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US 2014/0235427 A1Published application
Sintered zircon material for forming block
AssigneeSaint-Gobain Ceramics & Plastics, Inc.
InventorsOlivier Citti, Julien P. Fourcade, Andrea L. Kazmierczak, David J. Lechevalier
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Abstract
A component includes a body including zircon (ZrSiO4) grains, the body having a free silica intergranular phase present between the zircon grains and distributed substantially uniformly through the body. The body comprises a content of free silica not greater than about 2 wt. % for the total weight of the body.
Claims20
A component comprising:
- a body comprising zircon grains, the body having an outer portion and an interior portion;
- and
- a free silica intergranular phase present between the zircon grains and distributed substantially uniformly through the body;
- wherein the body comprises a content of free silica of not greater than about 2 wt. % for a total weight of the body.
1 more element
A component comprising:
- a body comprising zircon grains, the body having an outer portion and an interior portion;
- and
- a free silica intergranular phase present between the zircon grains;
- wherein the body comprises a content of free silica of not greater than about 2 wt. % for a total weight of the body;
- and
- wherein the body comprises at least one characteristic selected from the group consisting of:
- a fracture toughness (K1c) of greater than about 1.55 MPa·m−0.5;
- a modulus of rupture (MoR) of greater than about 60 MPa;
- a density of greater than about 4.0 g/cm3;
- a modulus or elasticity (MoE) of greater than about 175 GPa;
- a Vickers hardness of greater than about 6.0 GPA;
- and
- a combination thereof.
10 more elements
A method for forming a zircon component comprising:
- providing a raw material powder comprising zircon grains;
- and
- sintering the raw material to create a body comprising zircon grains and a free silica intergranular phase present between the zircon grains and distributed substantially uniformly through the body.
Dependencies are inferred from the claim text.