Materials World - all features 2010
Canada’s smallest federal territory is rich in mining heritage and
mineral discoveries, yet there are further valuable deposits in the
Exploring and extracting alluvial diamonds is challenging. Michael
Forrest talks to Martin Prinsloo, of Dreamstone Mining, London, UK,
about their methods.
Improved surface manipulation could have a range of benefits for industry. Paul Hilton and Jonathon Blackburn from TWI Ltd, Cambridge, UK, outline a laser beam induced approach that enables controlled modification.
Professor Robert Dorey, Head of the Microsystems and Nanotechnology Centre at Cranfield University, UK, considers the future of personal energy solutions and the role that materials science will play.
Piezo or ferroelectric properties, are finding favour in photocatalysis
and photovoltaic devices. Dr Steve Dunn, Senior Lecturer, at the Centre
for Materials Research, Queen Mary, University of London, outlines the
potential of these functional materials.
The search for materials to develop low-cost solar cell systems
continues. Professor Guosheng Shao from the University of Bolton, UK,
explores titanium dioxide at the molecular level.
In my inaugural column (Materials World, June 2010), I wrote how inaccurately much of the media reported the events on the Deepwater
Fluorspar is a vital commodity. Michael Forrest talks to Pat Cheetham,
Executive Chairman of Tertiary Minerals, in Macclesfield, UK, about the
firm’s bid to reduce Europe’s dependence on Chinese exports.
Determined to reduce levels of acid consumption, Alexander Mining plc,
based in London, UK, has developed a new technique for extracting copper
from high alkali deposits.
A programme to extend the life of braking systems using waste carbon
fibre in reinforced ceramic composites has come to an end. Dr Houzheng Wu, Senior Lecturer in materials from Loughborough University, UK, outlines the improvements made.
The UK casting industry has received a boost with the foundation of a
facility to develop the field. Dr Ian Stone, at Brunel University, Uxbridge, UK, reports
Developing cleaner and more sustainable light alloy manufacture in the
aerospace and automotive sectors is the focus of a centre of excellence
at The University of Manchester, UK. Programme Project Manager Susan Davis outlines the LATEST2 programme.
In recent years, R&D for the UK light metals industry has declined, but a robust group of supported projects remain as a core for
Manufacturing materials consistently to identical standards is becoming
more feasible. Tim Nunney and Richard White, from global research
company Thermo Fisher Scientific Inc, outline the uses of X-ray
Michael Forrest reports on the increasing popularity of this ductile transition metal.
The search for new sources of oil is ongoing and Estonia is the current
area of interest. Michael Forrest talks to Andreas Orth, Vice-President
for Energy, at Outotec, Germany, about oil shale.
Supplying electricity across water expanses can only be completed
through durable cables. Kristin Hessen, Communications and Marketing
Director, from Nexans, Halden, Norway, outlines the developments in
cross-linked polyethylene conductors for more efficient power delivery.
In electronics, fabricating smaller components is a major objective.
Professor David Britton, from the NanoSciences Innovation Centre at the
University of Cape Town, South Africa, outlines the progress made in
printed silicon technology.
Apparently more and more of us are taking a summer break at home this year. If so, a traditional holiday by the sea will no doubt appeal to many.
Michael Forrest reports on developments at the Bjorkdal mine in Sweden,
where a junior Canadian mining company hopes to strike gold.
Michael Forrest reports on the Resources in Africa Masterclass, hosted
in June by international law firm Simmons and Simmons, in London, UK.
Karin Hing, Senior Lecturer in Biomaterials at Queen Mary, University of London, UK, outlines developments in bone grafting.
Anisotropic hydrogel systems for surgical tissue expansion have been
developed to aid soft tissue growth. Dr Jinhyun Hannah Lee,
Post-doctoral Research Fellow at the University of Oxford, UK, reports
on the process.
An in vitro approach for optimising implant biocompatibility has been
developed by Damian Marshall, Principal Scientist for Cell Biology at
LGC, and Paul Tomlins, Principal Scientist for biomaterials at NPL, both
Teddington, UK, who outline the process.
David Farrar, Science Manager for Biomaterials at Smith & Nephew
Research Centre, York, UK, gives an update on the development of bone
Nickel recovery technology being used in Finland relies on bacteria for a higher yield.
This article examines dry slag granulation, a process of using metal smelting waste by-products for value added results.
Projects to enhance manufacturing processes in the north of England coming out of the Surface Engineering Group are presented.
Discussing the importance of metrology and
standardisation for surface engineering and describing the benefits of different test methods.
The changing face of design using engineering materials and coating systems for advanced aero-engine applications is discussed by Keith Harrison of the Surface Engineering Division at IOM3 and Mike Hicks of Rolls-Royce, UK.
An update on the website for the Surface Engineering Division of IOM3, first presented in Materials World in 2008.
Necessity is the mother of invention, as Plato is widely quoted as saying, although, in my opinion, breakthroughs in design more often come about by existing materials being used in untried ways.
Michael Forrest talks to Ian Brown, National Production Manager of Lafarge Aggregates, about the ongoing rock supply found at the long-serving Mountsorrel Quarry, in Leicestershire, UK.
Mining companies that are expanding operations to different countries must ensure they have the correct legal guidance suitable for the location. Andrew Wright, Head of Public Markets for law firm Cobbetts LLP, outlines the issues.
Separating gold from the surrounding rock and eliminating potentially harmful waste is important for gold recovery. Sonestie Janse van Rensburg, Senior Scientist from Mintek, South Africa, highlights the process of advanced gold leaching.
Abhay Bulsari, from Nonlinear Solutions Oy, Turku, Finland, outlines the benefits of nonlinear modelling for hardness and thermal conductivity.
Jonathan Carter and Kevin Troyano-Cuturi, from the Department of Earth
Science and Engineering at Imperial College London, UK, show the results
of revisiting an old idea for transporting aggregates with modern
Namibian rare earth resources could break the Chinese monopoly for these elements
Describing the process of continuous hydrothermal synthesis for manufacturing inorganic nanoparticles.
Reporting on a new venture to source cobalt for the USA's 'green' economy.
The effects of nanofluids on heat transfer and treatment.
An overview of nanotech applications in energy.
Stretched nanofibres of polyethylene can have a thermal conductivity larger than that of bulk material, meaning polymers can be used as efficient heat conducting materials.
Recognising the potential of mineral waste as an alternative to traditional construction materials.
Researchers at Cambridge have developed a new chemical method to simultaneously produce and disperse mineral nanoparticles in a polymeric matrix for bone repair.
Spark plasma sintering can be used to develop ceramics with valuable properties.
The development of cement mixtures to safely contain nuclear waste.
David Hunter, an Analyst at UK energy consultancy and utility management firm McKinnon and Clarke, Dunfermline, UK, discusses energy supply.
Chemical grouting prevented an Icelandic tunnel project becoming a total wipe out. This article describes the processes used.
No other subject than bioplastics is so hotly debated in the plastics
industry, and yet, it is not always clear what the term means. This article provides some background information.
Considering the difficulties of materials specification for infection control.
Presenting highlights of the Polymer Process Engineering meeting held in Bradford, UK.
James Busfield at Queen Mary University of London and James Adams at the University of Surrey, both in the UK, describe advances in smart elastomers.
How do companies confidently calculate the worth of a resource?
A Canadian mining company has mounted extensive exploration programmes in the Central Mineral Belt (CMB) of Labrador, a province of complex geology and few inhabitants. It is focusing on clean energy components, including uranium and vanadium as vanadium redox batteries can rapidly charge and discharge without deterioration.
Team MAST has been delivering the UK Ministry of Defence’s (MOD’s) low to medium maturity materials and structures research since November 2007. This article presents case studies from that work - coatings to lower solar heat absorption, self healing of fibre-reinforced polymer composites and integrated damage resistance in composite structures.
Warfare is moving to the nanoscale to defend soldiers against modern chemical and biological weapons. This article describes Swedish developments.
Describing improvements to antennas for surveilence through new materials developments.
This article focuses on the work of Australian Defence Apparel and the requirements for future armour systems.
The StereoCore PhotoLog system from Ground Modelling Technologies in Johannesburg, South Africa, is finding applications in large mine projects, this article describes it.
Tanzania has great potential as a developing mining nation. Michael Forrest reports on a UK All-Party Parliamentary Group meeting that discussed the country.
Discussing the processes involved in chemically machining difficult-to-etch metals and alloys using direct current, pulse and pulse-reverse electrolytic etching.
Describing the methods used to produce deformed layers that give alloys differing surface properties.
Wall coatings can be used to provide energy savings in refractories.
The methods and advantages of using ultrafine titanium in manufacturing are discussed.
The teaching of thermodynamics has become dry with student's failing to see the relevance of the topic. Work at NPL has developed a new, more tangible, framework
Michael Forrest reviews the IOM3 2009 Commodity Day, held on 24 November in London, UK, which focused on gold.
The South African gold industry has been moving towards deeper mines, we consider the trend.
If you develop a new technology, what happens next?
A risk assessment model to identify and quantify the environmental hazards of disposing of drilling discharges in the marine environment is described by Paul Page of BP Exploration Ltd, UK, and Mark Reed and Henrik Rye, both of SINTEF Materials and Chemistry in Norway.