Results 281 to 290 of about 4,434,824 (337)

GeO 2 fibers: Preparation, morphology and photoluminescence property

The Journal of Chemical Physics, 2004
Nanomicron to submicron fibers of GeO2 have been prepared using poly(vinyl acetate) and germanium dioxide sol by electrospinning followed by high temperature calcination. The morphology of the fibers have been studied by scanning electron microscopy, transmission electron microscopy, and atomic force microscopy.
P, Viswanathamurthi, N, Bhattarai, H Y, Kim, M S, Khil, D R, Lee, E-K, Suh   +5 more
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Morphology of gel‐spun polyethylene fibers

Journal of Applied Polymer Science, 1995
AbstractNitric acid etching studies have been conducted on samples of commercially available highly oriented gel‐spun polyethylene fibers: SpectraTM 900 and 1000 from AlliedSignal Inc. The results show that the acid attacks the fiber, increases crystallinity as observed by X‐ray diffraction, increases the enthalpy of melting of unconstrained fibers by ...
Nasrin Khosravi, S. B. Warner, N. S. Murthy, Satish Kumar   +3 more
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Morphology of (KC60)n polymeric fibers

Synthetic Metals, 1996
Abstract The fibers produced by co-evaporation of C 60 and potassium, and subsequent treatment in toluene, have been investigated by electron microscopy and optical spectroscopy. The electron diffraction pattern can be indexed in terms of the known orthorhombic (KC 60 ) n structure.
M. Carrard, L. Forro, L. Mihaly, S. Pekker   +3 more
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Morphological foundations of fiber properties

Journal of Polymer Science Part C: Polymer Symposia, 1965
AbstractStructural theories which have been developed to interpret the chemical, physical, and mechanical properties of fibers are reviewed, with particular emphasis on the natural fibers. It is pointed out that many of the current theories of fiber structure derive from early concepts of the natural cellulosic or vegetable fibers.
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The morphology of electrospun polystyrene fibers

Korean Journal of Chemical Engineering, 2005
Electrospinning is a process of electrostatic fiber formation which uses electrical forces to produce polymer nanofibers from polymer solution. The electrospinning system consists of a syringe feeder system, a collector system, and a high power supplier.
Gil-Tae Kim, Yu-Jin Hwang, Young-Chull Ahn, Hee-Soo Shin, Jae-Keun Lee, Chang-Mo Sung   +5 more
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Quantifying Changes in Fibrin Fiber Network Morphology

Ultrastructural Pathology, 2011
During blood clotting, thrombin and fibrinogen interact, whereby thrombin cleaves the fibrinogen molecule into two peptides, the fibrinopeptides, ultimately forming fibrin monomers. These fibrinogen monomers assemble to form a fibrin network that may be studied using ultrastructural techniques.
openaire   +2 more sources

Protuberant Morphology of Electrospun Polymeric Fibers

Key Engineering Materials, 2006
A highly concentrated solution of polystyrene (PS) in N,N-dimethyl formamide (DMF) was electrospun and the surface morphology of the electrospun PS fibers was investigated. Unlike the porous morphology observed on the surface of the fibers electrospun from the PS solution in a volatile solvent, e.g.
Min Sung Kang, Won Il Park, Rira Jung, Hyoung Joon Jin   +3 more
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The morphological stability of polycrystalline fibers

Acta Metallurgica, 1989
Abstract Zirconium acetate (yttrium nitrate) precursor fibers, produced by dry spinning, were placed upon a single crystal Al2O3 substrate. Upon heat treatment, the precursor fibers pryrolyzed and densified, producing polycrystalline ZrO2 (8 mol% Y2O3) fibers which were sintered to the substrate. Further heat treatment to induce grain growth produced
K.T. Miller, F.F. Lange
openaire   +1 more source

Fiber-Based Mini Tissue with Morphology-Controllable GelMA Microfibers.

Small, 2018
The use of microscale fibers could facilitate nutrient diffusion in fiber-based tissue engineering and improve cell survival. However, in order to build a functional mini tissue such as muscle fibers, nerve conduits, and blood vessels, hydrogel ...
Lei Shao, Qing Gao, Haiming Zhao, Chaoqi Xie, Jianzhong Fu, Zhenjie Liu, Meixiang Xiang, Yong He   +7 more
semanticscholar   +1 more source

Evolution of fiber morphology during electrospinning

Journal of Applied Polymer Science, 2010
AbstractIn this study, the morphological evolution of poly(acrylonitrile) (PAN) nanofibers during electrospinning was examined via immersion precipitation of newly electrospun filaments in ethanol, and subsequently associating the fiber morphologies with the electrospinning distances (2 to 10 cm).
Jian Fang, Hongxia Wang, Haitao Niu, Tong Lin, Xungai Wang   +4 more
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