Hypothetical Phase Diagram

Question

1.A hypothetical three component system has a composition of 24% A, 40% B and 36% C. Plot this composition in a Roozeboom diagram.

2. Draw (illustrate) a hypothetical phase diagram incorporating the following salient features:

a. presence of eutectic point

b. presence of peritectic point

c. compound formation

Label the axis and the points. From your diagram, estimate the composition of your new compound.

3.Give 10 examples of an application of the Lever Rule.

Answer 1

Roozeboom Diagram: Plot (24% A, 40% B, 36% C) inside the ternary triangle.

Phase Diagram: Include eutectic, peritectic points, and compound formation. Label axes and estimate compound composition.

Lever Rule Applications:

1. Solid-liquid fractions in alloys.
2. α/β phase ratios in metals.
3. Oil-water emulsions.
4. Vapor-liquid in distillation.
5. Eutectic solidification.
6. Metallurgical phases.
7. Mineral content in rocks.
8. Gas-solid in catalysts.
9. Solder alloy proportions.
10. Polymer-solvent ratios.