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About the Voith Group

The Voith Group is a global technology company. With its broad portfolio of systems, products, services and digital applications, Voith sets standards in the markets of energy, paper, raw materials and transport & automotive. Founded in 1867, the company today has around 21,000 employees, sales of € 4.9 billion and locations in over 60 countries worldwide and is thus one of the larger family-owned companies in Europe.

The Voith Group | Division Turbo offers you an

Master's Thesis: A material study for type IV H2 vessel liners in cryo-compressed conditions 
Job ID 71921 | Location Heidenheim or Garching


Hydrogen-based drives for heavy-duty transport solutions are essential elements for the decarbonisation of the economy. These commercial applications have high demands in terms of power and range, often in multi-shift operation around the clock. Purely battery-based drives are too heavy, take too much time to recharge and may be even more expensive to purchase.
In addition to the already proven solutions for hydrogen buses with compressed hydrogen (CGH2) and Type III and Type IV compressed gas storage systems made of composite materials (typical maximum working pressure p_NWP of 35 MPa), cryogenic hydrogen, in liquid form (LH2) or cryo-compressed (CCH2), represents an attractive variant. Arguments in favour of cryogenic pressure storage include higher storage densities than compressed warm hydrogen, the potentially more efficient refuelling process, the avoidance of evaporation losses in intermittent operation, and possibly variable filling options (LH2, CGH2 or CCH2).
Type IV vessels are among the most novel developments, and consist on a pressure vessel made of polymeric liner fully-wrapped with a fiber-resin composite. The port is metallic and integrated in the structure (boss). If the material behavior of polymeric material in cryogenic-like conditions could be understood in depth, they can have potential of being the next solution for heavy duty transport industry.

Your tasks

  • Analysis of behavior during life cycle of the tank, and peak pressure/temperature conditions.
  • Translation of load cases of liner material. With this, we can get a better determination of the testing program, in order to test such load cases.
  • Look at the benchmark and state of the art applications for cryogenic and warm gas storage. From this study, select the materials to be tested. 
  • Study of possible additives to the candidate materials, to withstand the load case conditions.
  • Perform the test, and eventual material selection.
  • Further analysis of the possibility of liner manufacturing with the selected materials.


Your profile

  • Mechanical Engineering student with focus on material science, of Material Science student, ideally with experience in polymer materials (e.g. Internships, HiWis, etc.)
  • Beneficial: experience with Hydrogen technology (preferably cryogenic conditions)
  • Master's Thesis with a duration of 6 months (potentially extensible)
  • “Out of the box"/Researcher mindset, given that the thesis would involve both testing and prior research of possible materials


You can expect

  • Support from your mentor and a team to help you get started.
  • Job counseling and regular feedback for your professional and personal development.
  • Exciting work opportunities and individual projects that provide you with insights into the operation of an international company.
  • Flexible working hours and attractive compensation.
  • Being part of our trainee network and staying in contact with other trainees through regular meetings.

Apply now via our web portal with your cover letter, CV and references.


The J.M. Voith SE & Co. KG | VTA is looking forward to your application!


Your personal contact
J.M. Voith SE & Co. KG | VZS
Global Business Services HR EMEA
Talent Acquisition Team • Johannes Hummel • Tel. +49 7321 37 2042 
Job ID 71921