Vacancy No. 19-2021

PhD Position (f/m/d): “Effects of ionizing radiation on the corrosion of ferritic steels in the presence and absence of inhibitors”

Job description

The water jet abrasive suspension cutting technique (WASS, “Wasser-Abrasiv-Suspensions-Schneidverfahren”) is applied in the dismantling of nuclear power plants. This technique produces radioactive grain mixtures of abrasive and steel in water suspensions as secondary waste. It has to be considered that grains of ferritic steel (which is the construction material of the reactor pressure vessel) will undergo fast corrosion. In the framework of this project, a separation device combining mechanical and magnetic filtering will be constructed and installed in a glove box aiming at separating these grain mixtures in fractions of reusable abrasive and of steel grains to be finally disposed of. The final goal of the project is to minimise the amount of radioactive secondary waste. The planning and implementation of the separation device in the control area of KIT-INE will be carried out together with scientific, technical and industrial project partners. The focus of this doctoral thesis is to investigate the effects of ionizing radiation on the corrosion of ferritic steel grains in the presence and absence of appropriate corrosion inhibitors. You will run experiments using corrosion inhibitors both in the presence and absence of a radiation field and evaluate the influence of the inhibitors as well as radiation chemical effects on the corrosion process. For the analysis of the separated grain fractions and the effects of the corrosion inhibitors, various analytical techniques are available, i.e. element, electrochemical, microscopic, and spectroscopic techniques. In addition, a theoretical determination of radiation fields (Monte Carlo calculations) close to the separation device including radiation protection measures will be conducted. Analysis and evaluation of the data will be part of the work as well as the presentation of results and their publication in scientific journals. The position is suitable for part-time work only under certain conditions.

Personal qualification

You have:

A completed degree (Master's/Diploma) in chemistry, chemical engineering, process engineering, physics, geo sciences or related disciplines A systematic and independent way of working Interest and enjoy working in a team, A good command of written and spoken English Knowledge of handling radioactive substances, separation technology and working with glove boxes is desirable Basic knowledge of Monte Carlo calculations is advantageous

Organizational unit

Institute for Nuclear Waste Disposal (INE)

Starting date

01.09.2021

Contract duration

limited to 3 years

Application up to

30.06.2021

Contact person in line-management

For further information, please contact Dr. Frank Becker (phone: + 49 721 608-23401 / E-mail: frank.becker@kit.edu )

Application

Please apply online using the button below for this vacancy number 19-2021.
Personnel support is provided by 

Ms Ratzel
phone: +49 721 608-25544,

Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany

Recognized severely disabled persons will be preferred if they are equally qualified.