LARGE XENOTIME CERAMIC BLOCK AND DRY PROCESS FOR MAKING THE SAME

A ceramic block consisting essentially of substantially homogeneous (Y2O3)chi P2O5, where 0.95@x@1.05, having length LL, a width WW and a height HH, and a volume W of at least 8×10-3 m3 essentially free of cracks throughout the volume, a density of at least 85% of the theoretical maximal density of...

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Bibliographic Details
Main Authors MCINTOSH JOSEPH JAMES, LANGENSIEPEN RALPH ALFRED, TIMMONS TRACEY LYNN
Format Patent
LanguageEnglish
Published 29.08.2013
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:A ceramic block consisting essentially of substantially homogeneous (Y2O3)chi P2O5, where 0.95@x@1.05, having length LL, a width WW and a height HH, and a volume W of at least 8×10-3 m3 essentially free of cracks throughout the volume, a density of at least 85% of the theoretical maximal density of Y203.P2O5 under standard conditions, and a creep rate CR at 1250° C. and 6.89 MPa; where CR@8.0×10-6 hour-1 and method for making the same. The method utilizes a dry process where the starting YP04-based ceramic material is synthesized by reacting anhydrous P2O5 with dry Y2O3 powder.
Bibliography:Application Number: US201113881542