FactSage Archives - Page 4 of 5

Minimization of copper losses to the converter slag through a boron oxide addition

December 20, 2019 / FactSage, phase diagram module, Process Metallurgy / João Rezende

The loss of copper in the converting process through its incorporation to the converter slag represents a major problem in the copper metallurgy. There are two important mechanisms for this phenomenon: the physicochemical and the mechanical one. The mechanical mechanism, i.e. the mechanical entrapment of matte or of metallic copper inside the slag, is by […]

Minimization of copper losses to the converter slag through a boron oxide addition Read More »

3D Mapping of Gibbs Energy Diagrams onto Phase Diagrams

November 27, 2019 / FactSage, Phase Diagram Module / João Rezende

Mats Hillert has shown [*] that what is called a Phase Diagram is derivable from a projection in a so-called Property Diagram. The (molar) Gibbs Energy as the property is plotted along the z-axis as a function of two other variables x and y. For binary systems, for example, T equals y and the mole

3D Mapping of Gibbs Energy Diagrams onto Phase Diagrams Read More »

Automated input and output in FactSage – Part II

April 18, 2019 / Equilib Module, FactSage / João Rezende

In the 2nd part of this blog post, we will see how to export the data we generated in the Part I to Excel. Let us start with the Results window from the last blog. On the menu bar, we click on “Output”->”Save or Print”->”Save or Print As” Figure 1 A window will pop up,

Automated input and output in FactSage – Part II Read More »

Automated input and output in FactSage – Part I

March 15, 2019 / Equilib Module, FactSage / João Rezende

Tabular input for automated calculation with FactSage.

A customer has asked me: “Is it possible to export/import data to and from FactSage? For instance, I would like to do a series of calculations for different initial chemical compositions of the system and it would be very useful to import all the compositions automatically from an Excel table into FactSage”. Yes, it is

Automated input and output in FactSage – Part I Read More »

From molar Gibbs energy functions to phase diagrams

January 29, 2019 / Equilib Module, FactSage, FTlite, Phase Diagram Module / João Rezende

In a series of posts, we will focus on the relation between phase diagrams, Gibbs energy functions and activities. Let us begin with the Al-Cu phase diagram at a temperature of 500 °C. In this blog post we will work exclusively with the FactSage Education Package. Let us suppose we have generated an Al-Cu phase-diagram

From molar Gibbs energy functions to phase diagrams Read More »

Including extra data points in FactSage figures

January 18, 2019 / Equilib Module, FactSage, General / João Rezende

Inserting extra points on diagrams - with legends

A customer has asked me: “How can I include an experimental point on a figure generated in FactSage ?”. The procedure is relatively simple. Suppose that you have generated a curve in FactSage like the one below. Representing the Molar Gibbs Energy of the γ phase in the Fe-C system at 1000°C as a function

Including extra data points in FactSage figures Read More »

What is the difference between Fact Pure Substances and SGPS databases?

January 15, 2019 / Data, Databases, FactSage / João Rezende

difference between FactSage and SGPS on the periodic table

I have been asked by a potential customer: “Do I need the Fact Pure Substances or SGTE Pure Substances database?” The answer is: It depends. The two databases are both collections of (normally published) thermochemical data. The Fact Pure Substances database FactPS is maintained by our co-developer of FactSage, Thermfact/CRCT, Polytechnique Montreal. It is generally

What is the difference between Fact Pure Substances and SGPS databases? Read More »

Example for a FactSage calculation of a non-equilibrium process

November 29, 2018 / Microstructure Control, Phase Diagram Module / João Rezende

It is a common misconception that thermodynamic calculations can only be used for processes that are in equilibrium. In fact, there is a lot to learn from an Integrated Thermodynamic Databank System like FactSage even if you are far away from equilibrium! As example we consider the popular Fe-C system: If you choose all phases

Example for a FactSage calculation of a non-equilibrium process Read More »

A hands-on example for a phase-diagram-module calculation

November 29, 2018 / Phase Diagram Module / João Rezende

FactSage contains many modules. The major ones for daily work are Equilib and Phase Diagram. Phase Diagram permits the calculation of phase diagram sections for systems with any number of components. Components can be elements, compounds or even arbitrary compositions. For a phase diagram calculation, first the components of interest have to be defined. Then, the possible

A hands-on example for a phase-diagram-module calculation Read More »

A hands-on example for an equilibrium-module calculation

November 29, 2018 / Equilib Module / João Rezende

FactSage contains many modules. The major ones for daily work are Equilib and Phase Diagram. In the Equilib module, global Gibbs energy minimization is used to determine the equilibrium state of a complex chemical system defined by its chemical composition, temperature and pressure. Equilib is easy to use: First, the chemical system has to be defined

A hands-on example for an equilibrium-module calculation Read More »

FactSage