Dross Reinforcement Particles
Alpha and Omega Composites, Inc.
Dross is a waste product in aluminum casting operations
Fine particles can be collected by separation processing:
- 80% Al2O3, 1.5% SiO2, 1.5% Al, 10% salts, 7% AlN
- Crystal structure is 40-60% beta alumina and 20-30% spinel
- Average particle size = 67 microns
- Density = 2.28 g/cm3
Cost estimated at $0.03/lb.