Thermodynamics and Phase Diagrams

Slides:



Advertisements
Similar presentations
The thermodynamics of phase transformations
Advertisements

Exsolution and Phase Diagrams Lecture 11. Alkali Feldspar Exsolution ‘Microcline’ - an alkali feldspar in which Na- and K-rich bands have formed perpendicular.
Phase Diagrams Continued
MSEG 803 Equilibria in Material Systems 12: Solution Theory
Lecture 13: Phase diagrams 2 PHYS 430/603 material Laszlo Takacs UMBC Department of Physics.
Lecture 18Multicomponent Phase Equilibrium1 Thermodynamics of Solutions Let’s consider forming a solution. Start with X A moles of pure A and X B moles.
CHAPTER 8 Phase Diagrams 8-1.
Christine Musich Science April 2013 Misconceptions: Is Dissolving the Same as Melting?
Chapter 6 Interpretation of Phase Diagrams Phase diagrams summarize in graphical form the ranges of temperature (or pressure) and composition over which.
∆H = H final - H initial The stoichiometric coefficients in thermochemical equations must be interpreted as numbers of moles. 1 mol of C 5 H 12 reacts.
Lead-free Solder Alloys: Enthalpies of formation of (Ag,Cu,Ni)-Sn binary alloys U. Saeed, H. Flandorfer, H. Ipser Institute of Inorganic Chemistry / Materials.
Chapter Outline: Phase Diagrams
Changes of State Solid to Liquid to Gas and Back.
Notation convention Let G' stand for total free energy and in a similar fashion S', V', H', etc. Then we will let = G'/n represent the free energy per.
Lecture 9 Phase Diagrams 8-1.
Change of State and Laws of Thermodynamics
Microstructure and Phase Transformations in Multicomponent Systems
Solid - Liquid Phase Diagrams
Phase equilibrium Plan 1.Phase equilibrium. Gibb’s phase rule. 2.Diagram of the state for a one component system 2.Diagram of the state for a one component.
Temp ( o C) Phase Change Diagram Practice Use the following graph of Temperature vs. Heat for 10 g of compound “X” to answer the questions: 500.
CHE 333 Class 3 Phase Diagrams.. Why Phases? Few materials used in pure state – gold, copper, platinum etc for electrical properties or coatings. Most.
PHASE EQUILIBRIA. Ternary Systems Types:  (Liquid –Vapor) ternary systems  (Liquid – Solid ) ternary systems.
Mechanical & Aerospace Engineering West Virginia University 9 – Phase Diagram (2) (Phase Reactions)
Properties of Ionic and Covalent Compounds
10.5 Liquid and Solid Standard States
1 The Reaction Program. 2 Add species windows by clicking + Enter a balanced reaction. Leave Phase as most stable. Press Next Units can be changed from.
Chapter 17 Stability of minerals. Introduction Kinetics (the rate of reactions): Kinetics (the rate of reactions): –Reaction rates slow down on cooling.
Exsolution and Phase Diagrams Lecture 11. Alkali Feldspar Exsolution ‘Microcline’ - an alkali feldspar in which Na- and K-rich bands have formed perpendicular.
The shape of the two-phase lens typical of most metals Note: 1.Entropy of phase transformation is, in a decrease order, of vaporization, melting and solid-solid.
 Course number: 527 M1700  Designation: Graduate course  Instructor: Chao-Sung Lin, MSE Dept., (office), (lab)  Office hours: 2 ~
Phase Diagrams Continued
Solid State Reactions Phase Diagrams and Mixing
Phase diagrams of unary and binary systems
Material Science & Metallurgy Non Equilibrium Cooling
Materials Engineering
Phase Diagrams 8-1.
Chapter 5 Phase Equilibria
Chapter 9: Phase Diagrams
Introduction to Materials Science and Engineering
 real oxide systems 1) CaO-TiO2-SiO2 in Fig 5.60 of FAHummel’s book.
Chapter Outline: Phase Diagrams
Phase Diagrams.
Solid Solution Thermal Equilibrium Diagram
Phase Diagrams for Surface Alloys
Fully Miscible Solution
Phase diagrams by thermodynamic calculations
Phase Change – depends on heat energy
Hemin Hasary MSc. Pharmaceutical sciences
Chapter 4 Revision.
Quiz 1. Find the concentration of Cu+ in equilibrium with CuBr(s) and M Br-. The Ksp for CuBr is 5x10-9. Show your work. A M B. 5 x 10-8.
Phase Diagrams.
Solidification of Metals and Alloys
Image Bank Chapter 10 Preview Diffusion Unit Cells Crystalline Solids
CHE 333 Class 5 Phase Diagrams. Prov08.
2/16/2019 9:54 PM Chapter 9 Phase Diagrams Dr. Mohammad Abuhaiba, PE.
Single solid phase binary alloy -1
CHAPTER 8 Phase Diagrams 1.
CHAPTER 8 Phase Diagrams 1.
Heating Curves and Phase Diagrams
CHAPTER 8 Phase Diagrams 1.
Working with Phase Diagrams
Phase diagrams of pure substances
IE-114 Materials Science and General Chemistry Lecture-10
Phase Diagram.
Chapter Outline: Phase Diagrams
T l s Full solubility liquid Phase diagram solid g(n) Gibbs Energy
Three component systems
C = 2 Gibbs phase rule F = C – P + 2 Pressure Temp. Comp. xA F = 3
The simplest picture of the atomic structure of metallic crystals is one of spherical ions closely packed and existing in a ‘sea’ of conduction electrons.
Presentation transcript:

Thermodynamics and Phase Diagrams Alexandra Navrotsky

Phase Separation

Other exsolution topologies

Complete solubility in both high T and low T phases: vapor-liquid or liquid-solid equilibrium

Complete solubility in liquid, none in solids: eutectic

Eutectic, Solid Solution, Free Energies

Development of limited solid solubility acd a eutectic from a solid solution

Development of compound formation from a eutectic

Au-Cu: ordered compounds at low T, complete solid solution at highT

Au-Cd: stable compounds to the liquidus

Au-Na: stable stoichiometric compounds

Au-Ni: miscibility gap almost to the solidus

Au-Co: different structures, no compounds, eutectic, positive deviations from ideality in melt also

Ternary system: triangle representation

Ternary exsolution topologies

Ternary eutectic

Ternary Eutectic

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.