WO2000073225A1 - VERRE TRANSPARENT CRISTALLISE DE TYPE Li2O-Al2O3-SiO2 ET VERRE CRISTALLIN - Google Patents
VERRE TRANSPARENT CRISTALLISE DE TYPE Li2O-Al2O3-SiO2 ET VERRE CRISTALLIN Download PDFInfo
- Publication number
- WO2000073225A1 WO2000073225A1 PCT/JP1999/003293 JP9903293W WO0073225A1 WO 2000073225 A1 WO2000073225 A1 WO 2000073225A1 JP 9903293 W JP9903293 W JP 9903293W WO 0073225 A1 WO0073225 A1 WO 0073225A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glass
- crystallized glass
- al2o3
- li2o
- transparent crystallized
- Prior art date
Links
Classifications
-
- 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
Definitions
- the present invention relates to a transparent crystallized glass used for a combustion device for petroleum, coal, gas, wood and the like, that is, a front window or a viewing window of a heating appliance, a heating furnace, a slow cooling furnace or the like.
- the function of the front window in heating appliances is to increase the heating effect by transmitting the heat rays generated from the internal flame to the outside, and to increase the visual warmth by making the flame visible.
- the function of windows II is to enable external observation of the burning state of the flame. These windows must withstand the high temperatures of flames and the thermal shock of ignition. Therefore, it is necessary that the window glass material used for the windows of the combustion equipment be transparent, and at the same time, have low thermal expansion, high strength, and excellent heat resistance and thermal shock resistance.
- borosilicate glass, quartz glass, and L i 20— A 1 2 ⁇ 3 —S i ⁇ 2 series transparent crystallized glass are used as materials for windows of heating appliances and the like.
- L i 2 ⁇ - A 1 2 0 3 - S for I_ ⁇ 2 based transparent crystallized glass has a high small strength coefficient of thermal expansion, has excellent heat resistance and thermal shock resistance, also relatively inexpensive It is widely used because it can be manufactured.
- L i 2 ⁇ one A 1 2 ⁇ 3 - S I_ ⁇ 2 based transparent crystallized glass the inner surface of the window when placed in the combustion Kiri ⁇ air, i.e. fine undergoes chemical corrosion on the surface of the firing side There is a problem that cracks occur and transparency and strength are remarkably reduced.
- An object of the present invention L i 2 0- A 1 petroleum, coal, gas, even if prolonged exposure to an atmosphere containing H 2 S_ ⁇ 4 generated by the fuel such as wood, no fine cracks and 2 0 3 -S i 0 2 based transparent crystallized glass is to provide a crystallizable glass for obtaining such crystallized glass.
- the present inventors have, as a result of various experiments, L i 2 0_A 1 2 ⁇ 3 - S I_ ⁇ 2 based transparent crystallized glass of the / 3- OH is fine cladding by Ion exchange reaction between hydrogen ions
- the present invention has been found to play an important role in suppressing the occurrence of cracks, and has led to the present invention.
- the transparent crystallized glass of the L i 2 L A 1 2 0 3 —S i 0 2 system of the present invention precipitates a ⁇ -quartz solid solution as a main crystal, and has an average of 30 to 380 ° C. linear thermal expansion coefficient gar 1 0 ⁇ ; L 0 X 10- 7 ° (: a and, and,
- the Li 2 0-A 12 ⁇ 3 —Si 2 S crystalline glass of the present invention precipitates a
- the amount of j8_OH is determined by the following equation (1) in the infrared absorption spectrum of the crystallized glass.
- T3850 the transmittance around 3850 cm " 1 ,
- L i 2 0-A 12 0 3 - S i 0 2 based transparent crystallized glass while glass I3- OH to 0. 28Zmm more, preferably 0.40 to 2 range OZmm. contains. / 3— ⁇ H contributes to lowering the concentration of the constituent components on the glass surface and increasing the concentration of other elements when the glass is crystallized. As a result, the exchange reaction between lithium ions and hydrogen ions in the crystal on the surface of the crystallized glass is suppressed, and the occurrence of fine cracks can be prevented.
- 3- ⁇ H in the glass can be increased by increasing the amount of water in the combustion gas when glass is melted, by performing steam publishing in the molten glass, or by selecting a raw material with a high OH content. Can increase it.
- the glass 3-quartz solid solution by precipitating as a main crystal, is characterized in that adjusting the flat soaking expansion coefficient in the range one 10 ⁇ 1 Ox 10- 7 / ° C, If the average coefficient of thermal expansion is out of this range, sufficient heat resistance and thermal shock resistance cannot be ensured for the combustion device window.
- the L i 2 A—A 1 2 ⁇ 3 —S i ⁇ 2 -based transparent crystallized glass of the present invention and the crystalline glass which is the original glass thereof are L i 20 , S i ⁇ 2 and A 12.
- 0 3 of the components, 0. 058 ⁇ ⁇ L i 2 ⁇ _Z (S I_ ⁇ 2 + a 1 2 ⁇ 3) ⁇ preferably contains a relationship 031 to fully plus as a weight ratio.
- the crystallized glass and crystallizable glass of the present invention may contain a variety of components.
- Na 2 ⁇ as a component for controlling the thermal expansion coefficient, K 2 ⁇ , Mg_ ⁇ , Zn_ ⁇ , a B a ⁇ like
- the T I_ ⁇ 2, Z r0 2 such as nucleating agents, the P 2 0 5 and the like as a component for promoting nucleation
- the content of Z ⁇ is 1% by weight or less and the content of Ba ⁇ is 1.5% by weight or less.
- ZnO can be added up to about 3% for the purpose of supplementing a part of L i 2 ⁇ , but it is the main crystal.) 3- More than 1% When the amount of precipitated crystals increases, the ion exchange reaction becomes more likely to occur, and the effect of suppressing the minute cracks due to ⁇ H becomes difficult to function.
- Ba ⁇ can be added up to about 5% as a component that aids melting of glass, but if it is added in excess of 1.5%, brownish color is likely to occur in the glass, which is a favorable appearance for windows of combustion equipment. Is difficult to obtain.
- the preferred composition range of the Li 2 0-A 12 ⁇ 3 —S i ⁇ 2 system transparent crystallized glass and the crystalline glass as the raw glass thereof is expressed in terms of weight percentage as S i 0 2 55 75% (preferably, 60 to 75%), A l 2 ⁇ 3 15% to 30% (good Mashiku is, 17 to 27%), L i 2 ⁇ 2-5% (preferably, 2-4. 8%), Na 2 ⁇ 0-3% (preferably 0-: L%), K 200 0-3% (preferably 0-1%), MgO 0-5% (preferably 0-4%) , Zn_ ⁇ 0-3% (preferably rather is 0 to 1%), 8 & ⁇ 0-5% (preferably 0 ⁇ 1.
- T i 0 2 0 ⁇ 5% preferably 1-5%
- Z r 0 2 0 ⁇ 4% preferably, 0. 5 ⁇ 4%
- P 2 ⁇ 5 0 to 5% preferably, 0 ⁇ 4%
- a s 2 0 3 0 ⁇ 2. 5 % good Mashiku is, 0 ⁇ 2%
- Sb 2 0 3 0 ⁇ 2. 5% preferably, 0-2%
- Sn0 2 0 to 2. 5% preferably, 0-2%
- Table 1 Composition Contact and shown in
- the amount of / 3-OH in glass can be increased or decreased by adjusting the concentration of oxygen supplied to the fuel when burning oil, gas, etc., which is a heat source for melting, by increasing or decreasing the amount of moisture in the combustion gas. went.
- the melting of the glass was performed in a refractory material, but may be performed in platinum.
- the content of 3-OH was determined by an infrared spectrophotometer using a sample polished to a thickness of about 3 mm.
- the precipitated crystals were identified by X-ray diffraction, and the coefficient of thermal expansion was determined by daytime measurement. “/ 3—Q.” In the table indicates a / 3—quartz solid solution.
- each sample is also the main crystal is i3- quartz solid solution, the average linear thermal expansion coefficient was in the range of one 10 ⁇ 10 X 10- 7 Z ° C.
- S—OH content of Sample Nos. 1 to 6 was 0.42 to 0.78 Zmm, and the / 3-OH content of Sample No. 7 was 0.271 1111. Although the appearance of each sample was transparent, sample No. 1 was slightly milky, and sample No. 5 was slightly brownish.
- microcracking resistance was evaluated.
- the microcracking resistance was measured by two methods: acceleration test and mounting test to a combustion device.
- the acceleration test was performed as follows. First, 20 milliliters of a 6 V o 1% sulfuric acid aqueous solution was added to a beaker having a volume of 1 liter. Subsequently, a net was placed in the beaker, and the sample was placed on the net so that it was exposed to the sulfuric acid vapor. Then, the lid was lightly covered with a glass plate. Subsequently, after heating at 320 ° C for 30 minutes, the sample was taken out and the surface was observed with a microscope. In Table 1 above, “No” is shown for cracks not found, and “Yes” for cracks found.
- each of the samples Nos. 1 to 6 of the present invention cracked in the accelerated test. No cracks were observed in the mounting test for more than 35 days, and the micro crack resistance was good.
- the samples of Nos. 1, 3, 4, and 6 having a content of Z ⁇ ⁇ of 1% or less showed no microcracks even after 50 days in the mounting test, and were extremely excellent. Had fine crack resistance.
- the sample of No. 7 which is a comparative example is a crystallized glass having the same oxide composition as the sample No. 3, but since the content of) 3- ⁇ H is small, the acceleration test In both of the mounting tests, it was found to be much inferior to each of the samples of the examples, indicating that the fine crack resistance was poor.
- L i 2 ⁇ - A 1 2 ⁇ 3 of the present invention - S i 0 2 based transparent crystallized glass contains oil, coal, gas, H 2 S 0 4 generated by the fuel such as wood Even if exposed to the atmosphere for a long time, fine cracks do not occur. Therefore, it is extremely effective as a window glass material for a front window or a viewing window of a combustion apparatus such as a heating appliance, a heating furnace, and a lehr.
- L i 2 0- A 1 2 ⁇ 3 of the present invention the use of the S I_ ⁇ 2 -based crystallizable glass, radiators and heating furnace, suitable as a material of the front window Ya vision can windows combustion apparatus of lehr such A transparent crystallized glass can be produced.
- the transparent crystallized glass according to the present invention is most suitable for use in a combustion device for petroleum, coal, gas, wood, etc., that is, a front window or a viewing window of a heating appliance, a heating furnace, a slow cooling furnace, or the like.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99973870A EP1114803B2 (en) | 1999-05-28 | 1999-06-21 | Li2o-al2o3-sio2 type transparent crystalized glass and crystalline glass |
US09/744,120 US6593258B1 (en) | 1999-05-28 | 1999-06-21 | Li2O-Al2O3-SiO2 transparent crystallized glass and crystallizable |
CA002338354A CA2338354C (en) | 1999-05-28 | 1999-06-21 | Li2o-al2o3-sio2 type transparent crystallized glass and crytallizable glass |
DE69927511T DE69927511T3 (de) | 1999-05-28 | 1999-06-21 | Transparentes kristallisiertes LI2O-AI2O3-SiO2-Glas |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11/149426 | 1999-05-28 | ||
JP11149426A JP3063760B2 (ja) | 1998-05-29 | 1999-05-28 | Li2O―Al2O3―SiO2系透明結晶化ガラス及び結晶性ガラス |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000073225A1 true WO2000073225A1 (fr) | 2000-12-07 |
Family
ID=15474859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/003293 WO2000073225A1 (fr) | 1999-05-28 | 1999-06-21 | VERRE TRANSPARENT CRISTALLISE DE TYPE Li2O-Al2O3-SiO2 ET VERRE CRISTALLIN |
Country Status (6)
Country | Link |
---|---|
US (1) | US6593258B1 (ja) |
EP (1) | EP1114803B2 (ja) |
CA (1) | CA2338354C (ja) |
DE (1) | DE69927511T3 (ja) |
DK (1) | DK1114803T3 (ja) |
WO (1) | WO2000073225A1 (ja) |
Families Citing this family (21)
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US7071131B2 (en) * | 2002-09-11 | 2006-07-04 | Corning Incorporated | Cerammable mineral glass, glass-ceramic articles and preparation thereof |
JP4941872B2 (ja) * | 2003-09-02 | 2012-05-30 | 日本電気硝子株式会社 | 液晶ディスプレイ用透明無アルカリガラス基板 |
US7226881B2 (en) * | 2003-09-19 | 2007-06-05 | Kabushiki Kaisha Ohara | Ultra low thermal expansion transparent glass ceramics |
JP4501152B2 (ja) | 2003-09-24 | 2010-07-14 | 日本電気硝子株式会社 | ガラス物品 |
FR2864071A1 (fr) * | 2003-12-17 | 2005-06-24 | Snc Eurokera | Vitroceramiques, verres precurseurs, articles en lesdites vitroceramiques, elaboration desdits vitroceramiques et articles |
DE102005032786B4 (de) * | 2005-07-14 | 2009-04-23 | Schott Ag | Vorrichtung mit korrosionsresistentem Glaskeramik-Artikel sowie Verwendung einer Glaskeramik |
JP4976058B2 (ja) | 2006-06-06 | 2012-07-18 | 株式会社オハラ | 結晶化ガラスおよび結晶化ガラスの製造方法 |
DE102007033338B4 (de) * | 2007-07-16 | 2010-06-02 | Schott Ag | Hartstoffbeschichteter Glas- oder Glaskeramik-Artikel und Verfahren zu dessen Herstellung sowie Verwendung des Glas- oder Glaskeramik-Artikels |
JP5458532B2 (ja) * | 2008-09-08 | 2014-04-02 | 日本電気硝子株式会社 | Las系フロートガラス |
JP2011132061A (ja) * | 2009-12-24 | 2011-07-07 | Asahi Glass Co Ltd | 情報記録媒体用ガラス基板および磁気ディスク |
CN102933516B (zh) | 2010-05-31 | 2015-07-29 | 日本电气硝子株式会社 | Li2O-Al2O3-SiO2类结晶化玻璃及其制造方法 |
DE102010027461B4 (de) * | 2010-07-17 | 2019-08-22 | Schott Ag | Lithiumhaltige, transparente Glaskeramik mit geringer Wärmedehnung, einer weitestgehend amorphen, an Lithium verarmten, überwiegend glasigen Oberflächenzone und hoher Transmission, ihre Herstellung und Verwendung |
DE102010032113B9 (de) * | 2010-07-23 | 2017-06-22 | Schott Ag | Transparente oder transparente eingefärbte Lithiumaluminiumsilikat-Glaskeramik mit einstellbarer thermischer Ausdehnung und deren Verwendung |
DE102010043326B4 (de) | 2010-11-03 | 2013-08-14 | Schott Ag | Verfahren zur festigkeitssteigernden Keramisierung eines gefloateten kristallisierbaren Glases, keramisiertes Floatglas und Verwendung des keramisierten Floatglases |
DE102011081234A1 (de) * | 2011-08-19 | 2013-02-21 | Schott Ag | Glaskeramik, die wenigstens teilweise mit einer Hartstoffschicht versehen ist |
TW202334051A (zh) | 2014-10-08 | 2023-09-01 | 美商康寧公司 | 具有葉長石及矽酸鋰結構的高強度玻璃陶瓷 |
CN105218170B (zh) * | 2015-09-17 | 2018-03-09 | 广东博德精工建材有限公司 | 一种高硬度高耐磨免抛光铁系微晶玻璃陶瓷复合板及其制备方法 |
KR20180095559A (ko) | 2015-12-17 | 2018-08-27 | 코닝 인코포레이티드 | 빠른 확산을 갖는 이온 교환 가능한 유리 |
CN109803937B (zh) | 2016-10-12 | 2022-12-06 | 康宁公司 | 玻璃陶瓷 |
CN110944954A (zh) | 2017-07-26 | 2020-03-31 | Agc株式会社 | 化学强化用玻璃、化学强化玻璃以及电子设备壳体 |
FR3088321B1 (fr) * | 2018-11-09 | 2021-09-10 | Eurokera | Vitroceramiques transparentes de quartz-beta a basse teneur en lithium |
Citations (5)
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JPS59116150A (ja) * | 1982-12-20 | 1984-07-04 | コ−ニング・グラス・ワ−クス | スト−ブ用窓として特に好適なガラス−セラミツクとその製造方法 |
JPS6452631A (en) * | 1987-01-19 | 1989-02-28 | Nippon Sheet Glass Co Ltd | Transparent crystallized glass |
JPH08104539A (ja) * | 1994-09-30 | 1996-04-23 | Central Glass Co Ltd | 透明非膨張性結晶化ガラス |
JPH09169542A (ja) * | 1987-01-19 | 1997-06-30 | Nippon Sheet Glass Co Ltd | 透明結晶化ガラス |
JPH09188538A (ja) * | 1995-12-29 | 1997-07-22 | Nippon Electric Glass Co Ltd | Li2 O−Al2 O3 −SiO2 系結晶化ガラス |
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DE3345316A1 (de) * | 1982-12-20 | 1984-06-20 | Corning Glass Works, Corning, N.Y. | Glaskeramik, besonders fuer fensterglas in holz- und kohleoefen |
US4438210A (en) * | 1982-12-20 | 1984-03-20 | Corning Glass Works | Transparent colorless glass-ceramics especially suitable for use as stove windows |
US4707458A (en) * | 1985-06-03 | 1987-11-17 | Corning Glass Works | Glass-ceramics suitable for ring laser gyros |
JP2602188B2 (ja) * | 1988-06-07 | 1997-04-23 | 日本電気硝子株式会社 | 燃焼装置窓用Li▲下2▼O−A1▲下2▼O▲下3▼−SiO▲下2▼系透明結晶化ガラス |
JPH0686310B2 (ja) * | 1989-04-28 | 1994-11-02 | セントラル硝子株式会社 | 透明非膨張性結晶化ガラス |
FR2657079B1 (fr) * | 1990-01-12 | 1993-04-09 | Corning France | Verres precurseurs de vitroceramiques, procede de conversion de ces verres en vitroceramiques a dilation tres faible ou nulle et vitroceramiques obtenues. |
JP2516537B2 (ja) * | 1992-09-14 | 1996-07-24 | 株式会社オハラ | 低膨張透明結晶化ガラス |
DE4321373C2 (de) † | 1993-06-26 | 1995-12-14 | Schott Glaswerke | Glaskeramik mit hoher Transmission im Wellenlängenbereich von 2700 bis 3300 nm, Verfahren zu deren Herstellung und deren Verwendung |
JP2668057B2 (ja) * | 1994-09-13 | 1997-10-27 | 株式会社オハラ | 低膨張透明ガラスセラミックス |
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JP3311308B2 (ja) * | 1998-03-03 | 2002-08-05 | 株式会社オハラ | 垂直磁気記録媒体用ガラスセラミックス基板 |
JP3526047B2 (ja) * | 1998-06-19 | 2004-05-10 | 日本電気硝子株式会社 | Li2 O−Al2 O3 −SiO2 系透明結晶化ガラス |
JP4000500B2 (ja) * | 1999-08-02 | 2007-10-31 | 日本電気硝子株式会社 | Li2O−Al2O3−SiO2系結晶化ガラス及び結晶性ガラス |
-
1999
- 1999-06-21 DE DE69927511T patent/DE69927511T3/de not_active Expired - Lifetime
- 1999-06-21 US US09/744,120 patent/US6593258B1/en not_active Expired - Lifetime
- 1999-06-21 CA CA002338354A patent/CA2338354C/en not_active Expired - Fee Related
- 1999-06-21 WO PCT/JP1999/003293 patent/WO2000073225A1/ja active IP Right Grant
- 1999-06-21 DK DK99973870T patent/DK1114803T3/da active
- 1999-06-21 EP EP99973870A patent/EP1114803B2/en not_active Expired - Lifetime
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JPS59116150A (ja) * | 1982-12-20 | 1984-07-04 | コ−ニング・グラス・ワ−クス | スト−ブ用窓として特に好適なガラス−セラミツクとその製造方法 |
JPS6452631A (en) * | 1987-01-19 | 1989-02-28 | Nippon Sheet Glass Co Ltd | Transparent crystallized glass |
JPH09169542A (ja) * | 1987-01-19 | 1997-06-30 | Nippon Sheet Glass Co Ltd | 透明結晶化ガラス |
JPH08104539A (ja) * | 1994-09-30 | 1996-04-23 | Central Glass Co Ltd | 透明非膨張性結晶化ガラス |
JPH09188538A (ja) * | 1995-12-29 | 1997-07-22 | Nippon Electric Glass Co Ltd | Li2 O−Al2 O3 −SiO2 系結晶化ガラス |
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Title |
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See also references of EP1114803A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1114803B2 (en) | 2008-11-26 |
CA2338354A1 (en) | 2000-12-07 |
US6593258B1 (en) | 2003-07-15 |
EP1114803A1 (en) | 2001-07-11 |
DE69927511T2 (de) | 2006-03-23 |
DK1114803T3 (da) | 2006-02-06 |
DE69927511T8 (de) | 2006-06-08 |
DE69927511D1 (de) | 2006-02-09 |
EP1114803A4 (en) | 2004-04-14 |
DE69927511T3 (de) | 2009-06-25 |
CA2338354C (en) | 2009-01-06 |
EP1114803B1 (en) | 2005-09-28 |
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