Spherical fused silica compositions for injection molded ceramic cores and methods of making parts using such compositions
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United States of America Patent
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Jun 25, 2024
Grant Date -
Oct 26, 2023
app pub date -
Apr 21, 2022
filing date -
Apr 21, 2022
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Abstract
A single crystal ceramic core composition has an inorganic portion and an organic portion. The inorganic portion makes up about 85% by weight of the total weight of the ceramic core composition, and the organic portion makes up about 15% by weight of the total weight of the ceramic core composition. The inorganic portion includes about 94 to 98% by weight spherical fused silica, and about 2 to 6% by weight zircon flour. The organic portion includes about 84 to 88% by weight binder, about 1 to 2% by weight dye, about 6 to 12% by weight surfactant, and about 1 to 5% by weight polymeric fiber.
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