Dr Steve James Matthews

BE(Chem/Mats Eng), PhD (The University of Auckland)

Biography

Steven Matthews graduated with an undergraduate degree in the Department of Chemical and Materials Engineering, The University of Auckland, New Zealand in 1998.  He completed his PhD in the same department in 2004, working in the area of high temperature erosion resistant Cr3C2-based coatings deposited by high velocity thermal spray techniques.  From 2004-2007 he worked as an R&D Manager for Bekaert Advanced Coatings in Belgium, focusing on the design and manufacture of industrial sputtering targets.  He returned to New Zealand in late 2007 to take up an academic position as Materials and Manufacturing lecturer in the School of Engineering and Advanced Technology, Massey University.  In early 2015 he moved to The University of Auckland to take up a Senior Lecturer position within the Department of Chemical and Materials Engineering. From 2016-2019 he was concurrently the Director of the Research Centre for Surface and Materials Science (3 x SEM's and 1 X XPS).

Research | Current

Research Skillset

  • Thermal spray coating
    • Deposition techniques: HVOF/HVAF, shrouded plasma, arc spraying, combustion spraying
    • Materials of research: Carbide composites/Hardmetals (Cr3C2-NiCr, Cr3C2-CoNiCrAlY, WC-Co, WC-CoCr etc)
  • Powder preparation and characterisation
    • Crushing/milling spray drying, sieving, liquid phase doping
  • Metallographic preparation
    • Specialising in preparation of thermally sprayed coatings
  • Surface analysis
    • Scanning electron microscopy, especially with back scatter electron (BSE) imaging
    • X-ray diffraction, including use of Rietveld pattern fitting (MAUD software)
    • Optical microscopy

Areas of Research Focus

  • Development of novel coating functionalities to promote the settlement of marine shellfish to improve water quality and biodiversity
  • Understanding the role of surface functionality in the settlement and adhesion of mussels, oysters, corals and algae/seaweeds
  • Development of novel TiO2 based antifouling coatings
  • Development of novel carbide/oxide composite/hardmetal coatings through bespoke powder production and thermal spray processing
  • Novel heat treatment technologies for post processing of thermally sprayed coatings (laser heat treatment, microwave processing)
  • Development of a New Zealand based TiCN-Fe-alloy hardmetal industry (conventional pressed/sintered components as well as novel thermally sprayed coatings) exploiting NZ centric feedstock materials
  • Development of next generation abradeable ceramic coatings for turbine applications
  • Development of next generation corrosion resistant thermally sprayed coatings for Zn/Al galvanising baths
  • Novel coatings for industrial catalysis
  • Process-Structure-Property relationships in Fused Deposition Modelling/Fused Filament Fabrication 3D printing, with special emphasis on NZ-centric materials and applications

Interested in doing a Masters/PhD on one of these focus areas? See the section below "Postgraduate Supervision" for more details

 

Research Collaborations:

  • Surface Engineering for Advanced Materials – Swinburne University of Technology, Australia www.arcseam.com.au
  • Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Dresden, Germany
  • Massey University – 3D printing
  • The University of Waikato – Microwave heat treatment

Enquiries regarding potential collaborations in these areas are welcome at any time.

Teaching | Current

CHEMMAT 121 – Materials Science

CHEMMAT 204 - Materials

CHEMMAT 754 – Materials Performance Enhancement

Postgraduate supervision

Interested in doing a Masters/PhD on one of these focus areas?

 

COVID Update: Due to the current COVID travel restrictions, queries regarding postgraduate study are limited to people currently in NZ or returning NZ residents. Enquiries from overseas cannot be considered due to the closure of the border to international travel.

Prospective PhD Students

  • Enquiries for PhD study from students who meet grade point average (GPA) thresholds in their qualifying programme to be eligible for a UoA Doctoral Scholarship, are welcome at any time to discuss suitable projects of interest.
  • PLEASE NOTE: Unless otherwise advertised, these projects are NOT funded to support a stipend/scholarship.  Because of the duration of study and the need to focus on the research involved, only applicants with a guaranteed scholarship will be considered for these projects.

Need a scholarship?

  • The University of Auckland offers guaranteed scholarships to new domestic doctoral and international PhD applicants who meet grade point average (GPA) thresholds in their qualifying programme from a New Zealand university. You are considered a domestic student if you are a citizen of New Zealand or Australia, or a Permanent Resident of Australia or New Zealand.

For more information, see the link below:

https://www.auckland.ac.nz/en/study/scholarships-and-awards/scholarship-types/postgraduate-scholarships/doctoral-scholarships.html

Prospective Masters Students

  • Enquiries for Masters of Engineering (Research) are welcome at any time to discuss suitable projects of interest.
  • PLEASE NOTE: Unless otherwise advertised, these projects are NOT funded to support a stipend/scholarship.  Therefore, potential students would be required to support themselves for their costs of enrolment, accommodation etc for the duration of their study.
  • Scholarships may be available for applicants who meet grade point average (GPA) thresholds from their qualifying programme:

https://www.auckland.ac.nz/en/study/scholarships-and-awards/scholarship-types/postgraduate-scholarships/guaranteed-scholarships.html

 

Summary of Research Supervision

Postgraduate Students - Current

  • H. Chahal (PhD) - An Investigation into the Fabrication of Hydroxyapatite Using Plasma Processing
  • A Rehmani (PhD) – Massey University
  • S Bhaskar (PhD) - Development of a Thermal Spray Coated Catalyst for Catalytic Wet Oxidation of Organic Waste
  • S. Ha (Masters) - TiO2+Cu/Ag antifouling coatings
  • M. Ding (PhD)
  • Z. Zhou (PhD) - Preparation of Al-based Amorphous Coatings and Study on Damage Behavior

Postgraduate Students - Completed

  • Y. Zhang (PhD) - Understanding the Formation Mechanism of Plasma-sprayed Ni and Ni20Cr Splats through Experimental and Numerical Study
  • M. Awalini (PhD) - DEVELOPMENT OF A HYDROXYAPATITE COATING ON AZ31 MAGNESIUM ALLOY FOR USE IN BIODEGRADABLE IMPLANTS
  • Q. Xu (PhD) (The University of Waikato) - Synthesis, Microstructure and Mechanical Properties of Titanium with Controlled Levels of Porosity

Research Interns

  • J. Ansbro (2018) - Loughborough University, UK
  • T. Lynch (2018) - Loughborough University, UK
  • J. Spatzier (2012) – Fraunhofer Institute of Materials and Beam Technology, Germany

Final Year Research Students:

2020

  • K. Croasdale
  • A. Barry
  • H. Cumming
  • R. Kan
  • J. Chang
  • E. Spring

2019

  • E. van Bysterveldt
    • Journal paper in preparation
  • H. Lloyd
    • Journal paper in preparation
  • T. Sussex
    • Journal paper in preparation
  • H. Thakkar
    • Journal paper in preparation
  • S. Laycock
    • Journal paper in preparation

2018

  • F. O'Neil
    • Journal paper in preparation
  • L. Tomasi
    • Journal paper in preparation
  • P. Tangtrakulcharoen
    • Journal paper in preparation
  • P. Prasad
    • Journal paper in preparation

2017

  • M. Binny
  • R. Joseph
  • A. Remmington
  • G. Wang

2016

  • E. Lim
  • J. Woo
    • Conference paper: Matthews, S. J., Woo, J., & Daniel, J. (2017). Effect of nozzle-length, powder feed-rate and spray distance on HIPOJET® 2700 HVOF sprayed Cr3C2-NiCr coatings.. Paper presented at International Thermal Spray Conference & Exposition; ITSC 2017, Düsseldorf, Germany. 7 June - 9 June 2017.
  • J. Daniel
    • Conference paper: Matthews, S. J., Woo, J., & Daniel, J. (2017). Effect of nozzle-length, powder feed-rate and spray distance on HIPOJET® 2700 HVOF sprayed Cr3C2-NiCr coatings.. Paper presented at International Thermal Spray Conference & Exposition; ITSC 2017, Düsseldorf, Germany. 7 June - 9 June 2017.
  • H. Kwan

 

2015

  • S. Ruddell
    • Journal publication: Matthews, S., Asadov, A., Ruddell, S., & Berger, L.-M. (2017). Thermally induced metallurgical processes in Cr3C2 -NiCr thermal spray coatings as a function of carbide dissolution. Journal of Alloys and Compounds, 728, 445-463. 10.1016/j.jallcom.2017.08.246
  • M. Bhagvandas
    • Journal publication: Matthews, S., Bhagvandas, M., & Berger, L.-M. (2020). Creation of modified Cr3C2-NiCr hardmetal coating microstructures through novel processing. JOURNAL OF ALLOYS AND COMPOUNDS, 82410.1016/j.jallcom.2020.153868

Areas of expertise

Research Skillset

  • Thermal spray coating
    • Deposition techniques: HVOF/HVAF, shrouded plasma, arc spraying, combustion spraying
    • Materials of research: Carbide composites/Hardmetals (Cr3C2-NiCr, Cr3C2-CoNiCrAlY, WC-Co, WC-CoCr etc)
  • Powder preparation and characterisation
    • Crushing/milling spray drying, sieving, liquid phase doping
  • Metallographic preparation
    • Specialising in preparation of thermally sprayed coatings
  • Surface analysis
    • Scanning electron microscopy, especially with back scatter electron (BSE) imaging
    • X-ray diffraction, including use of Rietveld pattern fitting (MAUD software)
    • Optical microscopy

Selected publications and creative works (Research Outputs)

Contact details

Primary office location

ENGINEERING BLOCK 5 - Bldg 405
Level 9, Room 935
5 GRAFTON RD
AUCKLAND CENTRAL
AUCKLAND 1010
New Zealand

Web links