thesis_revised
... these materials for aforementioned applications. Polycrystalline Sr(Bi0.9Sm0.1)2Ta2O9 (SBSmT) ceramics were fabricated via the promising low temperature molten salt synthesis route using potassium chloride (KCl) as a flux material. The mono-phasic perovskite crystal structure was confirmed by the X- ...
... these materials for aforementioned applications. Polycrystalline Sr(Bi0.9Sm0.1)2Ta2O9 (SBSmT) ceramics were fabricated via the promising low temperature molten salt synthesis route using potassium chloride (KCl) as a flux material. The mono-phasic perovskite crystal structure was confirmed by the X- ...
thin film opal photonic crystals - Elpub Wuppertal
... The movement of electrons in semiconductors is well understood and can be controlled and harnessed in electronic devices; this is the basis of modern electronics. The next goal is the replacement of microelectronic components by optical micro-devices. The flow of light is much harder to control and ...
... The movement of electrons in semiconductors is well understood and can be controlled and harnessed in electronic devices; this is the basis of modern electronics. The next goal is the replacement of microelectronic components by optical micro-devices. The flow of light is much harder to control and ...
growth and characterization of methyl orange doped kap
... UV- visible spectrophotometer within the wavelength range of 190 nm to 1100 nm. The traced UV spectrum is shown in Figure No.4 (a). From the UV spectrum it was observed that both Undoped and Methyl orange doped KAP crystals have a lower cut off wavelength at 290 nm. The addition of dopant does not a ...
... UV- visible spectrophotometer within the wavelength range of 190 nm to 1100 nm. The traced UV spectrum is shown in Figure No.4 (a). From the UV spectrum it was observed that both Undoped and Methyl orange doped KAP crystals have a lower cut off wavelength at 290 nm. The addition of dopant does not a ...
high strain rate behaviour of woven composite
... The thesis centres on the dynamic behaviour of woven composite materials. The increase in the use of these materials in the aerospace industry demands a reliable constitutive damage model to predict their response under high strain rate loading. The current available models do not include rate effec ...
... The thesis centres on the dynamic behaviour of woven composite materials. The increase in the use of these materials in the aerospace industry demands a reliable constitutive damage model to predict their response under high strain rate loading. The current available models do not include rate effec ...
Revisit and insight into the dilemma of strong and brittle materials
... 1.2. Question to conventional strengthening by grain refinement Let us consider the physical origin of effects of GBs, either being “beneficial” or “detrimental”. It is well known that the presence of GBs becomes a potential barrier to dislocation motion, resulting in the generation of local stress co ...
... 1.2. Question to conventional strengthening by grain refinement Let us consider the physical origin of effects of GBs, either being “beneficial” or “detrimental”. It is well known that the presence of GBs becomes a potential barrier to dislocation motion, resulting in the generation of local stress co ...
Nanoparticle, NiO, Nanocomposite, Sol-gel, UV
... The expansion fro m single-co mponent material to composite systems becomes an active area of research because different composites offer great possibilit ies for tailoring the performance of the final product[1]. In recent years, nanoscale transition metal o xides (TMOs) have been intensively studi ...
... The expansion fro m single-co mponent material to composite systems becomes an active area of research because different composites offer great possibilit ies for tailoring the performance of the final product[1]. In recent years, nanoscale transition metal o xides (TMOs) have been intensively studi ...
10 - E-Prints Complutense
... amor, comprensión, paciencia, por estar siempre cerca de mí. No se conforma con hacerme sonreír cada día, también tiene que aportar su granito de arena cada vez que puede, ya sea en el diseño de la portada de mi tesis, en el cartel de las Paces o en cualquier cosa. No podría encontrar palabras para ...
... amor, comprensión, paciencia, por estar siempre cerca de mí. No se conforma con hacerme sonreír cada día, también tiene que aportar su granito de arena cada vez que puede, ya sea en el diseño de la portada de mi tesis, en el cartel de las Paces o en cualquier cosa. No podría encontrar palabras para ...
Icarus Geologic mapping of the Zal region of Io
... Radebaugh et al. (2001), in which the ∼300 km long fracture that separates north and south Zal Mons and that bounds Zal Patera to the west is the source of the lavas flowing into Zal Patera. We further investigated this hypothesis in our mapping. The prominent red diffuse deposits observed in distant ...
... Radebaugh et al. (2001), in which the ∼300 km long fracture that separates north and south Zal Mons and that bounds Zal Patera to the west is the source of the lavas flowing into Zal Patera. We further investigated this hypothesis in our mapping. The prominent red diffuse deposits observed in distant ...
SINTERED MATERIALS WITH HIGH POROSITY
... increasing porosity. From the data given above, one can see that V1 increases linearly with the increasing size range of the powder used. Therefore the tensile strength of the sheet decreases. With regard to the tensile strength, it is not unimportant whether the material porosity consists of many a ...
... increasing porosity. From the data given above, one can see that V1 increases linearly with the increasing size range of the powder used. Therefore the tensile strength of the sheet decreases. With regard to the tensile strength, it is not unimportant whether the material porosity consists of many a ...
Cadmium zinc telluride and its use as a nuclear radiation detector
... In this review we have attempted to present a balanced overview of what is the result of a great deal of effort by many researchers around the world who have contributed to the development of CZT as a nuclear radiation detector material. Invariably when writing such a review one cannot ensure that a ...
... In this review we have attempted to present a balanced overview of what is the result of a great deal of effort by many researchers around the world who have contributed to the development of CZT as a nuclear radiation detector material. Invariably when writing such a review one cannot ensure that a ...
Anisotropy of Elastic Behavior
... • The 21 independent elastic constants can be reduced still further by considering the symmetry conditions found in different crystal structures. • In Isotropic case, the elastic constants are reduced from 21 to 2. • Different crystal systems can be characterized exclusively by their symmetries. Ta ...
... • The 21 independent elastic constants can be reduced still further by considering the symmetry conditions found in different crystal structures. • In Isotropic case, the elastic constants are reduced from 21 to 2. • Different crystal systems can be characterized exclusively by their symmetries. Ta ...
XRD and FT-IR Studies on Lead (II) Nitrate doped Histidine Picrate
... wide transparency range, fast response and high damage threshold for device applications. However, the shortcomings of aromatic crystals, such as poor physicochemical stability, low hardness and cleavage tendency hinder their device applications [1- 3]. Inorganic NLO materials have excellent mechani ...
... wide transparency range, fast response and high damage threshold for device applications. However, the shortcomings of aromatic crystals, such as poor physicochemical stability, low hardness and cleavage tendency hinder their device applications [1- 3]. Inorganic NLO materials have excellent mechani ...
Design of an integrated optical source of twin photons Ivan Avrutsky
... In integrated optical devices, light is confined to optical waveguides. To achieve the phase synchronism inside the waveguide, one can use optical anisotropy by routing waveguides along a suitable direction in a crystal. One can also use a quasi-phase-matching in waveguide gratings by combining the ...
... In integrated optical devices, light is confined to optical waveguides. To achieve the phase synchronism inside the waveguide, one can use optical anisotropy by routing waveguides along a suitable direction in a crystal. One can also use a quasi-phase-matching in waveguide gratings by combining the ...
Recent Trends in Optical Lithography
... and dependent on the angle of propagation and crystalline orientation. Also, it is much larger at 157 nm than at 193 nm. To overcome this problem, it is necessary to employ lenses made of calcium fluoride with two different crystalline orientations. Again, crystal growers bear the burden of ensuring ...
... and dependent on the angle of propagation and crystalline orientation. Also, it is much larger at 157 nm than at 193 nm. To overcome this problem, it is necessary to employ lenses made of calcium fluoride with two different crystalline orientations. Again, crystal growers bear the burden of ensuring ...
as PDF
... The soft-combustion technique offers several advantages over conventional high temperature and other low temperature methods. Materials prepared via the solid-state route contain two-phase mixtures due to the inhomogeneity caused by physical mixing of the raw materials. The particle morphology is of ...
... The soft-combustion technique offers several advantages over conventional high temperature and other low temperature methods. Materials prepared via the solid-state route contain two-phase mixtures due to the inhomogeneity caused by physical mixing of the raw materials. The particle morphology is of ...
Preparation of multifunctional coating materials and their
... methods for functional components are required. For future optical and optoelectronic components such as organic light emitting devices, optical filters and devices capable of modulating light, these multi-functional materials, which have inorganic and organic material properties, offer an extraordi ...
... methods for functional components are required. For future optical and optoelectronic components such as organic light emitting devices, optical filters and devices capable of modulating light, these multi-functional materials, which have inorganic and organic material properties, offer an extraordi ...
Bulk materials — — Part 1: Sampling and qualitative determination
... samples. The applicability of polarized light microscopy can be extended by the use of simple treatments such as ashing and treatment with acid. However, there are some classes of commercial asbestos-containing material that cannot be reliably analyzed by polarized light microscopy. The occurrence o ...
... samples. The applicability of polarized light microscopy can be extended by the use of simple treatments such as ashing and treatment with acid. However, there are some classes of commercial asbestos-containing material that cannot be reliably analyzed by polarized light microscopy. The occurrence o ...
Biomimetic design of materials and biomaterials inspired by the
... fibrils (Levi-Kalisman et al. 2001). The authors hypothesized that, next to such fibrils, discontinuous layers (or patches) of aspartic acid-rich proteins might be detected; the silk-like proteins should mainly be present within the sheets and intracrystalline acidic glycoproteins would also be presen ...
... fibrils (Levi-Kalisman et al. 2001). The authors hypothesized that, next to such fibrils, discontinuous layers (or patches) of aspartic acid-rich proteins might be detected; the silk-like proteins should mainly be present within the sheets and intracrystalline acidic glycoproteins would also be presen ...
Dislocations
... be around E/10, E being the modulus of elasticity This strength is a function of the cohesive forces between the atoms Experimental values lie between 10 and 1000 times below this value These values are a due to very small flaws occurring throughout the material referred to as stress raisers ...
... be around E/10, E being the modulus of elasticity This strength is a function of the cohesive forces between the atoms Experimental values lie between 10 and 1000 times below this value These values are a due to very small flaws occurring throughout the material referred to as stress raisers ...
Chapter 18 Starch-based plastics
... apart from their low resistance to impacts. Moreover, in the case of thermoformed products, the thinness of formed products limits the use of starch derivatives. According to Levesque (2001), the use of starch and its derivatives as the only component of biodegradable materials was object of a numbe ...
... apart from their low resistance to impacts. Moreover, in the case of thermoformed products, the thinness of formed products limits the use of starch derivatives. According to Levesque (2001), the use of starch and its derivatives as the only component of biodegradable materials was object of a numbe ...
Mechanical Properties and Fracture Patterns of Graphene (Graphitic
... potential for applications in different fields, such as energy storage [28, 37], solar cells [34] and nanoelectronics [36]. However, in its pristine form, graphene is a zero band gap semiconductor, which poses limitations to its use in applications such as digital transistors. There are several ways ...
... potential for applications in different fields, such as energy storage [28, 37], solar cells [34] and nanoelectronics [36]. However, in its pristine form, graphene is a zero band gap semiconductor, which poses limitations to its use in applications such as digital transistors. There are several ways ...
Preparation and properties of superfine Mg(OH)2 flame retardant
... particles will extrude on the surface. Moreover, the interface of the particles and the polyethylene is very distinctive. The surface of the particles is not soaked by the resin. When the modified superfine magnesium hydroxide is added, the particle surface of magnesium hydroxide has floc fromation. ...
... particles will extrude on the surface. Moreover, the interface of the particles and the polyethylene is very distinctive. The surface of the particles is not soaked by the resin. When the modified superfine magnesium hydroxide is added, the particle surface of magnesium hydroxide has floc fromation. ...
182.pdf
... where the density of states is higher. Therefore, phenomena which require high density of states will be enhanced at the band edges. Also it is predicted that phenomena like superprism and emission of active species embedded in a photonic crystal can be enhanced in these high energy regions 关28,29兴. ...
... where the density of states is higher. Therefore, phenomena which require high density of states will be enhanced at the band edges. Also it is predicted that phenomena like superprism and emission of active species embedded in a photonic crystal can be enhanced in these high energy regions 关28,29兴. ...
Mini- Implant Materials: An Overview
... According to Strock, 9 the iridioplatinum mesh work of Greenfield 8 was not strong enough to withstand the forces placed on it. At that point in time implants were frequently made of Lead and Iron, which eroded intra-orally and also caused bone resorption. Strock began to use the screw principle of ...
... According to Strock, 9 the iridioplatinum mesh work of Greenfield 8 was not strong enough to withstand the forces placed on it. At that point in time implants were frequently made of Lead and Iron, which eroded intra-orally and also caused bone resorption. Strock began to use the screw principle of ...
chapter 9
... than Cr-doped ZnO nanostructures. Also same scenario was observed in the degradation efficiency of the organic pollutant, M.B dye. The reason may be due to the excellent substitution of Al nanoparticles in ZnO which is also confirmed by EDX. This enhancement is possible because ionic radius of Al (0 ...
... than Cr-doped ZnO nanostructures. Also same scenario was observed in the degradation efficiency of the organic pollutant, M.B dye. The reason may be due to the excellent substitution of Al nanoparticles in ZnO which is also confirmed by EDX. This enhancement is possible because ionic radius of Al (0 ...