US 9,809,500 B2
Sintered zircon material for forming block
Julien P. Fourcade, Shrewsbury, MA (US); David J. Lechevalier, Cambridge, MA (US); and Olivier Citti, Wellesley, MA (US)
Assigned to SAINT-GOBAIN CERAMICS & PLASTICS, INC., Worcester, MA (US)
Filed by Saint-Gobain Ceramics & Plastics, Inc., Worcester, MA (US)
Filed on Mar. 31, 2015, as Appl. No. 14/674,263.
Claims priority of provisional application 61/973,133, filed on Mar. 31, 2014.
Prior Publication US 2015/0274599 A1, Oct. 1, 2015
Int. Cl. C04B 35/48 (2006.01); C04B 35/626 (2006.01)
CPC C04B 35/481 (2013.01) [C04B 35/62685 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3222 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3232 (2013.01); C04B 2235/3248 (2013.01); C04B 2235/3251 (2013.01); C04B 2235/3287 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/3463 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/72 (2013.01); C04B 2235/77 (2013.01); C04B 2235/786 (2013.01); C04B 2235/80 (2013.01); C04B 2235/85 (2013.01); C04B 2235/96 (2013.01)] 16 Claims
OG exemplary drawing
 
1. 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.