Alumino-silicate glass having high thermal stability and low processing temperature
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C03C-003/087
C03C-004/00
출원번호
US-0408808
(2012-02-29)
등록번호
US-8828897
(2014-09-09)
우선권정보
DE-10 2009 042 796 (2009-09-25)
발명자
/ 주소
Fechner, Jörg H.
Ott, Franz
Dick, Erhard
Kass, Christof
출원인 / 주소
Schott AG
대리인 / 주소
Taylor IP, P.C.
인용정보
피인용 횟수 :
4인용 특허 :
5
초록▼
The invention relates to an alumino-silicate glass which has a thermal expansion coefficient in the range of 8 to 10×10−6/K in a temperature range of 20 to 300° C., a transformation temperature Tg in a range of 580° C. to 640° C., and a processing temperature VA in a range of 1065° C. to 1140° C. an
The invention relates to an alumino-silicate glass which has a thermal expansion coefficient in the range of 8 to 10×10−6/K in a temperature range of 20 to 300° C., a transformation temperature Tg in a range of 580° C. to 640° C., and a processing temperature VA in a range of 1065° C. to 1140° C. and which can therefore be used as an alternative for soda lime glasses. An object of the invention is also the use of the inventive glasses in applications where a high temperature stability of the glasses is advantageous, in particular as substrate glass, superstrate glass and/or cover glass in the field of semiconductor technology, preferably for Cd—Te or for CIS or CIGS photovoltaic applications and for other applications in solar technology.
대표청구항▼
1. An alumino-silicate glass, comprising: one of a following plurality of glass compositions (in weight % on an oxide basis): SiO249-5-15weight %Li2O0-10-18weight %K2O>0-10-19weight %, andMgO0-6weight %CaO5-1-0.1-10weight %Fe2O30-0.5weight %ZrO2>0.5-9weight %CeO20-3weight %WO30-3weight %Bi2O30-3weig
1. An alumino-silicate glass, comprising: one of a following plurality of glass compositions (in weight % on an oxide basis): SiO249-5-15weight %Li2O0-10-18weight %K2O>0-10-19weight %, andMgO0-6weight %CaO5-1-0.1-10weight %Fe2O30-0.5weight %ZrO2>0.5-9weight %CeO20-3weight %WO30-3weight %Bi2O30-3weight %MoO30-3weight %. wherein the alumino-silicate glass is selected so that a quotient (weight %) of Na2O/(MgO+CaO+ZrO2) is in a range of 0.5 to 0.9. 2. The alumino-silicate glass according to claim 1, wherein the alumino-silicate glass consists of one of said plurality of glass compositions. 3. The alumino-silicate glass according to claim 1, wherein said plurality of glass compositions (in weight % on said oxide basis) is: SiO249-69weight %B2O30weight %Al2O3>4.7-14weight %Li2O0-4weight %Na2O>10-18weight %K2O>0-8weight %, wherein thesum Li2O + Na2O + K2O is>10-19weight %, andMgO0-5weight %CaO7-1-10weight %wherein thesum MgO + CaO + SrO + BaO is7-19weight %, andF0-3weight %TiO20-5weight %Fe2O30-0.5weight %ZrO2>1-9weight %CeO20-3weight %WO30-3weight %Bi2O30-3weight %MoO30-3weight %. 4. The alumino-silicate glass according to claim 3, wherein K2O is >0-5-14weight %Li2O0-10-18weight %K2O>0-10-19weight %, andMgO0-5weight %CaO7-1-0.5-5weight %Fe2O30-0.5weight %ZrO2>1-9weight %CeO20-3weight %WO30-3weight %Bi2O30-3weight %MoO30-3weight %. 12. The alumino-silicate glass according to claim 1, wherein said plurality of glass compositions (in weight % on said oxide basis) is: SiO249-66weight %Al2O3>4.7-14weight %Na2O>11-18weight %K2O>0.5-8weight %, wherein thesum Na2O + K2O is>11-19weight %, andMgO0.1-3weight %CaO7-1-9weight %, wherein thesum MgO + CaO + BaO is8.2-19weight %, andF0-3weight %TiO20-5weight %Fe2O30-0.5weight %ZrO2>1-9weight %CeO20-3weight %WO30-3weight %Bi2O30-3weight %MoO30-3weight %, 13. The alumino-silicate glass according to claim 12, wherein K2O is >0-5-14weight %Na2O>11-18weight %K2O>0-11-19weight %, andMgO0.1-3weight %CaO7-0.5-5weight %Fe2O30-0.5weight %ZrO2>1-9weight %CeO20-3weight %WO30-3weight %Bi2O30-3weight %MoO30-3weight %, wherein the alumino-silicate glass contains no B2O3, no Li2O, and no SrO. 15. The alumino-silicate glass according to claim 1, wherein said plurality of glass compositions (in weight % on said oxide basis) is: SiO249-69weight %B2O30-2weight %Al2O3>4.7-15weight %Li2O0-4weight %Na2O>10-18weight %K2O>0-8weight %, wherein thesum Li2O + Na2O + K2O is>10-19weight %, andMgO0-6weight %CaO5-1-12weight %wherein thesum MgO + CaO + SrO + BaO is5-19weight %, andF0-3weight %TiO20-10weight %Fe2O30-0.5weight %ZrO2>0.5-9weight %CeO20-3weight %WO30-3weight %Bi2O30-3weight %MoO30-3weight %, wherein the alumino-silicate glass contains no B2O3, no Li2O, and no SrO. 16. The alumino-silicate glass according to claim 15, wherein K2O is >0-5-15weight %Li2O0-10-18weight %K2O>0-10-19weight %, andMgO0-6weight %CaO5-1-0.1-10weight %Fe2O30-0.5weight %ZrO2>0.5-9weight %CeO20-3weight %WO30-3weight %Bi2O30-3weight %MoO30-3weight %. the alumino-silicate glass having a thermal expansion coefficient in a range of 8 to 10×10−6/K, a transformation temperature Tg in a range of 580° C. to 640° C., and a processing temperature VA in a range of 1065° C. to 1140° C.; selecting said glass composition so that a quotient (weight %) of Na2O/(MgO+CaO+ZrO2) is in a range of 0.5 to 0.9. 20. The method of claim 19, wherein the alumino-silicate glass consists of one of said plurality of glass compositions. 21. The method of claim 19, wherein said plurality of glass compositions (in weight % on said oxide basis) is: SiO249-69weight %B2O30-2weight %Al2O3>4.7-15weight %Li2O0-4weight %Na2O>10-18weight %K2O>0-8weight %, wherein thesum Li2O + Na2O + K2O is>10-19weight %, andMgO0-6weight %CaO5-1-12weight %wherein thesum MgO + CaO + SrO + BaO is5-19weight %, andF0-3weight %TiO20-10weight %Fe2O30-0.5weight %ZrO2>0.5-9weight %CeO20-3weight %WO30-3weight %Bi2O30-3weight %MoO30-3weight %, 22. The method of claim 21, wherein K2O is >0-4.7-15weight %Li2O0-4weight %Na2O>10-18weight %K2O>0-8weight %, wherein thesum Li2O + Na2O + K2O is>10-19weight %, andMgO0-6weight %CaO5-1-12weight %wherein thesum MgO + CaO + SrO + BaO is5-19weight %, andF0-3weight %TiO20-10weight %Fe2O30-0.5weight %ZrO2>0.5-9weight %CeO20-3weight %WO30-3weight %Bi2O30-3weight %MoO30-3weight %, wherein the alumino-silicate glass is selected so that a quotient (weight %) of Na2O/(MgO+CaO+ZrO2) is in a range of 0.5 to 0.9. 26. The method of claim 25, further including using the alumino-silicate glass in a plurality of electronic applications where a high temperature stability of a plurality of glasses is required. 27. The method of claim 25, further including using the alumino-silicate glass for fusing with a plurality of metals and a plurality of alloys for a plurality of gas discharge lamps, wherein one of said plurality of metals and said plurality of alloys has a thermal expansion coefficient in a range of 8 to 10×10−6/K. 28. The method of claim 27, wherein said plurality of gas discharge lamps is a plurality of fluorescent lamps. 29. The method of claim 27, wherein said plurality of gas discharge lamps are used at least one of in a field of back lighting of TFT displays and for illuminations (“general lighting”). 30. The method of claim 25, further including using the alumino-silicate glass in a field of semiconductor technology as at least one of a substrate glass, a superstrate glass, and a cover glass having a plurality of layers one of (a) containing at least one of cadmium and tellurium in at least one of metallic and oxidic form, and (b) containing at least one of copper, indium, gallium, sulfur, and selenium in at least one of metallic and oxidic form. 31. The method of claim 25, further including using the alumino-silicate glass in a solar technology as at least one of a substrate glass, a superstrate glass, and a cover glass. 32. The method of claim 25, further including using the alumino-silicate glass in a solar technology for a plurality of solar cells as at least one of a substrate glass, a superstrate glass, and a cover glass. 33. The method of claim 32, wherein said plurality of solar cells is a plurality of thin-film solar cells. 34. The method of claim 25, further including using the alumino-silicate glass for one of Cd—Te, CIS, and CIGS photovoltaic applications as at least one of a substrate glass, a superstrate glass, and a cover glass. 35. The method of claim 25, further including using the alumino-silicate glass for one of Cd—Te, CIS, and CIGS thin-film photovoltaic applications as at least one of a substrate glass, a superstrate glass, and a cover glass.
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