João Rezende

How do I find out if (and where) a certain substance is included in a thermochemical database?

Sometime ago a customer asked me how to find out if Ca2SiO4 is included in a certain database. Since the answer to this question can be really useful for customers in general, I decided to write this blog on the subject. We will define a substance with a defined chemical composition as a chemical species. …

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GTT Users’ Meeting 2020 will be a Webinar

GTT's Logo

GTT-Technologies yearly invites users of its software family to join the GTT Users’ Meeting. Because of the CoViD-19 Pandemia, the usual face-to-face meeting will exceptionally not take place this year. Feedback from our customers made clear to us that there is a strong interest in alternative formats of the GTT Users’ Meeting. Therefore, we are …

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Hume-Rothery prize awarded to Klaus Hack

GTT's Logo

We at GTT are very happy that Klaus Hack was awarded the Hume-Rothery Prize 2020. This prize is awarded every year by the Institute of Materials, Minerals and Mining of the United Kingdom in recognition of distinguished achievements concerned with phase relationships in metallic materials or non-metallic materials of metallurgical interest. Please check https://www.iom3.org/iom3-awards. Congratulations …

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FactSage in distance learning and home-office use

To enable academic institutions who rely on the use of FactSage in classroom instruction to students during the coming months, GTT would like to help you make the transition to “distance learning” education easier. If you normally use a FactSage server/client installation at your institute to organize your course that includes hands-on training with FactSage, …

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

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

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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TMS 2019

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

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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