Sintering of new SiC-Phosphate composite materials for grinding wheels fabrication


The effect of several variables such as molar ratio P2O5/B2O3 (X), temperature and heating cycle on the strength of chemically bonded SiC materials for grinding wheels fabrication was studied. It was shown that the highest compressive strength (52.4 MPa) could be obtained using an optimal molar ratio X = 4.5 and a multiple step heating cycle up to a sintering temperature of 800degreesC. DTA, XRD, SEM and dilatometrical analysis were performed to follow the different stages of the structural development.



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Materials Science


Silva, RF; Berlinov, HH

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