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Dr Jun Liu

Dr Jun Liu

Lecturer

School of Engineering

Email
liuj118@cardiff.ac.uk
Telephone
+44 29208 79056
Campuses
Room E/3.19, Queen's Buildings, 5 The Parade, Newport Road, Cardiff, CF24 3AA
Users
Available for postgraduate supervision

Overview

I am a Lecturer and academic member of the Magnetics and Materials research groups.

My research interests are centred on correlating microstructures to the magnetic properties of soft magnetic materials. This includes but not limited to the following areas:

  • Non-destructive evaluation of microstructures of steels using electromagnetic and magnetic techniques;
  • Microstructural magnetic modelling
  • Microstructure and magnetic property characterisation
  • Finite Element modelling of electromagnetic sensor systems

Biography

I joined Cardiff University as a Lecturer in November 2020. Before that, I worked as a Research Fellow on a number of EPSRC and EU funded projects in the area of non-destructive evaluation of steel microstructure at University of Birmingham and then University of Warwick. I obtained my PhD in electrocrystallisation and electronic materials in 2010 at Loughborough University, my MEng in Materials Processing Engineering in 2003 and BEng in Welding in 2001, both at Harbin Institute of Technology in China.

Academic positions

  • 2020 - Present: Lecturer, School of Engineering, Cardiff University
  • 2014 - 2020: Postdoctoral Research Fellow, WMG, University of Warwick
  • 2010 - 2014: Postodctoral Research Fellow, School of Metallurgy and Materials, University of Birmingham

Committees and reviewing

  • Journal reviewer: 
    • Metallurgical and Materials Transaction A
    • Journal of Magentism and Magnetic Materials
    • Materials Science and Engineering A
    • NDT & E International
    • International Journal of Pressure Vessels and Piping
    • IEEE Sensors Journal
    • IEEE Transactions on Industrial Informatics
    • IEEE Access
    • Journal of Alloys and Compounds
    • Thin Solid Films
    • Physica Scripta
    • The International Journal of Advanced Manufacturing Technology
    • Sensors
    • Smart Materials and Structures Metals
    • Crystals
    • Metals

Publications

2021

2019

2017

2016

2015

2014

2013

2012

2009

2008

2007

2005

2004

Teaching

I currently teach part of the Electrical Technology module for first-year Mechanical Engineering students. 

Microstructural Magnetic Modelling

Microstructure determines the magnetic properties of magnetic alloys as it determines the mechanical properties of structural alloys. There are well-established theories and widely accepted empirical laws correlating microstructure with mechanical properties and even commercial simulation tools that can predict mechanical properties from microstructures. However, there are significant gaps of knowledge and modelling capabilities for the magnetic property counterpart. The current understanding to microstructure-magnetic property relationships in magnetic alloys is largely empirical, limited to some individual microstructural parameter and magnetic property, or only applicable to a limited range of values. There are few models or simulation tools reported for predicting magnetic properties from microstructures and fewer stillscarcer for the inversion, that is, predicting microstructures from magnetic properties. Our aim is to fill the gap by developing a microstructural magnetic modelling system for microstructre engineering and analytics of magnetic materials. 

An overview of my research in Microstructural Magnetic Modelling

Supervision

I am interested in supervising research students in the area of magnetic materials and applications including but not limited to: 

  • Magnetic materials characterisation, processing and applications
  • Magnetic non-destructive evaluation and testing
  • Magnetic hysteresis modelling
  • Finite Element modelling of electromagnetic systems
  • Microstructure - physical property - mechanical property relationships

External supervision: 

Co-supervisor (15%) for Ondi Mukherjee (PhD at University of Warwick) -- Simulation of Texture Development during Steel Processing (2019--Present)