ipc-t-50 terms and definitions
... A document that depicts the physical relationship of two or more parts, a combination of parts and subordinate assemblies, or a group of assemblies required to form an assembly of a higher order. ...
... A document that depicts the physical relationship of two or more parts, a combination of parts and subordinate assemblies, or a group of assemblies required to form an assembly of a higher order. ...
Beryllium: Properties and Applications Laura Coyle I. Introduction
... cost by up to 50%. Aluminum-Beryllium is a lower cost alternative but the mixture negatively impacts many of the desired properties of pure beryllium. For fabrication of the mirrors themselves, it is often more cost effective to use near-net shaped HIP rather than machining a blank, especially for l ...
... cost by up to 50%. Aluminum-Beryllium is a lower cost alternative but the mixture negatively impacts many of the desired properties of pure beryllium. For fabrication of the mirrors themselves, it is often more cost effective to use near-net shaped HIP rather than machining a blank, especially for l ...
the article
... The hardness of diamond, its most evident property, was the first to be exploited by industry, and still underpins many of its most common uses. In wood and metal drilling and machining, in cutting stone and concrete, in grinding and polishing all manner of materials, in wire-drawing dies, in mining ...
... The hardness of diamond, its most evident property, was the first to be exploited by industry, and still underpins many of its most common uses. In wood and metal drilling and machining, in cutting stone and concrete, in grinding and polishing all manner of materials, in wire-drawing dies, in mining ...
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- ...
Nanoporous molecular crystals - ORCA
... guests within one-dimensional channels of 6 A (Fig. 3).118,119 Removal of the included guest from the pseudohexagonal crystals (space group ¼ P63/m) can result in the formation of a dense monoclinic crystal or, by careful treatment of the benzene-containing inclusion compound under vacuum, an unsolv ...
... guests within one-dimensional channels of 6 A (Fig. 3).118,119 Removal of the included guest from the pseudohexagonal crystals (space group ¼ P63/m) can result in the formation of a dense monoclinic crystal or, by careful treatment of the benzene-containing inclusion compound under vacuum, an unsolv ...
silicon
... the various problems as we so easily see it in retrospect today. On the contrary, silicon’s march forward was often an adventurous path that had many individual successes, but also erroneous paths and fallacious assessments, as is common in all research- and development activities. The silicon semic ...
... the various problems as we so easily see it in retrospect today. On the contrary, silicon’s march forward was often an adventurous path that had many individual successes, but also erroneous paths and fallacious assessments, as is common in all research- and development activities. The silicon semic ...
Growth and characterization of pure and disodium hydrogen
... strong absorption peak near the wavelength of 236 nm in pure KDP crystal. Whereas in DSHP mixed with KDP crystal the absorption range is shifted towards the lower wavelength side around 203 nm. The change in the cutoff wavelength is due to the addition of disodium hydrogen phosphate which is of diff ...
... strong absorption peak near the wavelength of 236 nm in pure KDP crystal. Whereas in DSHP mixed with KDP crystal the absorption range is shifted towards the lower wavelength side around 203 nm. The change in the cutoff wavelength is due to the addition of disodium hydrogen phosphate which is of diff ...
PDF - JMRT
... applications. Here is relevant to remind that since the turn of the XIX century it was already known that diamond was an allotropic form of carbon. By then, it became clear that by applying enough pressure and temperature, it would be possible to convert the hexagonal structure of graphite into the ...
... applications. Here is relevant to remind that since the turn of the XIX century it was already known that diamond was an allotropic form of carbon. By then, it became clear that by applying enough pressure and temperature, it would be possible to convert the hexagonal structure of graphite into the ...
On the use of poroelastic materials for the control of the
... 15 prove that this approach could be successfully used for the prediction of transmission losses of multilayered systems involving poroelastic materials in the case that the latter are not directly bonded to the vibrating parts of the system. Rigid body and limp model: Two other equivalent fluid app ...
... 15 prove that this approach could be successfully used for the prediction of transmission losses of multilayered systems involving poroelastic materials in the case that the latter are not directly bonded to the vibrating parts of the system. Rigid body and limp model: Two other equivalent fluid app ...
Star-Shaped Conjugated Systems
... Recently Gierschner et al. [30] and Bednarz, Bäuerle et al. [31] proposed semi- to non-empirical equations for the long-wavelength band of conjugated oligomers. The Bednarz algorithm is based on Frenkel exciton models. Its accuracy of interpolations is high; however, the prediction of and E by e ...
... Recently Gierschner et al. [30] and Bednarz, Bäuerle et al. [31] proposed semi- to non-empirical equations for the long-wavelength band of conjugated oligomers. The Bednarz algorithm is based on Frenkel exciton models. Its accuracy of interpolations is high; however, the prediction of and E by e ...
The birth of topological insulators
... the next-generation topological insulators is closely related to the Dirac electronic structure of graphene, which has a linear energy–momentum relationship like that of a relativistic particle (and is known as a Dirac cone). Graphene, which consists of a single layer of carbon atoms, has been an ex ...
... the next-generation topological insulators is closely related to the Dirac electronic structure of graphene, which has a linear energy–momentum relationship like that of a relativistic particle (and is known as a Dirac cone). Graphene, which consists of a single layer of carbon atoms, has been an ex ...
The birth of topological insulators
... the next-generation topological insulators is closely related to the Dirac electronic structure of graphene, which has a linear energy–momentum relationship like that of a relativistic particle (and is known as a Dirac cone). Graphene, which consists of a single layer of carbon atoms, has been an ex ...
... the next-generation topological insulators is closely related to the Dirac electronic structure of graphene, which has a linear energy–momentum relationship like that of a relativistic particle (and is known as a Dirac cone). Graphene, which consists of a single layer of carbon atoms, has been an ex ...
Revisit and insight into the dilemma of strong and brittle materials
... depend on the type and structure of individual GBs introduced during initial processing or modified by subsequent condition. In order to study the relation of GB properties to GB type and structure, systematic experimental investigation has been extensively performed by using orientation-controlled b ...
... depend on the type and structure of individual GBs introduced during initial processing or modified by subsequent condition. In order to study the relation of GB properties to GB type and structure, systematic experimental investigation has been extensively performed by using orientation-controlled b ...
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 ...
I Ceramic Material Classes - Wiley-VCH
... well as the careful control of processing conditions and of the materials microstructure. They usually comprise oxides, which do not quite fall within the traditional understanding of the term silicate materials and ceramics. Oxides found in these ceramics include mostly oxides of metals such as ...
... well as the careful control of processing conditions and of the materials microstructure. They usually comprise oxides, which do not quite fall within the traditional understanding of the term silicate materials and ceramics. Oxides found in these ceramics include mostly oxides of metals such as ...
PDF
... Optical (NLO) applications. Pure KDP single crystals and KDP crystals doped with N-N′ allylthiourea were grown by the method of slow evaporation from aqueous solutions. The grown pure and doped crystals were confirmed by X-ray single crystal and powder diffraction studies. The pure and doped crystal ...
... Optical (NLO) applications. Pure KDP single crystals and KDP crystals doped with N-N′ allylthiourea were grown by the method of slow evaporation from aqueous solutions. The grown pure and doped crystals were confirmed by X-ray single crystal and powder diffraction studies. The pure and doped crystal ...
High-power ultrafast thin disk laser oscillators and their potential for
... operation with sub-6-fs pulse duration. Unfortunately, it is not suitable for power scaling to highest power levels because of thermal issues (see Sect. 4). Furthermore, it requires a pump wavelength in the blue-green spectral region, for which no high-power diodes are available. Among the directly ...
... operation with sub-6-fs pulse duration. Unfortunately, it is not suitable for power scaling to highest power levels because of thermal issues (see Sect. 4). Furthermore, it requires a pump wavelength in the blue-green spectral region, for which no high-power diodes are available. Among the directly ...
Supporting Information
... in the latter system. The heat-treatment at 200–300 C gives rise to a significant narrowing of the pore size distribution of the present nanohybrids with the average diameter of ~3–3.5 nm. This result indicates the improved ordering of mesopores via the removal of larger mesopores in the as-prepare ...
... in the latter system. The heat-treatment at 200–300 C gives rise to a significant narrowing of the pore size distribution of the present nanohybrids with the average diameter of ~3–3.5 nm. This result indicates the improved ordering of mesopores via the removal of larger mesopores in the as-prepare ...
Defect accumulation behaviour in hcp metals and alloys - PolyU
... play a role on the macroscopic behaviour of irradiated materials due to damage accumulation through the kinetics of the reactions among the point defects and their clusters with the existing microstructure. Historically, the understanding of macroscopic behaviour of materials due to damage accumulat ...
... play a role on the macroscopic behaviour of irradiated materials due to damage accumulation through the kinetics of the reactions among the point defects and their clusters with the existing microstructure. Historically, the understanding of macroscopic behaviour of materials due to damage accumulat ...
Icarus Geologic mapping of the Zal region of Io
... The second high resolution observation of the Zal region was also a near-terminator observation with a spatial resolution of 335 m/pixel and was obtained in February 2000 (orbit I27; Fig. 1). This mosaic serves as the base for our map. Turtle et al. (2001) determined that the western margin scarp of ...
... The second high resolution observation of the Zal region was also a near-terminator observation with a spatial resolution of 335 m/pixel and was obtained in February 2000 (orbit I27; Fig. 1). This mosaic serves as the base for our map. Turtle et al. (2001) determined that the western margin scarp of ...
Recent Trends in Optical Lithography
... support from the Defense Advanced Research Projects Agency (DARPA), Lincoln Laboratory facilitated much of the development in these areas, largely through collaborations with suppliers and research laboratories [2]. It also had built and installed in its clean rooms the world’s first 193-nm large-fi ...
... support from the Defense Advanced Research Projects Agency (DARPA), Lincoln Laboratory facilitated much of the development in these areas, largely through collaborations with suppliers and research laboratories [2]. It also had built and installed in its clean rooms the world’s first 193-nm large-fi ...
History of metamaterials
The history of metamaterials begins with artificial dielectrics in microwave engineering as it developed just after World War II. Yet, there are seminal explorations of artificial materials for manipulating electromagnetic waves at the end of the 19th century.Hence, the history of metamaterials is essentially a history of developing certain types of manufactured materials, which interact at radio frequency, microwave, and later optical frequencies.As the science of materials has advanced, photonic materials have been developed which use the photon of light as the fundamental carrier of information. This has led to photonic crystals, and at the beginning of the new millennium, the proof of principle for functioning metamaterials with a negative index of refraction in the microwave range at 10.5 Gigahertz. This was followed by the first proof of principle for metamaterial cloaking (shielding an object from view), also in the microwave range, about six years later. However, a cloak that can conceal objects across the entire electromagnetic spectrum is still decades away. Many physics and engineering problems need to be solved.Nevertheless, negative refractive materials have led to the development of metamaterial antennas and metamaterial microwave lenses for miniature wireless system antennas which are more efficient than their conventional counterparts. Also, metamaterial antennas are now commercially available. Meanwhile, subwavelength focusing with the superlens is also a part of present-day metamaterials research.