also protects the OLEDs 14. The antimony-free glass has excellent water resistance, good flow, low glass transition temperature and low coefficient of thermal expansion.
Abstract:
Described herein are methods for making microfluidic devices comprising glass or glass-containing materials, wherein the methods have decreased cost and/or improved dimensional properties over similar formed glass articles produced using current techniques.
Abstract:
Lead-free, tin phosphate glasses contain 25-50 mole percent P2O5, 30-70% SnO, 0-15% ZnO, the mole ratio of SnO:ZnO being greater than 5:1, and an effective amount up to 25% total of at least one oxide in the indicated proportion selected from the group consisting of up to 25% R2O, wherein R2O consists of 0-25% Li2O, 0-25% Na2O, and 0-25% K2O, up to 20% B2O3, up to 5% Al2O3, up to 5% SiO2, and up to 5% WO3. The classes are particularly useful as sealing glass frits in sealing material to join component parts in electrical and electronic devices. The sealing glass material may contain mill additions to reduce the effective coefficient of thermal expansion in a seal, as well as a strength reinforcing additive having a coefficient of thermal expansion preferably below 120 .times. 10-7/.degree.C .
Abstract:
A solid oxide fuel cell device incorporates a sealing material resistant to hydrogen gas permeation at a sealing temperature in the intermediate temperature range of 600° C.-900° C., the seal having a CTE in the 100x10 -7 /° C. to 120x10 -7 /° C., wherein the sealing material comprises in weight %, of: (i) a 80 wt % to 100 wt % glass frit, the glass frit itself having a composition comprising in mole percent of: SiO 2 15-65; Li 2 O 0-5; Na 2 O 0-5; K 2 O 0-10; MgO 0-5; CaO 0-32; Al 2 O 3 0-10; B 2 O 3 0-50; SrO 0 to 25, wherein the total amount of alkalis is less than 10 mole %; and (ii) zirconia or leucite addition 0 wt % to 30 wt.
Abstract:
Described herein are methods for making microfluidic devices comprising glass or glass-containing materials, wherein the methods have decreased cost and/or improved dimensional properties over similar formed glass articles produced using current techniques.
Abstract:
A solid oxide fuel cell device incorporates a sealing material resistant to hydrogen gas permeation at a sealing temperature in the intermediate temperature range of 600° C.-900° C., the seal having a CTE in the 100x10 -7 /° C. to 120x10 -7 /° C., wherein the sealing material comprises in weight %, of: (i) a 80 wt % to 100 wt % glass frit, the glass frit itself having a composition comprising in mole percent of: SiO 2 15-65; Li 2 O 0-5; Na 2 O 0-5; K 2 O 0-10; MgO 0-5; CaO 0-32; Al 2 O 3 0-10; B 2 O 3 0-50; SrO 0 to 25, wherein the total amount of alkalis is less than 10 mole %; and (ii) zirconia or leucite addition 0 wt % to 30 wt.
Abstract:
A solid oxide fuel cell device incorporates a sealing material resistant to hydrogen gas permeation at a sealing temperature in the intermediate temperature range of 600° C.-900° C., the seal having a CTE in the 100x10 -7 /° C. to 120x10 -7 /° C., wherein the sealing material comprises in weight %, of: (i) a 80 wt % to 100 wt % glass frit, the glass frit itself having a composition comprising in mole percent of: SiO 2 15-65; Li 2 O 0-5; Na 2 O 0-5; K 2 O 0-10; MgO 0-5; CaO 0-32; Al 2 O 3 0-10; B 2 O 3 0-50; SrO 0 to 25, wherein the total amount of alkalis is less than 10 mole %; and (ii) zirconia or leucite addition 0 wt % to 30 wt.
Abstract:
Lead-free, tin phosphate glasses contain 25-50 mole percent P2O5, 30-70% SnO, 0-15% ZnO, the mole ratio of SnO:ZnO being greater than 5:1, and an effective amount up to 25% total of at least one oxide in the indicated proportion selected from the group consisting of up to 25% R2O, wherein R2O consists of 0-25% Li2O, 0-25% Na2O, and 0-25% K2O, up to 20% B2O3, up to 5% Al2O3, up to 5% SiO2, and up to 5% WO3. The glasses are particularly useful as sealing glass frits in sealing material to join component parts in electrical and electronic devices. The sealing glass material may contain mill additions to reduce the effective coefficient of thermal expansion in a seal, as well as a strength reinforcing additive having a coefficient of thermal expansion preferably below 120 x 10-7/.degree.C.
Abstract:
A sealing method and sealed assemblies incorporating novel devitrifiable sealing frits based on thermally crystallizable alkaline earth aluminosilicate glasses, are disclosed. The frits exhibit improved compatibility with refractory composites employed for the fabrication of high temperature fiber-reinforced glass-ceramic assemblies and can be cured at temperatures below those needed to cure prior art sealing compositions to provide strong seals wherein refractory crystal phases selected from the group consisting of anorthite (CaO?Al2O3?2SiO2), celsian (BaO?Al2O3?2SiO2), and sanidine, orthoclase or other potash feldspar (K2O?Al2O3?6SiO2) polymorphs constitute the principal phases.