The ICAM Lecture Series

The ICAM Lecture Series presents lectures from leaders in various fields of materials science.

2019 Series

When Soft Materials Meet Electron Microscopy

An overview from Professor Qian Chen

Prof. Qian Chen

In this ICAM webinar, Professor Qian Chen from the University of Illinois at Urbana-Champaign discussed three soft materials systems whose nanoscale structure and dynamics, conventionally difficult to resolve, dictate their function.

The first system concerned the elusive nucleation pathways of crystals at the nanoscale. We are able to directly image the full crystallization of nanoparticles using liquid-phase transmission electron microscopy (TEM). Single-particle tracking, when combined with Monte Carlo simulation techniques, reveals a series of unexpected crystallization pathways for different nanoparticle shapes due to the inherent many-body coupling and discreteness at the nanoscale.

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2018 Series

Electrochemical Techniques for Corrosion

An overview from Dr Kyra Sedransk Campbell

Dr Kyra Sedransk Campbell

In this ICAM webinar, Dr Kyra Sedransk Campbell, Royal Society – EPSRC Dorothy Hodgkin Research Fellow in the Department of Chemical Engineering at Imperial College London, explored the diversity of electrochemical techniques for understanding corrosion phenomena.

The wide reaching implications of corrosion problems cannot be overstated, with staggering global costs. However, it is an oversimplification to think of all the corrosion problems as a single phenomenon. We are better served to think of corrosion as a family of phenomena. The changes to the substrate in question can be chemical, electrochemical, and/or mechanical and all of these must be considered in the context of the environment in which the changes are occurring. In academia, the focus is to understand these underlying phenomena to help explain the corrosion behaviours observed. Developing this understanding is critical to developing adequate and appropriate corrosion mitigation strategies.

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Extreme Environments and Dynamic Morphology

An overview from Prof. Jessica Krogstad

Prof. Jessica Krogstad
In this ICAM webinar, Professor Jessica A. Krogstad from the University of Illinois at Urbana-Champaign, discussed the importance of harnessing evolving structure-property relationships for materials used in extreme environments.

Faced with longer service lifetimes, higher operating temperatures, more complex loading configurations, and aggressive environments, reliable operation of many key technologies hinges upon the durability of materials or material systems. In these extreme environments, understanding the evolution of material properties may be even more important than the initial performance of the material. The energy industry is ripe with extreme conditions, ranging from the chemical complexity of the carbon-based stock material to the high temperatures or pressures found during extraction, processing or use of materials.

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Mechanics of Hydrogen Diffusion and Embrittlement

An overview from Prof. Norman Fleck

Prof. Norman Fleck
In this ICAM webinar, Professor Norman Fleck FRS from the University of Cambridge, discussed the mechanics of hydrogen diffusion and embrittlement.

Hydrogen embrittlement results from the diffusion of hydrogen into a metallic alloy, such as pipeline steels, and subsequent embrittlement at various trapping sites, such as grain boundaries. These traps are sites of hydrogen embrittlement, and the degree to which the traps soak up hydrogen depends upon the type of site and the enthalpy of trapping.

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Keeping An Eye on Advanced Materials

An overview from Prof. Philip Withers

Prof. Philip Withers

Professor Philip Withers FRS, Regius Professor of Materials at The University of Manchester and Chief Scientist for the Henry Royce Institute, delivered the first ICAM webinar of 2018 on ‘keeping an eye on advanced materials’.

Growth in the materials industry in the mid-20th century was driven by drop-in substitution as new materials such as plastics came to the fore, resulting in the formation of important materials-based industries. But the focus has now shifted, from simple substitution, to the creation of custom materials having tailored functionality, such as magnetic materials for data storage. In response we will have to rethink how we create new materials.

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2017 Series

Bio-Inspired Photonics

An overview from Dr Silvia Vignolini

Dr Silvia Vignolini

Dr Silvia Vignolini, Reader in Chemistry and Biomaterials at the University of Cambridge, delivered the final ICAM webinar of 2017 on the topic of bio-inspired photonics.

The most brilliant colours in nature are obtained by structuring transparent materials on the scale of the wavelength of visible light. By controlling/designing the dimensions of such nanostructures, it is possible to achieve extremely intense colourations over the entire visible spectrum without using pigments or colorants.

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Corrosion Studies

An overview from Dr Brian Connolly

Dr Brian Connolly

Dr Brian Connolly, EDF Energy/Royal Academy of Engineering Reader in Corrosion Performance of Energy Systems at The University of Manchester, delivered the sixth ICAM webinar of 2017 on the topic of studying corrosion to extend the life and structural integrity of materials.

Corrosion is an omnipresent concern in most industrial applications. In fact corrosion alone costs industry globally $2 trillion each year, of which £55 billion per annum is the cost to the UK and $1.37 billion per year the cost to the global Oil & Gas sector.

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Self-Organized Metallic Alloys for Wear Applications

An overview from Prof. Pascal Bellon

Prof. Pascal Bellon
Professor Pascal Bellon, the Donald W. Hamer Professor in Materials Science and Engineering at the University of Illinois at Urbana-Champaign, delivered the fifth ICAM webinar of 2017 on the topic of self-organized metallic alloys for wear applications.
Materials are commonly subjected to plastic deformation, in particular during their fabrication and shaping, and in service. This plastic deformation can alter the phase stability in these materials, and thus modify their properties, often in a detrimental way.

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Developing and Selecting Tribological Coatings

An overview from Prof. Allan Matthews

Prof. Allan Matthews

Professor Allan Matthews, Professor of Surface Engineering and Tribology at The University of Manchester and the Director of the BP International Centre for Advanced Materials, delivered the fourth ICAM webinar of 2017 on the topic of developing and selecting tribological coatings.

For many years, it was widely believed that the best way to reduce the wear of a surface was to make it harder. Here, Professor Allan Matthews outlines the reasons why it is in fact the ratio of the hardness to elastic modulus which gives us the best indicator of wear resistance, especially for coatings. The implications for the development of improved wear-resistant surfaces are outlined and examples of coatings which achieve this ratio were also discussed, including nanocomposite and nanolayered coatings. Mention was also given to so-called ‘duplex’ coating systems, which combine surface treatments with coatings to gain maximum tribological benefits.

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Biosciences for Oil and Gas

An overview from Dr Kirsty Salmon

Dr Kirsty Salmon
Dr Kirsty Salmon from BP delivered the third ICAM webinar of 2017 on biosciences applications for the energy industry.
The BP Biosciences Center (BSC), located in San Diego, is part of BP’s Group Research in Group Technology. The remit of the BSC is to support and provide assistance to BP’s businesses that operate biological processes, as well as to identify how the biosciences can add value to existing businesses, and then implement relevant research and development programs. Two areas where biology plays an important role in BP’s businesses are biosouring and wastewater, and these were discussed in this ICAM Webinar. 

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From 2D Materials to 3D Architectures

An overview from Dr Camille Petit

Dr Camille Petit
Dr Camille Petit from Imperial College London delivered the second ICAM webinar of 2017 on the topic of 2D materials and 3D architectures.
Dr Petit presented various types of 2D materials and described why they have attracted considerable attention from the academic and industrial communities. She then focussed on making 3D structures from 2D materials as a way to develop multifunctional devices with tunable architectures.

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Smart Materials and Surfaces

An overview from Prof. Ivan Parkin

Prof. Ivan Parkin
Professor Ivan Parkin from University College London delivered the first ICAM webinar of 2017 on smart materials and surfaces.
Professor Parkin described the role of surface chemistry and microstructure in determining a material’s functional properties. He looked at water repellent superhydrophobic coatings and showed how these coatings require surface roughness and an intrinsic low-surface energy interaction with water.  

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2016 Series

Membranes for Separating Molecules

An overview from Prof. Andrew Livingston

Prof. Andrew Livingston
Professor Andrew Livingston from the Department of Chemical Engineering at Imperial College London delivered the final ICAM webinar of 2016 on membranes for separating molecules.
Professor Livingston described why membranes have been so successful in Reverse Osmosis (RO), how polymer membranes are made, and what the current challenges for aqueous RO membranes are. He then outlined some of the research being undertaken at Imperial College London to develop new membranes, for RO and for molecular separations in organic systems.

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Polymers with Biologically-Inspired Autonomous Functions

An overview from Prof. Nancy Sottos

Prof. Nancy Sottos
Professor Nancy Sottos, the Donald B. Willet Professor of Engineering at the University of Illinois at Urbana-Champaign, delivered the fourth ICAM webinar of 2016 on polymers with biologically-inspired autonomous functions.
Professor Sottos described recent developments in self-protection to guard against environmental factors such as mechanical stress, chemical corrosion, or extreme temperatures; self-reporting capabilities to ensure that loss in performance caused by a specific event is registered and communicated; and self-healing to recover structural performance once the system has been damaged.

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The Energy Challenge

An overview from Cameron Rennie

Cameron Rennie
Cameron Rennie, Senior Strategy Advisor at BP Group Technology, delivered the third ICAM webinar of 2016 on the global energy challenge.
Cameron discussed how the production and use of energy is linked to availability of many natural resources. He described examples of dependencies on availability of water, land and specific minerals.

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Nanoscale Engineering

An overview from Dr Colm Durkan

Dr Colm Durkan
Dr Colm Durkan, Reader in Nanoscale Engineering and head of Nanoscience at the University of Cambridge, delivered the second ICAM webinar of 2016 on the topic of nanoscale engineering.
Dr Durkan discussed how recent advances in the nanoscale probing of materials have opened up a whole host of opportunities previously only dreamed of. Coupled together with the ability to fabricate or engineer surfaces, materials and devices, we have a highly fertile space to play with. 

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Molecular Simulation of Fluids

An overview from Prof. Erich Muller

Prof. Erich Muller
Professor Erich Muller, from the Department of Chemical Engineering at Imperial College London, delivered the first ICAM webinar of 2016 on the topic of the molecular simulation of fluids
Professor Muller discussed the simulation ladder, from quantum mechanics and density functional theory to continuum models such as lattice Boltzmann and computational fluid dynamics emphasizing the opportunities and present limits of the different approaches. 

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2015 Series

New Directions in Optical Sensing and Manipulation

An overview from Prof. Kishan Dholakia

Prof. Kishan Dholakia

“This talk will cover new approaches to sensing and analysis using optical approaches namely Raman analyse, optical coherence tomography and light sheet imaging. Examples will include whisky analysis, label free drug detection, blood analysis and applications for biomedical science.”

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Electric Field assisted Chemical Vapour Deposition of Nanostructured Metal Oxide Thin Films

An overview from Dr Russell Binions

Dr Russell Binions

“Nanostructured thin films of titanium dioxide, tungsten trioxide and vanadium dioxide have been deposited using a novel electric field assisted chemical vapour deposition methodology onto glass and gas sensor substrates. Electric fields were generated during the deposition reaction by applying a potential difference across the inter-digitated electrodes of the gas sensor substrate or by applying an electric field between two transparent conducting oxide coated glass substrates. The deposited films were analysed and characterized using scanning electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy and X-ray diffraction. It was found that applying an electric field led to large changes in film microstructure, preferential orientation and an increase in the film growth rate.

This led to improved materials properties such as increased photo-catalytic activity, enhanced wetting behaviour, reduction in thermochromic transition temperature and improved supercapacitor electrode behaviour. The gas sensor properties of the films were also tested and it was found that by tuning the microstructure of the films a two to three fold enhancement in sensor response could be obtained compared to sensors deposited in the absence of an electric field. Electric field assisted chemical vapour deposition shows great promise as a method for nano-structuring and tailoring the properties of metal oxide thin films.”

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2014 Series

Hydrogen in Complex Microstructure in Steel

An overview from Prof. Harry Bhadeshia

Prof. Harry Bhadeshia

“There are aspects of hydrogen in steels that are crystal clear. For example, that hydrogen in solid solution embrittles, does not require further work. The mechanism by which it embrittles is far from clear, and there is no generic theory capable of rationalising the vast quantities of data available in the published literature. When combined with the fact that practical alloys have complex mixtures of phases and defects, the confusion can be said to be complete.

However, all is not lost because measures can in principle be taken to limit the potency of hydrogen. I will begin with an introductory review of the subject, mention specific examples where significant performance enhancements have been observed, and deal with the theory and new experimental data on the passage of hydrogen through complicated mixtures of phases.”

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