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Department Of Materials, University Of Oxford
The Department of Materials at the University of Oxford, England was founded in the 1950s as the ''Department of Metallurgy'', by William Hume-Rothery, who was a reader in Oxford's Department of Inorganic Chemistry. It is part of the university's Mathematical, Physical and Life Sciences Division Around 190 staff work in the Department of Materials full-time, including professors, lecturers, independent fellows, researchers and support staff. There are around 30 academic staff positions of which four are Chairs. The Isaac Wolfson Chair in Metallurgy was set up in the late 1950s. Sir Peter Hirsch formerly held the chair. The current holder of the chair is Peter Bruce FRS. Other Chairs in the department include the Vesuvius Chair of Materials held by Patrick Grant FREng, Professor in the Physical Examination of Materials formerly held by David Cockayne FRS and the James Martin Chair in Energy Materials held by James Marrow. Oxford Materials is a research-intensive department, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematical, Physical And Life Sciences Division, University Of Oxford
The various academic faculties, departments, and institutes of the University of Oxford are organised into four divisions, each with its own Head and elected board. They are the Humanities Division; the Social Sciences Division; the Mathematical, Physical and Life Sciences Division; and the Medical Sciences Division. Humanities Division The Humanities Division has received considerable praise for its work at the forefront of digitising the Humanities. The Humanities Division has been physically expanding into the new Radcliffe Observatory Quarter in Oxford. The current Head of the Humanities Division is Professor Karen O'Brien. Professor Sally Shuttleworth was Head from 2006 to 2011, Professor Shearer West served as Head between August 2011 and 2015, and Chris Wickham until 2018. The Division contains the following faculties and departments: * Rothermere American Institute * Ruskin School of Art * Faculty of Classics * Faculty of English * Faculty of History * History ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmission Electron Microscopy
Transmission electron microscopy (TEM) is a microscopy technique in which a beam of electrons is transmitted through a specimen to form an image. The specimen is most often an ultrathin section less than 100 nm thick or a suspension on a grid. An image is formed from the interaction of the electrons with the sample as the beam is transmitted through the specimen. The image is then magnified and focused onto an imaging device, such as a fluorescent screen, a layer of photographic film, or a sensor such as a scintillator attached to a charge-coupled device. Transmission electron microscopes are capable of imaging at a significantly higher resolution than light microscopes, owing to the smaller de Broglie wavelength of electrons. This enables the instrument to capture fine detail—even as small as a single column of atoms, which is thousands of times smaller than a resolvable object seen in a light microscope. Transmission electron microscopy is a major analytical method ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Nellist
Peter David Nellist, is a British physicist and materials scientist, currently a professor in the Department of Materials at the University of Oxford. He is noted for pioneering new techniques in high-resolution electron microscopy. Early life and career Nellist gained his B.A. (1991), M.A. (1995) and Ph.D (1996) from St John's College, Cambridge, and studied at the Cavendish Laboratory with John Rodenburg, before taking up post-doctoral research at Oak Ridge National Laboratory (ORNL) in Tennessee with ex-Cavendish researcher Stephen Pennycook. Eighteen months later, Nellist returned to Cambridge on a Royal Society University Research Fellowship, which he transferred to the University of Birmingham. He left academia for four years to work for another ex-Cambridge microscopy pioneer, Ondrej Krivanek, at Nion, his newly formed company in Seattle. Nellist then returned to the University of Dublin and finally to the University of Oxford, where he became Joint Head of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angus Wilkinson
Angus J Wilkinson is a professor of materials science based at University of Oxford. He is a specialist in micromechanics, electron microscopy and crystal plasticity. He assists in overseeing the MicroMechanics group while focusing on the fundamentals of material deformation. He developed the HR-EBSD method for mapping stress and dislocation density at high spatial resolution used at the micron scale in mechanical testing and micro-cantilevers to extract data on mechanical properties that are relevant to materials engineering. Selected publications * Wilkinson AJ, Meaden G, Dingley DJ. High-resolution elastic strain measurement from electron backscatter diffraction patterns: New levels of sensitivity. Ultramicroscopy 2006;106:307–13. https://doi.org/10.1016/j.ultramic.2005.10.001. * Wilkinson AJ, Hirsch PB. Electron diffraction based techniques in scanning electron microscopy of bulk materials. Micron 1997;28:279–308. https://doi.org/10.1016/S0968-4328(97)00032-2. * Wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Vehicle
An electric vehicle (EV) is a vehicle that uses one or more electric motors for propulsion. It can be powered by a collector system, with electricity from extravehicular sources, or it can be powered autonomously by a battery (sometimes charged by solar panels, or by converting fuel to electricity using fuel cells or a generator). EVs include, but are not limited to, road and rail vehicles, surface and underwater vessels, electric aircraft and electric spacecraft. For road vehicles, together with other emerging automotive technologies such as autonomous driving, connected vehicles and shared mobility, EVs form a future mobility vision called Connected, Autonomous, Shared and Electric (CASE) Mobility. EVs first came into existence in the late 19th century, when electricity was among the preferred methods for motor vehicle propulsion, providing a level of comfort and ease of operation that could not be achieved by the gasoline cars of the time. Internal combustion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithium
Lithium (from el, λίθος, lithos, lit=stone) is a chemical element with the symbol Li and atomic number 3. It is a soft, silvery-white alkali metal. Under standard conditions, it is the least dense metal and the least dense solid element. Like all alkali metals, lithium is highly reactive and flammable, and must be stored in vacuum, inert atmosphere, or inert liquid such as purified kerosene or mineral oil. When cut, it exhibits a metallic luster, but moist air corrodes it quickly to a dull silvery gray, then black tarnish. It never occurs freely in nature, but only in (usually ionic) compounds, such as pegmatitic minerals, which were once the main source of lithium. Due to its solubility as an ion, it is present in ocean water and is commonly obtained from brines. Lithium metal is isolated electrolytically from a mixture of lithium chloride and potassium chloride. The nucleus of the lithium atom verges on instability, since the two stable lithium isotopes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithium-ion Battery
A lithium-ion or Li-ion battery is a type of rechargeable battery which uses the reversible reduction of lithium ions to store energy. It is the predominant battery type used in portable consumer electronics and electric vehicles. It also sees significant use for grid-scale energy storage and military and aerospace applications. Compared to other rechargeable battery technologies, Li-ion batteries have high energy densities, low self-discharge, and no memory effect (although a small memory effect reported in LFP cells has been traced to poorly made cells). Chemistry, performance, cost and safety characteristics vary across types of lithium-ion batteries. Most commercial Li-ion cells use intercalation compounds as the active materials. The anode or negative electrode is usually graphite, although silicon-carbon is also being increasingly used. Cells can be manufactured to prioritize either energy or power density. Handheld electronics mostly use lithium polymer batte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Royce Institute
The Henry Royce Institute (often referred to as ‘Royce’) is the UK’s national institute for advanced materials research and innovation. Its vision is to identify challenges and to stimulate innovation in advanced materials research to support sustainable growth and development. Royce aims to be a "single front door" to the UK’s materials research community. Its stated mission is to “support world-recognised excellence in UK materials research, accelerating commercial exploitation of innovations, and delivering positive economic and societal impact for the UK.” Operating from its Hub at the University of Manchester, Royce is a partnership of eleven leading UK institutions. Royce operates as a hub and spoke collaboration between the University of Manchester (the hub), and the spokes of the founding Partners National Nuclear Laboratory, UK Atomic Energy Authority, Imperial College London, University of Cambridge, University of Leeds, University of Liverpool, U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond Light Source
Diamond Light Source (or Diamond) is the UK's national synchrotron light source science facility located at the Harwell Science and Innovation Campus in Oxfordshire. Its purpose is to produce intense beams of light whose special characteristics are useful in many areas of scientific research. In particular it can be used to investigate the structure and properties of a wide range of materials from proteins (to provide information for designing new and better drugs), and engineering components (such as a fan blade from an aero-engine) to conservation of archeological artifacts (for example Henry VIII's flagship the Mary Rose). There are more than 50 light sources across the world. With an energy of 3 GeV, Diamond is a medium energy synchrotron currently operating with 32 beamlines. Design, construction and finance The Diamond synchrotron is the largest UK-funded scientific facility to be built in the UK since the Nimrod proton synchrotron which was sited at the Ruth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spectroscopy
Spectroscopy is the field of study that measures and interprets the electromagnetic spectra that result from the interaction between electromagnetic radiation and matter as a function of the wavelength or frequency of the radiation. Matter waves and acoustic waves can also be considered forms of radiative energy, and recently gravitational waves have been associated with a spectral signature in the context of the Laser Interferometer Gravitational-Wave Observatory (LIGO) In simpler terms, spectroscopy is the precise study of color as generalized from visible light to all bands of the electromagnetic spectrum. Historically, spectroscopy originated as the study of the wavelength dependence of the absorption by gas phase matter of visible light dispersed by a prism. Spectroscopy, primarily in the electromagnetic spectrum, is a fundamental exploratory tool in the fields of astronomy, chemistry, materials science, and physics, allowing the composition, physical structure an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crystal Structure
In crystallography, crystal structure is a description of the ordered arrangement of atoms, ions or molecules in a crystalline material. Ordered structures occur from the intrinsic nature of the constituent particles to form symmetric patterns that repeat along the principal directions of three-dimensional space in matter. The smallest group of particles in the material that constitutes this repeating pattern is the unit cell of the structure. The unit cell completely reflects the symmetry and structure of the entire crystal, which is built up by repetitive translation of the unit cell along its principal axes. The translation vectors define the nodes of the Bravais lattice. The lengths of the principal axes, or edges, of the unit cell and the angles between them are the lattice constants, also called ''lattice parameters'' or ''cell parameters''. The symmetry properties of the crystal are described by the concept of space groups. All possible symmetric arrangements of partic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-RAY
X-rays (or rarely, ''X-radiation'') are a form of high-energy electromagnetic radiation. In many languages, it is referred to as Röntgen radiation, after the German scientist Wilhelm Conrad Röntgen, who discovered it in 1895 and named it ''X-radiation'' to signify an unknown type of radiation.Novelline, Robert (1997). ''Squire's Fundamentals of Radiology''. Harvard University Press. 5th edition. . X-ray wavelengths are shorter than those of ultraviolet rays and longer than those of gamma rays. There is no universally accepted, strict definition of the bounds of the X-ray band. Roughly, X-rays have a wavelength ranging from 10 nanometers to 10 picometers, corresponding to frequencies in the range of 30 petahertz to 30 exahertz ( to ) and photon energies in the range of 100 eV to 100 keV, respectively. X-rays can penetrate many solid substances such as construction materials and living tissue, so X-ray radiography is widely used in medi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
