Dr. rer. nat. D. Kobertz – Forschungzentrum Jülich GmbH, Germany

Dr. rer. nat. D. Kobertz

Institute of Energy and Climate Research (IEK)
Microstructure and Properties of Materials (IEK-2)  

Forschungzentrum Jülich GmbH, Germany 

Abstract Download (PDF)

Professional experience

02.1978 – today
































23. – 25.10.2017


11. – 16.06.2017

31.05. – 05.06.2015

14. – 16.04.2015


26. – 31.05.2013

02. – 08.06.2012

22. – 27.05.2011
07. – 11.12.2010

17. – 22.05.2009

06. – 08.02.2008

02. – 05.02.2008

06. – 11-05.2007

06. – 12.05.2006

22. – 27.05-2005

30.5. – 04.06.2004

25. – 30.05.2003

May 1985





Scientific officer at Forschungszentrum Jülich
(former KFA Jülich)


Main topics are experimental work and basic research in
science and industrial cooperation:

·           high temperature chemistry,

·           thermodynamics,

·           thermal analysis,

·            calorimetric measurements


in the fields of:

·           alloys for high temperature materials

·           amalgams and metal halide systems for lamp industry

·           aluminates for nuclear power safety precautions and waste management

·           oxide systems for solid oxide fuel cells

·           sulfate salt systems in combustion processes

·           salt systems for thermal energy storing


Experimental and theoretical knowledge in:

·           Knudsen Effusion Mass Spectrometry (KEMS)

·           Differential Thermal Analysis with simultaneous gravimetry (DTA/TG)

·           Skimmer Coupled Differential Thermal Analysis (SkMS)

·           Calorimetry (DSC, Drop)

·           X-Ray Diffraction

·           μ-Spectroscopy

·           Transpiration Technique

·           Isopiestic Method

·           Preparation Techniques like Sol-Gel, Tracer


Different publications and conference participations as author and co-author


Reviewer of scientific papers in different journals


Chief of Laboratory

Two lectures and chair at KEMS Workshop 2017, Oct. 23rd – 25th, 2017, Jülich, Germany

Lecture at CALPHAD XLVI June 11st -16th, 2017, Saint-Malo, France

Lecture at CALPHAD XLIV May 31st – Jun. 05st, 2015 Loano, Italy


Lecture at Selber Kopplungstage (SKT 2015) 14.04.2015 bis 16.04.2015, Selb, Germany

Lecture and Poster at CALPHAD XLII May 26th – 31st, 2013 San Sebastian, Spain

Poster at CALPHAD XLI June 02rd – 08th, 2012 Berkeley, California

Lecture at CALPHAD XL May 22nd – 27th, 2011 Rio de Janeiro, Brazil

Invited Lecture at 3nd DAE-BRNS International Symposium on Materials Chemistry, December 7-11, 2010, Mumbai, India

Lecture at CALPHAD XXXVII May 06th – 12th, 2009 Prague, Czech

Invited Lecture at Workshop THERMANS 2008, IGCAR, Kalpakkam, Tamil Nadu

Invited lecture at THERMANS 2008, IGCAR, Kalpakkam, Tamil Nadu

Lecture at CALPHAD XXXVI May 06th – 12th, 2006 Pennsylvania State University, Pennsylvania, USA

Lecture at CALPHAD XXXV May 06th – 12th, 2006 Haifa, Israel

Lecture at CALPHAD XXXIV May 22nd – 27th, 2005 Maastricht, The Netherlands

Lecture at CALPHAD XXXIII May 30th – 4th, 2004 Krakow, Poland

Lecture at CALPHAD XXXII May 25th – 30th, 2003 Montreal, Canada

Lecture at 4th IUPAG Conference HTMC, Rom


Special skills:

·           Implementation of thermal analysis and calorimetry in our group

·           Hardware modification in DTA/TG system of Netzsch STA 429

·           Authority to develop our Knudsen Effusion Mass Spectrometer (KEMS MAT271) together with Finnigan MAT, Bremen.

·           Substantial modification in Mass Spectrometer and Knudsen-cell design

·           Under my care Software development for automatic KEMS MAT271

·           Computer and Software


Temporary employment abroad         

01.1985 – 03.1985

Guest Scientist in India

IGCAR, Kalpakkam







06.2001 – 06.2004




07.1972 – 03.1974

07.1970 – 06.1972
03.1963 – 07.1970
03.1958 – 03.1963


August Chełkowski Institute of Physics, University of Silesia, Katowice, Poland

Doktor-Prüfung, Thermodynamic studies of pure and of manganese doped lead titanate and sodium niobate with perovskite structure

Degree: Dr. rer. nat. (Ph.D.)

Wroclaw University of Technology, Chemistry Faculty, Poland

Degree: Master of Science (M.Sc) (1.15, very good)

Fachhochschule Aachen, Abt. Jülich
(Aachen University of Applied Science, Division Jülich, Chemistry); Degree: Diplom Ingenieur (Dipl. Ing)

Military service  (Air Force)

Fachoberschule für Technik, Düren (Technical college)

Naturwissenschaftliches Gymnasium Düren (Science related grammar school)

Katholische Volksschule Pier (Elementary school)





Selected Publications out of >50


D Kobertz, M Müller, A Molak, Thermodynamic Vaporization and Caloric Studies on Sodium Niobate, CALPHAD: Computer Coupling of Phase Diagrams and Thermochemistry, 48, 55-71 (2015)


D Kobertz, M Müller, A Molak, Thermodynamic Vaporization and Caloric Studies on Lead Titanate, , CALPHAD: Computer Coupling of Phase Diagrams and Thermochemistry, 46, 62-79 (2014)


D Kobertz, M Müller, Experimental Studies on NiSO4 by Thermal Analysis and Calorimetry, CALPHAD: Computer Coupling of Phase Diagrams and Thermochemistry, 45, 55-61 (2014).


Kobertz D., Müller M., Investigations At High Temperature with Molecular Beam Mass Spectrometry Under Equilibrium and Kinetic Conditions, ECS Transactions, 46, 113-126 (2013)


D Kobertz, Knudsen Effusion Mass Spectrometry – A Powerful Tool for Inorganic Gas Phase Analysis and Thermodynamic Studies In:  DAE – BRNS: 16th National Symposium and Workshop on Thermal Analysis IGCAR, Kalpakkam; 2008, pp. 96 – 104


D Kobertz, M Miller, U Niemann, L Singheiser, K Hilpert, Study of the NaBr-DyBr3 phase diagram by differential thermal analysis, Thermochimica Acta, 430, 73-7 (2005)


D Kobertz, K Hilpert, J Kapala, M Miller, Phase diagram, thermodynamic activities and thermodynamic modelling in the NaBr-DyBr3 system, Calphad-Computer Coupling of Phase Diagrams and Thermochemistry, 28, 203-8 (2004)


A Matraszek, L Singheiser, D Kobertz, K Hilpert, M Miller, M Martin, Thermodynamic investigations of Sr- and Mg-doped lanthanum gallate by Knudsen effusion mass spectrometry and defect chemical analysis, Phys Chem Chem Phys, 5, 3042-52 (2003).


K Hilpert, D Kobertz, V Venugopal, M Miller, H Gerads, FJ Bremer, H Nickel, Phase diagram studies on the Al-Ni system, 42A, 1327 (1987)


K Hilpert, H Gerads, D Kobertz, Sorption of Strontium by Graphitic Materials, Ber Bunsen Phys Chem, 89, 43-8 (1985)