Mark Stoffels' paper on effects of water adsorption in composites was published onlinejust before Christmas in Composites Part A
Mark's paper "Reduced Interfacial Adhesion in Glass Fibre-Epoxy Composites due to Water Absorption via Molecular Dynamics Simulations" coauthored with Dr Bishop and Associate Professor Mark Staiger was published online on 23 December. It is available for free via the sharelink until 19th February 2019. https://authors.elsevier.com/a/1YJB1,UwqXJSf2
The paper reveals the atomic origin of reduced work of adhesion in silica fibre reinforced epoxy composites with adsorption of water to the fibre-sizing interface. The inclusion of sizing in a molecular dynamics approach to modelling composites is noteworthy. This work builds on the methods Mark developed to determine the solubility limit of water in network polymers.
Materials@UC 2018 conference showcases materials research at the University of Canterbury.
The inaugural conference of the UC Materials Cluster was chaired by Dr Bishop, 3-4 December, 2018. The meeting brought together about 80 researchers from across the University and was particularly focused on student presentations. Professor Doug MacFarlane, Monash University, and Professor Cather Simpson, University of Auckland, were the plenary speakers. Six students were awarded prizes totaling $1200 for their excellent talks and posters.
Group members Alice Young, Oscar Torres-Matheus and Ethan Huang all presented talks on their work. Group affiliates Nic Weaver and Alibe Wasa also presented talks.
Oscar Torres-Matheus's first paper is published online in Acta Materialia
Oscar's paper "Phase coexistence near the polymorphic phase boundary" coauthored with Dr Bishop and Professor Edwin Garcia, Purdue University, was published online in November. It is available for free via the sharelink until 4th January 2019. https://authors.elsevier.com/a/1Y3bU4r9SUBSCz
The paper introduces a new approach to modelling ferroelectric-ferroelectric transitions and the analysis supports the rhombohedral + tetragonal phase coexistence interpretation of the polymorphic phase boundary region in lead-free BZT-BCT ceramics.
Nick Breeuwer presents his research on manipulating grain size in Mechanical Engineering seminar.
Nick is a final year Mechanical Engineering student who completed an Independent Course of Study in the Group. He studied the thermo-mechanical processing of brass samples. He devised a method for preparing specimens for digital image correlation (DIC) in order to analyse the spatially varying strain during tensile tests of dog bone samples. His study was a proof of concept, and his processing methods will be used for industrially-applied problems.
Group's alloy research presented at IMC-19 in Sydney, Australia.
Alice Young presented her PhD research in a Mini-Oral presentation format for her electronic poster at the International Microscopy Congress in Sydney in September. Her work on identifying the precipitation sequence in nitrided alloy 800H and the effect of in-service nitridation on creep performance is sponsored by Methanex New Zealand. The aim of the work is to extend the lifetime of the pigtails downstream of methanol reformer tubes.
Dr Bishop's research selected for Late Breaking Science talk at Gordon Research Conference.
The poster presented by Dr Bishop at the Solid State Studies in Ceramics Gordon Research Conference in August was selected by the organisers for a Late Breaking Science talk. The work presented was a combination of Oscar Torres's PhD research and a collaboration with Professor Edwin Garcia. The project with Professor Garcia began during his 2018 Erskine Fellowship where he was hosted by Dr Bishop in the Department of Mechanical Engineering at UC.
Dr Mark Stoffels obtains his PhD.
Congratulations to Dr Mark Stoffels for successfully defending his thesis and obtaining his PhD in March 2018. Mark's work shed light on the effect of water on the strength of glass-fibre reinforced epoxy composites. His careful molecular dynamics work was validated with experiments at UC. This research builds on his Master's research conducted at Montana State University. His first paper used MD to determine the solubility limit of water in epoxy.
Group's research receives Gold Star rating from MBIE for second year in a row.
The Group's collaboration with the Advanced Energy and Materials Systems Laboratory led by Professor Susan Krumdieck on the MBIE-funded project "Race to the Finish: Processing and Properties Optimization of self-cleaning, antimicrobial ceramic coatings for buttons, knobs, handles and rails in hospitals" has received a Gold Star rating for thesecond year in a row. This rating is the highest given by MBIE for "performing above expectation". Only 7% of the 233 MBIE annual reports received this rating in 2017. The project is part of MBIE's High Value Manufacturing Science and Technology Research Programme Contract No. CONT-42986-HVMSTR-UOC.
Group presents research at MS&T 2017 in Pittsburgh, USA.
Dr Bishop and Oscar Torres-Matheus both presented research at the 2017 Materials Science and Technology meeting in October. After the meeting, Torres visited research collaborators at Purdue University, Professor Edwin Garcia and Professor John Blendell.
Group's MBIE-funded collaboration with Chemical and Process Engineering (CAPE) on the ultra-high temperature electrolysis project features in UC's Chronicle. Full article is on page 13 Chronicle no. 54.
(Front row from left) Thomas Hughes, Dr Bishop, Vanessa Moodabe-Smith and (back row) Ben Houlton, Dr Matt Watson (CAPE), Dr Aaron Marshall (CAPE), Phil Kim.
Undergraduate Honours research published in top industrial ceramics research journal.
The team of four final year students completed a project sponsored by Methanex New Zealand and supervised by Dr Bishop. They studied the failure of catalyst pellets during thermal cycling of steam reformer tubes using the first published direct experiments.