Synthesis of Calcium Metaphosphates Fine Powders by Chemical Precipitation Methods

Abstract:

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Calcium metaphosphate (CMP) fine powders were produced by a chemical precipitation method. In order to produce the powders, CMP was prepared by the mixing of two precursors, such as calcium oxide (CaO) and phosphate acid (H3PO4). Sparingly soluble chemicals, the Ca/P ratio of the mixture was set to be 0.50 to produce stoichiometric CMP, were chemical agitated in phosphate acid solution. At least 3 hours of pre-hydrolysis of phosphorus precursor were required to obtain CMP phase. The CMP powders were dried in a drying oven at 60°C for 72 hours and then heat-treated at various temperatures at a ramp of 1°C /min in air for various hours. The obtained powder was analyzed using XRD, XRF, FT-IR, SEM, TG-DTA, Zeta Potential Meter, Specific Surface Area, and Particle Size Analyzer. The results showed that obtained CMP powders have a significantly powder characteristics.

Info:

Periodical:

Advanced Materials Research (Volumes 105-106)

Edited by:

Wei Pan and Jianghong Gong

Pages:

532-535

DOI:

10.4028/www.scientific.net/AMR.105-106.532

Citation:

Y. Zhang et al., "Synthesis of Calcium Metaphosphates Fine Powders by Chemical Precipitation Methods", Advanced Materials Research, Vols. 105-106, pp. 532-535, 2010

Online since:

April 2010

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Price:

$35.00

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