Magnetizable glass ceramic composition and methods thereof
AssigneeCorning Incorporated
InventorsTimothy Michael Gross, John Tyler Keech, Jeffrey Glenn Lynn, Jinlin Peng
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Abstract
A magnetizable glass ceramic composition including: a continuous first glass phase including SiO2, B2O3, P2O5, and R2O; a discontinuous second glass phase including at least one of SiO2, B2O3, P2O5, R2O, or mixtures thereof; and a discrete magnetizable crystalline phase dispersed in the discontinuous second glass phase, where R2O is selected from at least one of K2O, Li2O, Na2O, or mixtures thereof. Also disclosed are a method of making and a method of using the magnetizable glass ceramic composition.
Claims20
A glass ceramic composition comprising:
- a continuous first glass phase comprising SiO2, B2O3, P2O5, and R2O;
- a discontinuous second glass phase comprising at least one of SiO2, B2O3, P2O5, R2O, or mixtures thereof;
- and
- a discrete magnetizable crystalline phase dispersed in the discontinuous second phase,
- where R2O is selected from at least one of K2O, Li2O, Na2O, or mixtures thereof.
A magnetizable glass ceramic composition, comprising:
- 60 to 70% SiO2,
- 1 to 2% Al2O3,
- 3 to 5% P2O5,
- 5 to 8% B2O3,
- 5 to 8% R2O where R2O is selected from at least one of K2O, Li2O, Na2O, or mixtures thereof, and
- 10 to 22% Fe2O3, based on a composition total of 100 mol %.
Dependencies are inferred from the claim text.