Materials Chemistry and Physics, Vol.81, No.2-3, 407-410, 2003
Description of Al2O3 powders coated by Ni-P particles obtained through an electroless chemical reaction and possibilities to obtain an Al2O3/Ni-P composite
A chemical electroless method for Ni-P deposition on the surface of Al2O3 powder with the use of phosphate baths has been presented. The possibility of ceramic/metal nanocomposite formation by sintering the coated powders at temperatures of 1200 and 1400 degreesC is described. The results of the sintering process showed that at both sintering temperatures, Ni-P becomes a liquid. Moreover, the beginning of the sintering process of the ceramic matrix at 1400 degreesC was observed. This temperature is lower than required for the sintering of pure Al2O3 (1600 degrees). This result indicates the possibility to decrease the sintering temperature of Al2O3/Ni-P composites. (C) 2003 Elsevier Science B.V. All rights reserved.