 
Summary: Elastic Properties and Structure of Interpenetrating
Boron Carbide/Aluminum Multiphase Composites
Salvatore Torquato,,§
Christofer L. Y. Yeong,,§
Mark D. Rintoul,,§
David L. Milius,*,,§
and
Ilhan A. Aksay*,,§
Department of Civil Engineering and Operations Research, Department of Chemical Engineering, and
Princeton Materials Institute, Princeton University, Princeton, New Jersey, 085445263
We study the elastic moduli and structure of boron car
bide/aluminum (B4C/Al) multiphase composites using rig
orous bounding and experimental characterization tech
niques. We demonstrate that rigorous bounds on the
effective moduli are useful in that they can accurately pre
dict (i) the effective elastic moduli, given the phase moduli
and volume fractions, or (ii) the phase moduli (volume frac
tions), given the effective moduli and phase volume frac
tions (moduli). Using the best available rigorous bounds on
the effective elastic moduli of multiphase composites involv
