Applications of Silicon Carbide for High Temperature Electronics and Sensors
... tempcrat ures near 2600°C. The appearance of &SiC. was rare at these temperatures which seemed to favor growth of the alpha variety. This growth process for producing good quality, single crystal SiC remained essentially unchanged until the work of Tairov, et al., in the 1970’s [7,8] and later by V ...
... tempcrat ures near 2600°C. The appearance of &SiC. was rare at these temperatures which seemed to favor growth of the alpha variety. This growth process for producing good quality, single crystal SiC remained essentially unchanged until the work of Tairov, et al., in the 1970’s [7,8] and later by V ...
An evaluation of switching criteria for ferroelectrics under stress and
... ferroelectric sensors operate within the linear regime with subsequent signal amplification: linearity is more important than signal power. In other applications such as ferroelectric actuators, nonlinear behaviour is a consequence of operating at high power. It is useful to introduce the concept of ...
... ferroelectric sensors operate within the linear regime with subsequent signal amplification: linearity is more important than signal power. In other applications such as ferroelectric actuators, nonlinear behaviour is a consequence of operating at high power. It is useful to introduce the concept of ...
Ability of a Bacterial Chromosome Segment to Invert Is
... the effect of changes in the orientation and chromosomal position of a particular arc of chromosome on the permissivity of inverting other segments of the chromosome. To this end, we have constructeda strain with alarge inversion ( a m to his) involving almost halfof the bacterial chromosome and hav ...
... the effect of changes in the orientation and chromosomal position of a particular arc of chromosome on the permissivity of inverting other segments of the chromosome. To this end, we have constructeda strain with alarge inversion ( a m to his) involving almost halfof the bacterial chromosome and hav ...
FABRICATION OF A DISORDERED AND NANO
... commercially important alloy systems. Many intermetallic compounds which have high melting points and are difficult to elaborate by conventional processing techniques, could be simply synthesized with a homogeneous structure and composition by MA [18]. In addition, AM process technique is able to pr ...
... commercially important alloy systems. Many intermetallic compounds which have high melting points and are difficult to elaborate by conventional processing techniques, could be simply synthesized with a homogeneous structure and composition by MA [18]. In addition, AM process technique is able to pr ...
A DEVICE, A METHOD AND A SYSTEM FOR DETECTING
... the near-field sensors methods, properties of the material can be extracted by ...
... the near-field sensors methods, properties of the material can be extracted by ...
FATIGUE LIFE OF GRAPHITE/EPOXY LAMINATES SUBJECTED TO
... trend is observed from the data in Table III: when |mmin| increases, `t also increases, whereas _ t decreases progressively. Since, from eq. (7), an increase in both the constants results in a poorer response in fatigue, the actual trend of the fatigue life in the case concerned cannot be easily gue ...
... trend is observed from the data in Table III: when |mmin| increases, `t also increases, whereas _ t decreases progressively. Since, from eq. (7), an increase in both the constants results in a poorer response in fatigue, the actual trend of the fatigue life in the case concerned cannot be easily gue ...
Including the effects of pressure and stress in thermodynamic functions
... properties, formability, toughness, corrosion resistance, coating and welding properties. As most of these properties are linked to the non-equilibrium microstructure and chemical composition this connection is often established by experience. The mechanical properties of materials are essential ...
... properties, formability, toughness, corrosion resistance, coating and welding properties. As most of these properties are linked to the non-equilibrium microstructure and chemical composition this connection is often established by experience. The mechanical properties of materials are essential ...
structural implications of ultra-high performance fibre
... innovative bridge design. The optimised material composition results in high compressive strength and non-negligible tensile strength and ductility, provided by multi-microcracking. This allows significant tensile forces to be sustained by elements in bending even without the use of ordinary reinfor ...
... innovative bridge design. The optimised material composition results in high compressive strength and non-negligible tensile strength and ductility, provided by multi-microcracking. This allows significant tensile forces to be sustained by elements in bending even without the use of ordinary reinfor ...
General - Department of Mechanical Engineering
... tanks and thermal protection systems for re-entry applications. Temperatures below room temperature generally cause an increase in strength properties, however the ductility decreases. Ductility and strength may increase or decrease at temperatures above room temperature. This change depends on many ...
... tanks and thermal protection systems for re-entry applications. Temperatures below room temperature generally cause an increase in strength properties, however the ductility decreases. Ductility and strength may increase or decrease at temperatures above room temperature. This change depends on many ...
Tip Streaming from a Drop in the Presence of Surfactants
... When the surfactant is present on a droplet in an imposed flow, the surfactant is swept toward the drop poles, where it can collect to concentrations in excess of those in equilibrium with the bulk solution. These nonequilibrium distributions are most pronounced at dilute bulk concentrations, for wh ...
... When the surfactant is present on a droplet in an imposed flow, the surfactant is swept toward the drop poles, where it can collect to concentrations in excess of those in equilibrium with the bulk solution. These nonequilibrium distributions are most pronounced at dilute bulk concentrations, for wh ...
NANOCRYSTALLINE Ni Al ALLOY OBTAINED BY MECHANICAL
... can be considered only in the case of the milling of Al3Ni + Ni starting mixture. In the second case we infer that in the first step of milling, when the Ni96Al4 and Al powder particles are cold welded during ball collisions, very small regions appear in which Al atoms are dissolved in the lattice o ...
... can be considered only in the case of the milling of Al3Ni + Ni starting mixture. In the second case we infer that in the first step of milling, when the Ni96Al4 and Al powder particles are cold welded during ball collisions, very small regions appear in which Al atoms are dissolved in the lattice o ...
Dynamic propagation of a macrocrack interacting with parallel small
... defined by angle, . Different values of indicates different types of loading conditions ranging from mode-I to mode-II. When is zero degree, then the initial crack becomes perpendicular to the loading direction which induces crack surfaces to open in loading direction and represents mode-I load ...
... defined by angle, . Different values of indicates different types of loading conditions ranging from mode-I to mode-II. When is zero degree, then the initial crack becomes perpendicular to the loading direction which induces crack surfaces to open in loading direction and represents mode-I load ...
Effective Thermophysical Properties of Thermal Interface Materials
... Meter bars are manufactured from a highly conductive material such as aluminum with contacting surface finish within 0.4 µm. The specimen thickness is measured before test using ASTM D 374 - Method C. The single material layer or stacked layers are subjected to 3 M P a pressure so that the thermal co ...
... Meter bars are manufactured from a highly conductive material such as aluminum with contacting surface finish within 0.4 µm. The specimen thickness is measured before test using ASTM D 374 - Method C. The single material layer or stacked layers are subjected to 3 M P a pressure so that the thermal co ...
High hole and electron mobilities using Strained Si
... tendency to deviate from planarity due to strain-driven surface diffusion. However, a planar structure is desired for the MOSFET applications. A specific procedure for growing these films was adopted in order to suppress surface instabilities. The tensile layers have a much reduced tendency to undul ...
... tendency to deviate from planarity due to strain-driven surface diffusion. However, a planar structure is desired for the MOSFET applications. A specific procedure for growing these films was adopted in order to suppress surface instabilities. The tensile layers have a much reduced tendency to undul ...
Crystallographic Anisotropy Control of n-type Bi-Te
... extrusion. The curves consist of three different steps irrespective of the holding temperature during extrusion. Two frictional forces must be taken into account to consider the application of loading. During the (A)-region, relatively low load is applied against the frictional force f1 along the ver ...
... extrusion. The curves consist of three different steps irrespective of the holding temperature during extrusion. Two frictional forces must be taken into account to consider the application of loading. During the (A)-region, relatively low load is applied against the frictional force f1 along the ver ...
Influence of the Tool Geometry on the Machining of
... machining for decades as they have no binding phase in their microstructure. Unlike tungsten carbide, the hardness of the ceramics is less decreasing with increasing temperature. Due to this fact, cutting ceramics have a very good wear resistance, even at high cutting speeds [2] compared to other cu ...
... machining for decades as they have no binding phase in their microstructure. Unlike tungsten carbide, the hardness of the ceramics is less decreasing with increasing temperature. Due to this fact, cutting ceramics have a very good wear resistance, even at high cutting speeds [2] compared to other cu ...
Journal - AIMS Lab
... described via inter-atomic potential functions that are analytical mathematical expressions. The force field employed in this study uses a combination of Lennard-Jones, Buckigham, Morse, Coulombic and three-body bending terms to construct the potential energy landscape. The calculation of electrosta ...
... described via inter-atomic potential functions that are analytical mathematical expressions. The force field employed in this study uses a combination of Lennard-Jones, Buckigham, Morse, Coulombic and three-body bending terms to construct the potential energy landscape. The calculation of electrosta ...
Analysis of the Landslide Movements
... structural geology has been used as a tool to investigate the development and evolution of potential rockslides. The recognition of the processes that triggered the movement is of primary importance to understand the landslide mechanisms. The paper analyses the movement of the landslides from the po ...
... structural geology has been used as a tool to investigate the development and evolution of potential rockslides. The recognition of the processes that triggered the movement is of primary importance to understand the landslide mechanisms. The paper analyses the movement of the landslides from the po ...
Synthesis, Growth and characterization of L-Histidine
... L-histidine hydrobromide (LHHB) crystals were grown successfully by slow evaporation method. LHHB crystal has positive temperature co-efficient to solubility, XRD studies reveal that LHHB crystal crystallizes in orthorhombic structure. FT-IR analysis confirmed the presence of various functional grou ...
... L-histidine hydrobromide (LHHB) crystals were grown successfully by slow evaporation method. LHHB crystal has positive temperature co-efficient to solubility, XRD studies reveal that LHHB crystal crystallizes in orthorhombic structure. FT-IR analysis confirmed the presence of various functional grou ...
Direct Shear Test on Expanded Polystyrene (EPS
... EPS geofoam is characterized by very low density (nearly 100 times lesser than soil) with potentially high compressibility, good flexural strength and high rupture strength in shear. The weakest plane in the failure of EPS geofoam under fill load was found to be at the interface between EPS geofoam ...
... EPS geofoam is characterized by very low density (nearly 100 times lesser than soil) with potentially high compressibility, good flexural strength and high rupture strength in shear. The weakest plane in the failure of EPS geofoam under fill load was found to be at the interface between EPS geofoam ...
etching of nitinol - Advanced Chemical Etching
... Shape memory is the effect of restoring the original shape of a deformed material by heating it. The shape-memory effect in NiTi was discovered in the early sixties at the US Naval Ordnance Laboratory (hence the name Nitinol). Nitinol can exist in two different solid structures: austenitic or marten ...
... Shape memory is the effect of restoring the original shape of a deformed material by heating it. The shape-memory effect in NiTi was discovered in the early sixties at the US Naval Ordnance Laboratory (hence the name Nitinol). Nitinol can exist in two different solid structures: austenitic or marten ...
Slide 1
... At lower temperature (< 900C) the yield point of the Si lattice is sufficiently high that the substrate behaves elastically. During cooling, the thermal stress is removed and the substrate returns to its original shape If the stress exceeds a critical values, the substrate will yield plastically ...
... At lower temperature (< 900C) the yield point of the Si lattice is sufficiently high that the substrate behaves elastically. During cooling, the thermal stress is removed and the substrate returns to its original shape If the stress exceeds a critical values, the substrate will yield plastically ...
Theoretical Study on Electronic, Optical Properties and
... conductor material, while the TcP4 is a semiconductor material with a wide direct band gap. Therefore, here we only investigate the optical properties of TcP4. The complex dielectric function of TcP4 at zero pressure is presented in Figure 4. In order to discuss the absorption coefficient of TcP4 u ...
... conductor material, while the TcP4 is a semiconductor material with a wide direct band gap. Therefore, here we only investigate the optical properties of TcP4. The complex dielectric function of TcP4 at zero pressure is presented in Figure 4. In order to discuss the absorption coefficient of TcP4 u ...
full paper
... sky spheres which correspond to the six planets known at that time. The model gives the right quantitative relations between the radii of the planet orbits. It was published in the book under the name “Prodromos dissertationum cosmographicarum seu Mysterium cosmographicum” (Harbinger reasoning cosmo ...
... sky spheres which correspond to the six planets known at that time. The model gives the right quantitative relations between the radii of the planet orbits. It was published in the book under the name “Prodromos dissertationum cosmographicarum seu Mysterium cosmographicum” (Harbinger reasoning cosmo ...
Understanding Damping Techniques for Noise and Vibration Control
... An automobile suspension is a good example of damped isolation. Shock absorbers dissipate energy by pumping a fluid through orifices that offer a predetermined resistance to highvelocity flow. Many isolation systems use elastomeric materials to provide both the spring force and damping. Some rubbers ...
... An automobile suspension is a good example of damped isolation. Shock absorbers dissipate energy by pumping a fluid through orifices that offer a predetermined resistance to highvelocity flow. Many isolation systems use elastomeric materials to provide both the spring force and damping. Some rubbers ...