%0 Journal Article %T Correlation between fracture toughness, work of fracture and fractal dimensions of Alumina-mullite-zirconia composites %A Santos %A S¨¦rgio Francisco dos %A Rodrigues %A Jos¨¦ de Anchieta %J Materials Research %D 2003 %I ABM, ABC, ABPol, SBCC, SBCr, SBMM, SBPMat %R 10.1590/S1516-14392003000200017 %X the purpose of this work is to show the correlation between the fractal dimension, d, and mechanical properties such as work of fracture, gwof, and fracture toughness, kic. alumina-mullite-zirconia composites were characterized by the slit-island method, sim, to obtain values of d and its fractional part, d*. the fracture surface roughness was also evaluated using a cyclic voltametric method. it will be shown that there is a positive experimental dependency of gwof on d* and that there is not an evident correlation between kic and d*. %K work of fracture %K fracture toughness %K fractal dimension %K roughness. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1516-14392003000200017&lng=en&nrm=iso&tlng=en