"Combustion Synthesis of Advanced Materials"

Outline

Combustion Synthesis

CS and Gravity

        Role of Gravity on CS

Microgravity Experiments:
 Parabolic Flights

Slide 7

Experimental Setup

Objectives

Research Direction 1

Systems Investigated

Experimental Conditions

Quenching Experiments

Microstructural Transformations
 in CS Wave

"Length of Characteristic Microstructural Zones"

Characteristic Microstructures
of Composites

Kinetics of Particle Growth

Comparison with Other Methods

Summary

Research Direction 2

Experimental Conditions

Slide 22

Combustion Velocity in
Different Ambient Atmospheres

Combustion Velocity under
Different Gravity Conditions

Ignition Temperature
of Al clad by Ni Particles

Slide 26

Summary

Research Direction 3

INITIAL SAMPLES, CS-BIOALOY
& MACHINED SPECIMENS FOR TESTING

Thermite-type  Reactions

Combustion of Thermite Systems

Experimental Conditions

Temperature-Time History

Combustion Velocity

Gravitational Sensitivity  I

Gravitational Sensitivity  II

Average Yield (%) of the Alloy in Different

Product Formation under
 Different Gravity Conditions

Sequence of Product Formation
 Normal Gravity Conditions

Microstructure Transformation
in the Reaction Zone

Summary

Concluding Remarks

Acknowledgements

Slide 44

Role of Natural Convection

Role of Natural Convection