AdresseUniversity of Cologne
www.uni-koeln.de
The University of Cologne is one of the largest and most research-intensive universities in Germany, offering a wide
range of subjects. With its six faculties and its interfaculty centres, it offers a broad spectrum of scientific disciplines
and internationally outstanding profile areas, supported by the administration with its services.
The Granular Matter Group investigates the microscopic
mechanisms that determine the collective mechanical
properties of large particulate systems. Cement and concrete
are materials whose rheolo-
gy during hardening and whose final
material strength are dependent on mechanisms that are
studied in granular physics. In a current experiment on the
International Space Station (ISS), concrete samples were
mixed and will be analyzed back on earth after months of
hardening in microgravity.
YOUR TASKS
» Sample analysis of a recent ISS experiment by Ul-
trasound, CT, SEM
» Analysis of microstructure
» Calibration of Clinostat and Random Positioning Machi-
ne experiments based on ISS experiment results
» Theoretical analysis based on cement rheology
» Coordination of work between UzK and project part-
ners at University of Duisburg-Essen, DLR Cologne,
Lucerne University of Applied Sciences and Arts
» Publication of results in journals
» Presentations at conferences
YOUR PROFILE
» PhD in Physics, Materials Science or equivalent
» Experience with nondestructive testing
» Previous work on rheology and/or concrete microstruc-
ture
» Fluent in English, possibly German
» Capable of working in international, multidisciplinary
teams
» Resilient and adaptive to high levels of stress and
workloads
WE OFFER YOU
» An opportunity to participate in microgravity research
on ISS
» a diverse and fair working environment
» support in reconciling work and family life
» flexible working time models
» extensive advanced training opportunities
» occupational health management offers
» local transport ticket at a discount for UoC employees
» opportunity for remote work
The position is available as soon as possible on a full-time
basis (39,83 hours per week). It is limited for 15 months. If
the applicant meets the relevant wage requirements and
personal qualifications, the salary is based on remunera-
tion group 13 TV-L of the pay scale for the German public
sector.
The University of Cologne is committed to equal oppor-
tunities and diversity. Women are especially encouraged to
apply and will be considered preferentially in accordance
with the Equal Opportunities Act of North Rhine-Westpha-
lia (Landesgleichstellungsgesetz – LGG NRW). We also ex-
pressly welcome applications from people with disabilities /
special needs or of equal status.
Please send your application with proof of the
sought-after qualifications to https://jobportal.uni-koeln.
de.
The reference number is Wiss2208-18.
The application deadline is 30.09.2022.
If you have any questions, please contact
Prof. Dr. Matthias Sperl (matthias.sperl@uni-koeln.de).
Faculty of Mathematics and Natural Sciences
Postdoc Position: Material Science on Solidification of Concrete
Granular Matter Group, Institute for Theoretical Physics
