GLASS-CERAMIC ARTICLES, COMPOSITIONS, AND METHODS OF MAKING THE SAME

A glass-ceramic article that includes an article having a glass-ceramic composition, the composition including: SiO2 from about 45% to about 65%, Al2O3 from about 14% to about 28%, TiO2 from about 2% to about 4%, ZrO2 from about 3% to about 4.5%, MgO from about 4.5% to about 12%, and ZnO from about...

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Bibliographic Details
Main Authors COMTE, Marie Jacqueline Monique, DUTTA, Indrajit, ZHANG, Jian-Zhi Jay
Format Patent
LanguageEnglish
French
Published 06.08.2020
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Summary:A glass-ceramic article that includes an article having a glass-ceramic composition, the composition including: SiO2 from about 45% to about 65%, Al2O3 from about 14% to about 28%, TiO2 from about 2% to about 4%, ZrO2 from about 3% to about 4.5%, MgO from about 4.5% to about 12%, and ZnO from about 0.1 to about 4% (by weight of oxide). The article can include a coefficient of thermal expansion (CTE) of about 20 x 10-7 K-1 to about 160 x 10-7 K-1, as measured over a temperature range from 25oC to 300oC. L'invention concerne un article en vitrocéramique qui comprend un article ayant une composition de vitrocéramique, la composition comprenant : SiO2 d'environ 45 % à environ 65 %, Al2O3 d'environ 14 % à environ 28 %, TiO2 d'environ 2 % à environ 4 %, ZrO2 d'environ 3 % à environ 4,5 %, MgO d'environ 4,5 % à environ 12 %, et ZnO d'environ 0,1 à environ 4 % (en poids d'oxyde). L'article peut présenter un coefficient de dilatation thermique (CTE) d'environ 20 x 10-7 K-1 à environ 160 x 1010-7 K-1, tel que mesuré sur une plage de température allant de 25oC à 300oC.
Bibliography:Application Number: WO2020US14553