Materials Literature
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We have determined the dielectric functions of ZnO:Ga and ${\mathrm{In}}_{2}{\mathrm{O}}_{3}:\mathrm{Sn}$ with different carrier concentrations by spectroscopic ellipsometry. The dielectric functions have been obtained from ellipsometry analyses using the Drude and Tauc-Lorentz models. With increasing Hall carrier con…
Experimental deformation micromechanics of natural cellulose fibers using Raman spectroscopy and X-ray diffraction have been widely reported. However, little has been published on the direct measurements of the mechanical properties, and in particular the elastic modulus, of the highly crystalline material in the nati…
Single-walled carbon nanotubes (SWCNT) functionalized with amino groups were prepared via chemical modification of carboxyl groups introduced on the carbon nanotube surface. Two different approaches (amide and amine-moieties) were used to produce the amino-functionalized nanotubes. The amino-termination allows further…
Abstract Nanotechnology is the study and development of materials at nano levels. It is one of the rapidly growing scientific disciplines due to its enormous potential in creating novel materials that have advanced applications. This technology has tremendously impacted many different science and engineering disciplin…
Abstract Summary: Medical grade poly(vinyl chloride) was modified by RF plasma‐deposition of teflon‐like coatings to create a platform for the physisorption of PEO‐containing copolymers, Pluronics®. Thin teflon‐like coatings were deposited in an RF‐plasma reactor by plasma‐enhanced chemical vapor deposition (PE‐CVD) m…
Abstract Summary: A pyrene end‐labeled amphiphilic block copolymer, poly( ε ‐caprolactone)‐ block ‐poly[6‐ O ‐(4‐vinylbenzyl)‐ D ‐galactose] (Py‐PCL‐ b ‐PVBG), was synthesized by a four‐step method. The aggregation behavior of the diblock copolymer in solution was studied by monitoring the fluorescence of pyrene. TEM…
Purpose Drape of the fabric is its ability to hang freely in graceful folds when some area of it is supported over a surface and the rest is unsupported. When two‐dimensional fabrics are converted to three‐dimensional garment forms, a number of operations are required which affect drape behaviour of the fabric while p…
We study the evolution of the morphology of ${\mathrm{S}\mathrm{i}}_{0.75}{\mathrm{G}\mathrm{e}}_{0.25}$ strained layers using a wide range of deposition times, $60<\ensuremath{\tau}<2400\text{ }\text{ }\mathrm{s}$, at $600\text{ }\ifmmode^\circ\else\textdegree\fi{}\mathrm{C}$ on laser textured substrates with m…
Abstract It is known that friction deposited polytetrafluoroethylene (PTFE) layers are able to nucleate crystallization of thin films of isotactic polypropylene (iPP). In order to investigate the influence of PTFE on the crystallization behavior and morphology of iPP in bulk, PTFE‐particles of two different sizes in v…
Abstract The intercalation and exfoliation of talc have been realized by solid‐state shear compounding (S 3 C) using pan‐mill equipment that can exert fairly strong shear forces and has multifunctions such as pulverizing, mixing, and activation on materials. The structural features of pan‐mill also show prospective in…
Purpose The paper discusses the prediction of shirt patterns for different body sizes using multiple linear regression (MLR). Design/methodology/approach – A total of 29 pattern parameters from men's tailor‐made shirt and 34 body parameters obtained from a body scanner were designed for analysis. MLR has been applied…
Calcified organic substances in the skeleton contain a protein-polysaccharide complex taking a key role in the regulation of bio-calcification. However, information concerning the matrix proteins in alcyonarian and their effect on calcification process is still unknown. For this reason, we have studied the organic mat…
The microstructure and high temperature magnetic properties of Fe–Co–2V and Fe–Co–2V–0.3Nb alloys have been investigated. Aging at 600 °C, γ2 phases precipitate whose size and volume fraction increase with increasing aging time. A roughly linear relationship between magnetic coercivity Hc and volume fraction of the γ2…
Purpose To provide researchers with the details of developments in instruments to measure fabric drape and review the literature related to fabric drape. Design/methodology/approach – In recent years, there has been a renewed interest in investigating the aesthetic behavior of fabrics due to the developments in object…
Continuum damage models describe the changes of material stiffness and strength, caused by the evolution of defects, in the framework of continuum mechanics. In many materials, a fast evolution of defects leads to stress–strain laws with softening, which creates serious mathematical and numerical problems. To regulari…
Recently discovered chiral properties of several bent-core smectic liquid crystal phases are summarized and discussed in detail under the assumption that typical bent-core molecules may exist in chiral conformational states and are achiral only on average. Results of atomistic computer simulations are presented which…
Photoluminescence (PL) spectra induced by ultraviolet photons were measured for amorphous hafnia and zirconia deposited by plasma-enhanced chemical-vapor deposition (PECVD), amorphous hafnia deposited by pulse laser deposition, and crystalline yttria-stabilized zirconia. Two kinds of samples were prepared for both haf…
Using vibrating-sample magnetometry, magnetic properties of iron-filled multiwalled carbon nanotubes have been investigated. The field dependence of dc magnetization at high magnetic fields suggests that these tubes behave as a one-dimensional exchange-coupled ferromagnetic system. At 5K, the saturation magnetization…
Wie aktiviert man Gold? Indem man die Struktur nanoskaliger Au-Partikel so beeinflusst, dass entweder viele Grenzflächenplätze oder viele niederkoordinierte Au-Atome vorliegen. Dieses Prinzip veranschaulichen Modellrechnungen für die Oxidation von CO an einem Au-Nanocluster auf einem Rutil-Träger, der am Übergangszust…
The effects of floppy modes in the thermodynamical properties of a system are studied. From thermodynamical arguments, we deduce that floppy modes are not at zero frequency and thus a modified Debye model is used to take into account this effect. The model predicts a deviation from the Debye law at low temperatures. T…