18 - 1 ECE331 Phase Diagrams (concepts) 1. Phase A...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 ECE331 Phase Diagrams (concepts) 1. Phase A homogeneous portion of a material system that has uniform physical and chemical properties uniform physical and chemical properties. 2. Phase Boundary Boundaries that separate phases. So acrossing a phase boundary, there will be abrupt change in physical or/and chemical characteristics. Lu Single Phase System Homogeneous Systems with Two or More Phases - Heterogeneous ECE331 Phase Diagrams (concepts) 1. Phase Equilibrium Free energy is minimized or physical and chemical characteristics are time independent stable ) characteristics are time independent ( stable ). 2. Phase Diagram A diagram for a material system which reprensents the relationships between temperature, compositions, Lu quantities of phases at equilibrium. 2 ECE331 Phase Compositions 1. Single Phase Region Same with alloy composition. 2. Two-Phase Region Draw a tie-line; Two intersections to phase boundaries; Determine the corresponding compositions....
View Full Document

This note was uploaded on 04/09/2010 for the course ECE 331 taught by Professor Rajan during the Spring '09 term at Ohio State.

Page1 / 7

18 - 1 ECE331 Phase Diagrams (concepts) 1. Phase A...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online