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US 7,767,292 B2Granted
Fired, fire-resistant ceramic product
AssigneeRefractory Intellectual Property GmbH & Co. KG
InventorsBoro Djuricic, Bernd Buchberger, Klaus Santowski, Franz Koeck
Life of this patent
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Abstract
The invention relates to a fired, fire resistant (refractory) ceramic product.
Claims13
A fired, fire-resistant ceramic product whose structure
- a) possesses an open porosity of 2-30% by volume, wherein
- b) more than half of the open porosity consisting of pores with each of the pores has a maximum diameter of 15 μm and these pores lie within a pore size interval whose maximum value is less than or equal to 10 times the minimum value, and
- c) is characterised by sintered granule-type structures at the surface of which slit-type pores extend at least partially whose length and width is at least 7 times greater than their height.
A fired, fire-resistant ceramic product whose structure
- a) possesses an open porosity of 2-30% by volume, wherein
- b) more than half of the open porosity consisting of pores with each of the pores has a maximum diameter of 15 μm and these pores lie within a pore size interval whose maximum value is less than or equal to 10 times the minimum value, and
- c) is characterised by sintered granule-type structures at the surface of which slit-type pores extend at least partially whose length and width is at least 7 times greater than their height and whose slit-type pores make up 5-20% of the open porosity.
Dependencies are inferred from the claim text.