• University of Birmingham Featured PhD Programmes
  • University of Glasgow Featured PhD Programmes
  • Aberdeen University Featured PhD Programmes
  • University of Cambridge Featured PhD Programmes
  • University of East Anglia Featured PhD Programmes
  • Castelldefels School of Social Sciences Featured PhD Programmes
  • Cardiff University Featured PhD Programmes
Ludwig-Maximilians-Universität Munich Featured PhD Programmes
EPSRC Featured PhD Programmes
Imperial College London Featured PhD Programmes
Imperial College London Featured PhD Programmes
University of Reading Featured PhD Programmes

Novel powder materials for additive manufacturing (3D-Printing)

This project is no longer listed in the FindAPhD
database and may not be available.

Click here to search the FindAPhD database
for PhD studentship opportunities
  • Full or part time
    Dr C Sinka
    Prof H Dong
  • Application Deadline
    No more applications being accepted
  • Competition Funded PhD Project (Students Worldwide)
    Competition Funded PhD Project (Students Worldwide)

Project Description

BACKGROUND AND IMPORTANCE

Additive manufacturing (AM) is a key future disruptive technology for manufacturing 3D objects. AM is already being used to fabricate a range of products in the, biomedical, automotive and aerospace sectors in which the proposing supervisors have specific expertise.

Additive manufacturing is also called 3D printing technology where powders (ranging from titanium to polymers) are deposited in thin layers, and fused together using lasers. A component is built-up layer by layer and the details of the deposition of a thin layer of powder (having a thickness of tens to hundred microns) influences directly the product quality, including density, strength and surface finish. All stages of the process from layer deposition to selective melting present challenges, however, the limiting factor for increasing manufacturing rates is represented by powder deposition.

The physical phenomena, including flow, handling and dosing of particulate materials is subject to continued research due to widespread industrial importance. Leicester’s unique contribution to the field is the consideration of air pressure effects that influences powder flow and segregation as described in a recent PhD work (reference below).

RESEARCH HYPOTHESIS

A major barrier to the widespread adoption of AM, however, is to minimise material segregation during deposition. Our hypothesis is to minimize segregation through an optimized powder flow by controlling air pressure, particularly for formulations that include fine particulates prone to air-induced segregation. Fundamental understanding of packing mechanisms, including air pressure effect will then be used for powder design and process optimisation.

METHODOLOGY

We will use coupled DEM-CFD (Discrete element method – Computational fluid dynamics) for multi-component mixtures where each phase is described by distinct powder properties (e.g. size distribution, shape, density etc.). The feasibility of the approach has been demonstrated in previous work at Leicester. During the project you will also collaborate with other universities and research institutions.

Funding Notes

For UK Students: Fully funded College of Science and Engineering studentship available, 3 year duration.

For EU Students: Fully funded College of Science and Engineering studentship available, 3 year duration

For International (Non-EU) Students: Stipend and Home/EU level fee waiver available, 3 years duration. International students will need to provide additional funds for remainder of tuition fees.

Please direct informal enquiries to the project supervisor.

If you wish to apply formally, please do so via: https://www2.le.ac.uk/colleges/scieng/research/pgr and selecting the project from the list.

References

Reza Baserinia. Flow of fine and cohesive powders under controlled air pressure conditions. PhD thesis, 2017, University of Leicester.


Cookie Policy    X