Search Results - "Edwards, Rachel S."

Calculating the Magnetic Anisotropy of Rare-Earth-Transition-Metal Ferrimagnets by Patrick, Christopher E, Kumar, Santosh, Balakrishnan, Geetha, Edwards, Rachel S, Lees, Martin R, Petit, Leon, Staunton, Julie B

“…Magnetocrystalline anisotropy, the microscopic origin of permanent magnetism, is often explained in terms of ferromagnets. However, the best performing…”
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Differential Coil EMAT for Simultaneous Detection of In-Plane and Out-of-Plane Components of Surface Acoustic Waves by Trushkevych, Oksana, Edwards, Rachel S.

“…Surface acoustic waves, such as Rayleigh or Lamb waves, can be used to characterise the geometry of surface-breaking defects. For accurate measurement of…”
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Application of ultrasonic guided waves to robotic occupancy grid mapping by Tabatabaeipour, Morteza, Trushkevych, Oksana, Dobie, Gordon, Edwards, Rachel S., McMillan, Ross, Macleod, Charles, O'Leary, Richard, Dixon, Steve, Gachagan, Anthony, Pierce, Stephen G.

“…•Characterisation of an SH guided wave ranging sensor developed using EMAT technology.•Development of a sensor model for the pseudo-pulse-echo inspection using…”
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Phased Electromagnetic Acoustic Transducer Array for Rayleigh Wave Surface Defect Detection by Xiang, Lunci, Greenshields, David, Dixon, Steve, Edwards, Rachel S.

“…A phased electromagnetic acoustic transducer (EMAT) array system has been developed for the detection and characterization of surface-breaking defects. An…”
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Laser-vibrometric ultrasonic characterization of resonant modes and quality factors of Ge membranes by Trushkevych, Oksana, A Shah, Vishal, Myronov, Maksym, E Halpin, John, D Rhead, Stephen, J Prest, Martin, R Leadley, David, S Edwards, Rachel

“…The vibrations of a single-crystal germanium (Ge) membrane are studied in air and vacuum using laser vibrometry, in order to determine mechanical properties…”
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Characterization of EMAT Guided Wave Reflectivity on Welded Structures for Use in Ranging by McMillan, Ross, Tabatabaeipour, Morteza, Hampson, Rory, Loukas, Charalampos, Zhao, Taiyi, Edwards, Rachel S., MacLeod, Charles, Dobie, Gordon

“…Guided wave ranging measurements offers an elegant method to localize an inspection robot relative to the geometric features, such as welds, of a structure…”
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Reflection behaviour of SH0 from small defects in thin sheets, with application to EMAT inspection of titanium by Peyton, Christian, Dixon, Steve, Dutton, Benjamin, Vesga, Wilson, Edwards, Rachel S.

“…Defects can arise within the weld during the laser welding process of thin titanium sheets, and it is critical that these defects are detected. Shear…”
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Miniaturised SH EMATs for Fast Robotic Screening of Wall Thinning in Steel Plates by Trushkevych, Oksana, Tabatabaeipour, Morteza, Dixon, Steve, Potter, Mark D. G., Dobie, Gordon, Macleod, Charles, Edwards, Rachel S.

“…Electromagnetic acoustic transducers (EMATs) are well suited to generating and detecting a variety of different ultrasonic wavemodes, without the need for…”
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Ultrasonic guided wave estimation of minimum remaining wall thickness using Gaussian process regression by Tabatabaeipour, Morteza, Tzaferis, Konstantinos, McMillan, Ross, Jackson, William, Dobie, Gordon, Edwards, Rachel S., Trushkevych, Oksana, Gachagan, Anthony

“…[Display omitted] •Instantaneous phase characteristics of guided waves contain a rich source of information for defect characterisation.•Gaussian process…”
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Tunability of the spin reorientation transitions with pressure in NdCo5 by Kumar, Santosh, Patrick, Christopher E., Edwards, Rachel S., Balakrishnan, Geetha, Lees, Martin R., Staunton, Julie B.

“…We present pressure-dependent magnetization measurements carried out in the domain of the spin reorientation transitions (SRTs) of a NdCo5 single crystal. The…”
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Simultaneous detection of acoustic emission and Barkhausen noise during the martensitic transition of a Ni-Mn-Ga magnetic shape-memory alloy by Baró, Jordi, Dixon, Steve, Edwards, Rachel S., Fan, Yichao, Keeble, Dean S., Mañosa, Lluís, Planes, Antoni, Vives, Eduard

“…We present simultaneous measurements of acoustic emission and magnetic Barkhausen noise during the thermally induced martensitic transition in a Ni-Mn-Ga…”
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Temperature contour maps at the strain-induced martensitic transition of a Cu–Zn–Al shape-memory single crystal by Vives, Eduard, Burrows, Susan, Edwards, Rachel S., Dixon, Steve, Mañosa, Lluís, Planes, Antoni, Romero, Ricardo

“…We study temperature changes at the reverse strain-induced martensitic transformation in a Cu–Zn–Al single crystal. Infrared thermal imaging reveals a markedly…”
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Single-Molecule Magnets:  Preparation and Properties of Low Symmetry [Mn4O3(O2CPh-R)4(dbm)3] Complexes with S = 9/2 by Aliaga-Alcalde, Núria, Edwards, Rachel S, Hill, Stephen O, Wernsdorfer, Wolfgang, Folting, Kirsten, Christou, George

“…The preparation and properties of [Mn4O3(O2CPh-R)4(dbm)3] (R = H, p-Me, p-OMe, and o-Cl; dbm- is the anion of dibenzoylmethane) single-molecule magnets (SMMs)…”
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Origin of the fast magnetization tunneling in tetranuclear nickel single-molecule magnets by Hendrickson, David N., Yang, En-Che, Isidro, Rose Marie, Kirman, Cem, Lawrence, Jon, Edwards, Rachel S., Hill, Stephen, Yamaguchi, Akira, Ishimoto, Hidehiko, Wernsdorfer, Wolfgang, Ramsey, Chris, Dalal, Naresh, Olmstead, Marilyn M.

“…The single-molecule magnet behavior of Ni 4 complexes is characterized by magnetization hysteresis loops. The origin of the fast magnetization tunneling is the…”
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A Feasibility Study on Guided Wave- Based Robotic Mapping by Tabatabaeipour, Morteza, Trushkevych, Oksana, Dobie, Gordon, Edwards, Rachel S., Dixon, Steven, MacLeod, Charles, Gachagan, Anthony, Pierce, S. Gareth

“…Ultrasonic guided wave imaging techniques have received much attention in recent years for fast screening of large structures. Here we explore the feasibility…”
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Towards Guided Wave Robotic NDT Inspection: EMAT Size Matters by Trushkevych, Oksana, Dixon, Steven, Tabatabaeipour, Morteza, Dobie, Gordon, Potter, Mark D. G., MacLeod, Charles, Gachagan, Anthony, Pierce, S. Gareth, Edwards, Rachel S.

“…The first steps towards fast robotic screening of wall thinning in the industrially relevant example of 10mm thick steel plates are reported. Electromagnetic…”
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Temperature contour maps at the strain-induced martensitic transitionof a Cu-Zn-Al shape-memory single crystal by Vives, Eduard, Burrows, Susan, Edwards, Rachel S., Dixon, Steve, Mañosa, Lluís, Planes, Antoni, Romero, Ricardo

“…We study temperature changes at the reverse strain-induced martensitic transformation in a Cu-Zn-Al single crystal. Infrared thermal imaging reveals a markedly…”
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Exchange bias in Ni 4 single-molecule magnets by Yang, En-Che, Wernsdorfer, Wolfgang, Hill, Stephen, Edwards, Rachel S., Nakano, Motohiro, Maccagnano, S., Zakharov, Lev N., Rheingold, Arnold L., Christou, George, Hendrickson, David N.

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Ultrasonic Field Modelling for Arbitrary Non-Contact Transducer Source by Jian, X, Dixon, Steve, Edwards, Rachel S

“…We present a model for transient ultrasonic wave generation by Electromagnetic Acoustical Transducers (EMATs). Analytical solutions are currently available…”
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Structural and magnetic properties of GdCo$_{5-x}$Ni$_x by Tedstone, Amy L, Patrick, Christopher E, Kumar, Santosh, Edwards, Rachel S, Lees, Martin R, Balakrishnan, Geetha, Staunton, Julie B

“…Phys. Rev. Materials 3, 034409 (2019) GdCo$_5$ may be considered as two sublattices - one of Gd and one of Co - whose magnetizations are in antiparallel…”
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