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Injection Molding of Highly-Purified Hydroxylapatite and TCP Utilizing Solid Phase Reaction Method
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1991
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Tissue EngineeringMaterials ScienceChemical EngineeringInjection MoldingHighly-purified HydroxylapatiteEngineeringMechanical PropertiesCalcium CarbonateCalcium Secondary PhosphateCeramics MaterialsPolymer ProcessingBio-based MaterialCeramic SynthesisBiomedical EngineeringCeramic PowdersBiocompatible MaterialPowder Synthesis
Injection molding of hydroxylapatite and TCP utilizing solid phase reaction method was studied. Rod like test pieces (φ6×501) were produced by the injection molding using two powder-binder compounds: (A) 6mol of calcium secondary phosphate (>98.0%), 4mol of calcium carbonate (>99.0%) and several organic binders; (B) 6mol of calcium secondary phosphate (>98.0%), 3mol calcium carbonate (>99.0%) and several organic binders. After the binder extraction process, the test pieces were heated up to 1000°-1300°C at rate of 100°C/h. When sintered at 1300°C, the sintered test piece (A) was found to consist of hydroxylapatite according to X-ray diffraction and FT-IR. On the other hand, the sintered test piece (B) was found to consist of α-TCP.