2019

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 […]

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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

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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,

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TMS 2019

March 25, 2019 / Conference / João Rezende

GTT was represented at the TMS 2019! The TMS (https://www.tms.org/TMS2019) is a huge annual conference, organized by the Minerals, Metals and Materials Society in the United States. This year the conference took place in San Antonio, Texas. Dr. Stephan Petersen gave a presentation at one of the symposia of REWAS 2019, which focuses on Manufacturing

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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

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Users’ Meeting 2019

March 6, 2019 / GTT, GTT Workshops / João Rezende

Our users’ meeting from 26th to 28th of June is approaching quickly! The users’ meeting itself starts on the 26th of June at 13:00h and goes until 12:00h on June 28th. Many colleagues from the industry and academia already registered to contribute with presentations and we are looking forward to the many interesting talks showing

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Ex Mente Technologies and GTT-Technologies announce the first commercial release of ChemAppPy

February 1, 2019 / ChemApp, ChemAppPy, Ex Mente / Stephan Petersen

Ex Mente Technologies and GTT-Technologies are excited to announce the first commercial release of ChemAppPy! ChemAppPy is a Python package that makes ChemApp, the thermochemistry library developed by GTT-Technologies, available in Python 3.6+. It includes additional tools that make thermochemical calculations easier and quicker to do. GTT are the original developers of ChemApp, a powerful

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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

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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

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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

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