Materials Literature
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Photo-excited precession of magnetization in (Ga,Mn)As is investigated by measuring time-resolved magneto-optical response and transient differential reflectivity with pump-and-probe technique. In the time region less than 1 ps, rapidly oscillating and spike-like signals are observed, respectively, with excitation of…
Detection and identification of important biological targets, such as DNA, proteins, and diseased human cells are crucial for early diagnosis and prognosis. The key to discriminate healthy cells from the diseased cells is the biophysical properties that differ radically. Micro and nanosystems, such as solid-state micr…
Mediante el método Sol-Gel se obtuvieron óxidos mixtos de ZrO2-SiO2 de tres\nrelaciones molares (25:75, 50:50, 75:25). Se trataron térmicamente a diferentes\ntemperaturas (400 °C, 600 °C, 800 °C y 1000°C). A fin de analizar el efecto del\ntamaño de partícula y la estructura cristalina de los polvos obtenidos en la\ndi…
Shape Memory Alloys (SMAs) are active metallic materials classified as “smart” or “intelligent” materials along with piezoelectric ceramic and polymers, electro-active plastics, electro-rheological and magneto-rheological fluids and others. SMAs show a multitude of different and dependent properties interesting for te…
ABSTRACT Doped poly(p‐phenylene vinylene) (dPPV) is mixed with modified zeolite Y to improve the selective and sensitive response of zeolite Y toward three different ketone vapors (acetone, methyl ethyl ketone, and methyl iso‐butyl ketone), which are known as the toxic components. Zeolite Y (Si/Al 5.1, Na+) or NaY is…
Shape memory alloys (SMA) are thermally activated smart materials. Due to their ability to change into a previously imprinted actual shape through the means of thermal activation, they are suitable as actuators for mechatronical systems. Despite of the advantages shape memory alloy actuators provide, these elements ar…
Having the correct camouflage for the current surroundings increases the safety of personnel and can provide a tactical advantage. However, theatres of war are rarely homogeneous and this leads to a compromise in order for the pattern to work in different subsets. In this work we take inspiration from the photonic str…
Piezoelectric, magnetic and shape memory alloy (SMA) materials offer unique capabilities for energy harvesting and reduced energy requirements in aerospace, aeronautic, automotive, industrial and biomedical applications. However, all of these materials exhibit creep, rate-dependent hysteresis, and constitutive nonline…
PPy-based membranes exchange ions with electrolyte through reversible redox processes and hence are best suited as electrodes for batteries and super capacitors. The energy density of batteries and super capacitors are dependent on the specific capacitance of the conducting polymer and can be represented through a mec…
Shape memory alloys (SMA) can be utilized as electrical activated drives for valve applications. By using the high actuation forces and medium strokes in combination with SMA intrinsic sensor functions, smart and versatile valve elements for multi-purpose applications can be designed. The sensoric functions, based on…
Thin films and Schottky diodes dots of ruthenium (Ru) on bulk-grown n-type-6-hexagonal-silicon carbide (6H-SiC) were annealed isochronally in a vacuum furnace at temperatures ranging from 500–1,000 °C. Rutherford backscattering spectroscopy analysis of the thin films showed formation of ruthenium silicide (Ru 2 Si 3 )…
"Preface: Focus on complex metallic phases." Science and Technology of Advanced Materials, 15(5), pp. –
The cover image shows the two failure mechanisms that occur when graphene is under a central load; in brittle bond breaking, cracks occur along the loading domain edge, whereas in plastic relaxation, cracks form inside the thermal control domain. In their paper on p. 2749, H. Chen et al. reveal that the mechanical pro…
Aging gas transmission pipelines are prone to internal corrosion due to the presence of carbon dioxide and hydrogen sulphide in the natural gas constituents. Commonly, the in-line inspection tool known as Pipeline Inspection Gauge (PIG) is applied to perform the corrosion inspection of the pipeline. This paper describ…
Manned and unmanned aircraft are commonly manufactured from lightweight composite materials, replacing heavier metallic aircraft materials. Here, we describe a collaborative industrial-academic effort to develop novel microvascular composites that offer thermal and structural multifunctionality via embedded micro-capi…
The inclusion of latent catalytic healing agents (CHAs) during layup of fibre-reinforced polymer (FRP) composite specimens yields a functionalised composite material with the capability to self-repair. Strategies for preventing the reaction of CHAs with prepreg resins during curing of the host material are explored. T…
Shape memory polymers (SMP) are a class of stimuli-responsive materials that are able to respond to external stimulus such as heat by altering their shape. Bio-compatible SMPs have a number of advantages over existing SMP materials and are being studied extensively for biomedical and clinical applications. Polymer ble…
Magnetic shape memory alloys (MSMAs) are materials commonly used for actuation, sensing, and/or power harvesting applications. While the actuation response of MSMAs can be fairly accurately predicted by currently available constitutive models, the power harvesting and/or sensing performance is not predicted as well. T…
In this study magnetic force microscopy (MFM), piezoresponse force microscopy (PFM), and the newly developed piezomagnetic force microscopy (PmFM) techniques are used to probe the ferroelectric and ferromagnetic properties of BiFeO3-LiMn2O4 (BFO-LMO) heterostructures at nano-scale. The PmFM technique is also used to p…
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