Aluminum titanate batch compositions and method
First Claim
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1. A method for producing a ceramic article comprised of a sintered phase aluminum titanate composition, comprising the steps of:
- providing a plasticized aluminum titanate precursor batch composition comprising;
an inorganic batch composition containing an alumina source, a silica source, and a titania source;
a recycled green aluminum titanate precursor composition; and
a sintering aid;
an organic binder; and
a liquid vehicle;
wherein the recycled green aluminum titanate precursor composition comprises at least one pore former; and
wherein the recycled green aluminum titanate precursor composition comprises particles having a median particle diameter in the range of about 10 μ
m to about 50 μ
m;
forming an extruded green body from the plasticized aluminum titanate precursor batch composition; and
firing the formed green body under conditions effective to convert the aluminum titanate precursor composition into a ceramic composition comprising a sintered phase aluminum titanate.
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Abstract
Aluminum titanate precursor batch compositions comprising a recycled aluminum titanate component, at least a portion of the recycled aluminum titanate component being comprised of a recycled pre-reacted aluminum titanate composition or alternatively of an un-reacted green aluminum titanate precursor composition, and methods for producing aluminum titanate ceramic articles utilizing the inventive batch compositions.
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Citations
22 Claims
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1. A method for producing a ceramic article comprised of a sintered phase aluminum titanate composition, comprising the steps of:
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providing a plasticized aluminum titanate precursor batch composition comprising; an inorganic batch composition containing an alumina source, a silica source, and a titania source;
a recycled green aluminum titanate precursor composition; and
a sintering aid;an organic binder; and a liquid vehicle; wherein the recycled green aluminum titanate precursor composition comprises at least one pore former; and wherein the recycled green aluminum titanate precursor composition comprises particles having a median particle diameter in the range of about 10 μ
m to about 50 μ
m;forming an extruded green body from the plasticized aluminum titanate precursor batch composition; and firing the formed green body under conditions effective to convert the aluminum titanate precursor composition into a ceramic composition comprising a sintered phase aluminum titanate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for producing a ceramic article comprised of a sintered phase aluminum titanate composition, comprising the steps of:
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providing a plasticized aluminum titanate precursor batch composition comprising; an inorganic batch composition containing a recycled green aluminum titanate precursor composition; an organic binder; and a liquid vehicle; wherein the recycled green aluminum titanate precursor composition comprises at least one pore former; and wherein the recycled green aluminum titanate precursor composition comprises particles having a median particle diameter in the range of about 10 μ
m to about 50 μ
m;forming an extruded green body from the plasticized aluminum titanate precursor batch composition; and firing the formed green body under conditions effective to convert the aluminum titanate precursor composition into a ceramic composition comprising a sintered phase aluminum titanate. - View Dependent Claims (10, 11, 12)
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13. A method for producing a ceramic article comprised of a sintered phase aluminum titanate composition, comprising the steps of:
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providing a plasticized aluminum titanate precursor batch composition comprising; an inorganic batch composition containing an alumina source, a silica source, and a titania source;
a recycled pre-reacted aluminum titanate composition containing a strontium carbonate source and a calcium carbonate source; and
a sintering aid;an organic binder; and a liquid vehicle; wherein the recycled pre-reacted aluminum titanate composition comprises particles having a median particle diameter in the range of about 8 μ
m to about 55 μ
m;forming an extruded green body from the plasticized aluminum titanate precursor batch composition; and firing the formed green body under conditions effective to convert the aluminum titanate precursor composition into a ceramic composition comprising a sintered phase aluminum titanate. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method for producing a ceramic article comprised of a sintered phase aluminum titanate composition, comprising the steps of:
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providing a plasticized aluminum titanate precursor batch composition comprising; an inorganic batch composition containing a recycled pre-reacted aluminum titanate composition containing a strontium carbonate source and a calcium carbonate source; an organic binder; and a liquid vehicle; wherein the recycled pre-reacted aluminum titanate composition comprises particles having a median particle diameter in the range of about 8 μ
m to about 55 μ
m;forming an extruded green body from the plasticized aluminum titanate precursor batch composition; and firing the formed green body under conditions effective to convert the aluminum titanate precursor composition into a ceramic composition comprising a sintered phase aluminum titanate. - View Dependent Claims (21, 22)
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Specification