Thermal analysis extended by means of thermomechanical analysers

Since October 2020, two thermomechanical analysers have been in use at the Meissen Keramik-Institut, namely the Hitachi TMA 7300 and the TMA/SS7300 of SII NanoTechnology Inc. In principle, the devices work like pushrod dilatometers in vertical direction. In contrast to ordinary dilatometers, however, a defined compressive force of maximum 1.47 N (approx. 150 g) can be exerted on the specimen additionally. The load can be constant, linear or sinusoidal. Measurements up to maximum 1,500 °C are possible with a heating rate of 0.01 K/min – 100 K/min.

The method allows the deformation behaviour and/or stability behaviour to be investigated in the high temperature range under increasing or alternating compressive load. Thus, it can be examined, for example, to what extent high-temperature materials subjected to spontaneous forces show a lasting deformation at high temperatures and revert again to their initial state once the force is reduced. In addition, it is possible to determine dilatometric stress-shrinkage curves, coefficients of linear thermal expansion and characteristic temperatures, such as the transformation temperature and dilatometric softening point.


Related articles:

Issue 02/2023

Natural wealth from human hands

It’s a common saying: nature recovers if you leave it to its own devices. But it is not always that simple. In an age when humans have already irrevocably intervened in the earth’s biology, geology...

Issue 01/2023

Mass flow controllers for different automation concepts

Gas supply and furnace atmosphere safely under control For precise control of the gas atmosphere in hardening furnaces, the use of mass flow controllers (MFC) is state of the art. However, such heat...

Issue 02/2010

Röben invests in the future and sets new standards in brick production

1 Introduction With the famous push on the “red button”, Rhineland-­Palatinate’s Minister President Kurt Beck and Röben’s Managing Director Wilhelm-Renke Röben officially opened the new Röben...


Conditions for participation in the free lottery

1 Eligibility for participation is restricted exclusively to employees of heavy clay producers, and the minimum age for participation is 18 years. 2 Participation takes place online at the homepage...

Issue 3/2018 Prof. Dr.-Ing. Prof. e.h. Wilhelm Bauer

Industry 4.0 – impact and potential of the digital transformation

1 Industry 4.0 – living and working in the system of systems Networking via the internet as a central infrastructure is taking on increasingly significant dimensions in the context of Industry...