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US 9,809,500 B2Granted
Sintered zircon material for forming block
AssigneeSaint-Gobain Ceramics & Plastics, Inc.
InventorsJulien P. Fourcade, David J. Lechevalier, Olivier Citti
Life of this patent
Estimating the term…
Abstract
A refractory object may include a zircon body that may include at least about 0.1 wt. % and not greater than about 5.5 wt. % of an Al2O3 containing component for a total weight of the zircon body. The zircon body may further include at least about 25 wt. % and not greater than about 35 wt. % of a SiO2 component for a total weight of the zircon body.
Claims16
A refractory object comprising:
- a zircon body, wherein the zircon body comprises:
- at least about 1.5 wt. % and not greater than about 3.5 wt. % of Al2O3 for a total weight of the zircon body;
- at least about 25 wt. % and not greater than about 35 wt. % of SiO2 component for a total weight of the zircon body;
- at least about 0.1 wt. % of Ta2O5 for a total weight of the zircon body;
- and
- a ratio CBSiO2/CBAlC of at least about 10, where CBSiO2 represents a content of the SiO2 component in wt. % for a total weight of the zircon body and CBAlC represents a content of Al2O3 containing component in wt. % for a total weight of the zircon body.
3 more elements
A refractory object comprising:
- a zircon body comprising a creep deformation rate of not greater than about 5.0 E−5 h−1 as measured using a four point bend test at a temperature of 1350° C. and a stress of 2 MPa, wherein the zircon body comprises at least about 1.5 wt. % and not greater than about 3.5 wt. % of Al2O3 for a total weight of the zircon body, at least about 0.1 wt. % of Ta2O5 for a total weight of the zircon body and a ratio CBSiO2/CBAlC of at least about 10, where CBSiO2 represents a content of SiO2 component in wt. % for a total weight of the zircon body and CBAlC represents a content of Al2O3 containing component in wt. % for a total weight of the zircon body.
Dependencies are inferred from the claim text.