TW201613837A - Alkali-free glass - Google Patents
Alkali-free glassInfo
- Publication number
- TW201613837A TW201613837A TW104128184A TW104128184A TW201613837A TW 201613837 A TW201613837 A TW 201613837A TW 104128184 A TW104128184 A TW 104128184A TW 104128184 A TW104128184 A TW 104128184A TW 201613837 A TW201613837 A TW 201613837A
- Authority
- TW
- Taiwan
- Prior art keywords
- cao
- mgo
- alkali
- free glass
- sro
- Prior art date
Links
Landscapes
- Chemical & Material Sciences (AREA)
- Glass Compositions (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
An alkali-free glass is provided that has a high point of strain, and exhibits a controlled etching rate. The alkali-free glass of the present invention, on the basis of oxides in molar percentage, comprises: 67 to 77% of SiO2, 8 to 16% of Al2O3, 0.1 to 2.9% of B2O3, 2 to 6.5% of MgO, 5.5 to 12.5% of CaO, 0 to 8% of SrO and 2 to 6% of BaO, and MgO+CaO+SrO+BaO is 10 to 17.5%, the ratio of (MgO+CaO+SrO+BaO) to Al2O3 is below 2.2, the ratio of MgO to CaO is below 0.7, the weight reduction rate of HF is less than 0.16(mg/cm 2 )/min, and the strain point is more than 705DEG C, the average thermal expansion coefficient at 50~350DEG C is less than 41.5×10 -7 /DEG C, the specific gravity is less than 2.61g/cm 3, and the Young's modulus number is above 78Gpa.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014172477 | 2014-08-27 | ||
| JP2014-172477 | 2014-08-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201613837A true TW201613837A (en) | 2016-04-16 |
| TWI652243B TWI652243B (en) | 2019-03-01 |
Family
ID=55417172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW104128184A TWI652243B (en) | 2014-08-27 | 2015-08-27 | Alkali-free glass |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6575223B2 (en) |
| KR (1) | KR102412995B1 (en) |
| CN (1) | CN105384335B (en) |
| TW (1) | TWI652243B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107129142B (en) * | 2017-04-18 | 2021-02-09 | 东旭光电科技股份有限公司 | Alkali-free glass substrate and preparation method thereof |
| JP7418947B2 (en) * | 2018-01-31 | 2024-01-22 | 日本電気硝子株式会社 | glass |
| CN116062992A (en) * | 2018-06-19 | 2023-05-05 | 康宁公司 | Glass with high strain point and high Young modulus |
| KR20210070295A (en) * | 2018-10-05 | 2021-06-14 | 니폰 덴키 가라스 가부시키가이샤 | Alkali-free glass plate |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS598638A (en) * | 1982-07-06 | 1984-01-17 | Ngk Spark Plug Co Ltd | Glaze composition |
| JP2644622B2 (en) * | 1990-10-24 | 1997-08-25 | ホーヤ株式会社 | Glass for liquid crystal display substrates |
| CN1160268C (en) * | 1998-11-30 | 2004-08-04 | 康宁股份有限公司 | Glasses for flat panel displays |
| EP1996525B1 (en) | 2006-02-10 | 2019-05-22 | Corning Incorporated | Glass compositions having high thermal and chemical stability and methods of making thereof |
| JP5874316B2 (en) | 2010-10-27 | 2016-03-02 | 日本電気硝子株式会社 | Alkali-free glass |
| JP5729673B2 (en) * | 2010-12-06 | 2015-06-03 | 日本電気硝子株式会社 | Alkali-free glass |
| WO2014100432A1 (en) * | 2012-12-21 | 2014-06-26 | Corning Incorporated | Glass with improved total pitch stability |
| JP5914453B2 (en) * | 2012-12-28 | 2016-05-11 | ＡｖａｎＳｔｒａｔｅ株式会社 | Glass substrate for display and manufacturing method thereof |
-
2015
- 2015-08-21 JP JP2015163766A patent/JP6575223B2/en active Active
- 2015-08-26 KR KR1020150120054A patent/KR102412995B1/en active IP Right Grant
- 2015-08-27 TW TW104128184A patent/TWI652243B/en active
- 2015-08-27 CN CN201510536259.2A patent/CN105384335B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105384335A (en) | 2016-03-09 |
| JP2016047794A (en) | 2016-04-07 |
| JP6575223B2 (en) | 2019-09-18 |
| KR102412995B1 (en) | 2022-06-24 |
| TWI652243B (en) | 2019-03-01 |
| KR20160025478A (en) | 2016-03-08 |
| CN105384335B (en) | 2018-05-18 |
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