Characteristics of calcium phosphate powders synthesized from cuttlefish bone and phosphoric acid
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Fine calcium phosphate powders were fabricated by using recycled cuttlefish bone. A raw cuttlefish bone easily turned to CaO by a calcining process and the calcined cuttlefish bone was mixed with phosphoric acid by a wet, ball-milling method. The crystalline phases of the heated mixtures were dependent on the mixing ratio (wt%) of the calcined cuttlefish bone to phosphoric acid. In a wide mixing ratio range of 1:1.1-1:1.7 wt%, calcium phosphates were synthesized and fully crystallized HAp and β-TCP were observed at about 900°C and above. The synthesized powders showed fine particles of below 0.5 μm in size. In this study, the crystalline development and Ca/P molar ratios of the synthesized calcium phosphate powders were studied by X-ray diffractometry and chemical analysis using ICP AES. In addition, the microstructures of the cuttlefish bone and synthesized calcium phosphate powders were examined by scanning electron microscopy.
Abstract
Fine calcium phosphate powders were fabricated by using recycled cuttlefish bone. A raw cuttlefish bone easily turned to CaO by a calcining process and the calcined cuttlefish bone was mixed with phosphoric acid by a wet, ball-milling method. The crystalline phases of the heated mixtures were dependent on the mixing ratio (wt%) of the calcined cuttlefish bone to phosphoric acid. In a wide mixing ratio range of 1:1.1-1:1.7 wt%, calcium phosphates were synthesized and fully crystallized HAp and β-TCP were observed at about 900°C and above. The synthesized powders showed fine particles of below 0.5 μm in size. In this study, the crystalline development and Ca/P molar ratios of the synthesized calcium phosphate powders were studied by X-ray diffractometry and chemical analysis using ICP AES. In addition, the microstructures of the cuttlefish bone and synthesized calcium phosphate powders were examined by scanning electron microscopy.