Welcome to GTT

"The 20th century was the century of experiments in materials engineering. The 21st century will be the century of modelling."
GTT-Technologies has specialized for decades in collecting the fruits of experimental work in the form of Gibbs energy databases and in the software that is needed to make use of them - both in the form of user-friendly software dedicated to the analysis of complex equilibria and programming libraries that can be easily integrated into Integrated Computational Materials Engineering (ICME) approaches.
The employed methodology for data evaluation (CalPhad) has led to comprehensive, combinable databases that can be used for various applications.
Using our software and databases will allow you to design new materials and processes, direct an experimental programme, analyse pilot plant or production data and direct process changes and optimize yields. In short: it will allow you to save time and money!
Have a look at our software, the data and our consulting abilities. Use our newsletter to keep up to date with GTT-Technologies and contact us in case of questions!


FactSage 7.1 is now ready to use! New features include the world's first calculation abilities of Scheil-Gulliver Constituent Diagrams (see the last talk at the 2016 user meeting) and Aqueous Phase Diagrams. Have a look at the description about What's new in... Read More

Post date: 30.01.2017 - 14:33

On January 17th and 18th Klaus Hack was one of the invited speakers at the first Hume Rothery Seminar, organised by the Materials Chemistry Committee of the Institute of Materials, Minerals and Mining at Derby, UK.

Klaus participated with two oral presentations on Phase Diagrams as well as Macroscopic Process Simulations and Computer Aided Process Developement. In addition live... Read More

Post date: 25.01.2017 - 10:28

We are very pleased to report that Gunnar Eriksson, the programmer of the Gibbs energy minimization code in all our products, including FactSage, ChemApp and SimuSage, is the 2017 J. Willard Gibbs Phase Equilibria Award recipient. He is cited for:

Development of software for calculation of multicomponent, multiphase chemical equilibria, and phase diagrams of various types,... Read More

Post date: 05.01.2017 - 10:46

One of the most common New Year’s resolutions is to be do more sports, or in general to be more active. Read this paragraph to learn what happens to a phase diagram if a phase becomes “more active”!

Cementite (Fe3C) is a metastable phase in the Fe-C phase diagram, meaning it only forms if the precipitation of pure graphite is inhibited. How... Read More

Post date: 03.01.2017 - 17:14

We just received the author's copy of the Handbook of Software Solutions for ICME. The book edited by Georg Schmitz and Ulrich Prahl is a compilation of overviews of available software tools that can be used for ICME (Integrated Computational Materials Engineering). Klaus... Read More

Post date: 30.11.2016 - 15:45