Structure and morphology of sol-gel prepared polymer-ceramic composite thin films

Embs, F. W.; Thomas, Edwin L.; Wung, Chichang J.; Prasad, Paras N.

doi:10.1016/0032-3861(93)90691-3

Cited by 18 publications

(10 citation statements)

References 22 publications

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“…The elastomeric mold was made from poly(dimethylsiloxane), (PDMS, Sylgard 184, Dow Corning, Silicone Elastomer) as described previously [12,13]. The filled thin ( < 2 mm thick) PDMS mold was brought carefully into contact with the substrate to prevent air bubbles from being trapped between the mold and the substrate.…”

Section: Methodsmentioning

confidence: 99%

Fabrication of three‐dimensional micro‐structures: Microtransfer molding

1996

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ExperimentalThe monomers lla and Ilb, and the precursor polymers la and Ib, were for their assistance in using these facilities. X.-M.Z. thanks Dr. Christian Marzolin for providing the spin-on glass used in the experiments. The authors thank Prof. M. Prentiss and Ben Brown for helping them to test the polymeric waveguides. Adv. Mnter. 1996,8, No. 10 0 VCH Verlagsgesellschaft mbH, 0-69469 Weinheim, I996 0935-9648/96/

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Section: Methodsmentioning

confidence: 99%

Fabrication of three‐dimensional micro‐structures: Microtransfer molding

1996

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“…(3) Interfaces, Membranes, Thin Films, Coatings, and Composites The sensitivity of SAS methods to the scattering from internal surfaces and interfaces has resulted in their application to quantify microstructures with high interface densities such as found in nanocomposites or within precipitate morphologies. [1][2][3][12][13][14][15][16][17][18][19][20][21][22][23][24][25]34, This is of particular importance when the physical or chemical properties are determined by such interfaces. Membranes, films, and coatings also fall into this category and have been the subject of several SAS investigations using conventional SANS and SAXS, USAXS and MSANS methods.…”

Section: Examples Of Applicationmentioning

confidence: 99%

Characterization of Ceramics by X‐Ray and Neutron Small‐Angle Scattering

Allen

2005

Journal of the American Ceramic Society

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This paper reviews some recent advances in small‐angle X‐ray and neutron scattering methods and their application to address complex issues in ceramic systems of technological importance. It is shown how small‐angle scattering (SAS) can be applied to ceramic systems in order to extract statistically representative microstructure information (e.g., void volume fraction size distributions, internal surface areas, pore morphologies) that complements the information obtained from diffraction methods, X‐ray microtomography, or electron microscopy. It is demonstrated how SAS studies provide insights, not obtainable by other means, on the processing–microstructure–property relationships that frequently govern technological performance.

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“…10 As a rule, the extent of property enhancement depends on factors such as nanoparticle size, size distribution, aspect ratio, degree of dispersion and orientation in the matrix, and the adhesion at the filler-matrix interface. [11][12][13][14][15] Extensive work has been done in polymer-clay nanocomposites and its application made commercial success in nylon 6. 16 -18 This can pave the way to develop various nanoparticle-filled polymer composites such as metal oxides, mineral powders, and carbon.…”

Section: Introductionmentioning

confidence: 99%

Effects of zinc oxide nanoparticles on the physical properties of polyacrylonitrile

Chae¹,

Kim²

2005

J of Applied Polymer Sci

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Polyacrylonitrile (PAN)/zinc oxide (ZnO) nanocomposites were prepared by solution mixing in dimethylacetamide, followed by film casting, and their physical properties were investigated. The heating scan of differential scanning calorimetry displayed only a single crystallization peak (T c ) without a melting peak, regardless of the presence of ZnO. The incorporation of ZnO nanoparticles decreased T c by 13°C, and increased the heat of crystallization by 18%. Further, it greatly improved the thermal stability of PAN, even at the ZnO content as low as 0.1 wt %. The nanocomposites showed the UV transmittance peak at 365 nm, whose intensity was increased as ZnO content was increased. The presence of ZnO did not produce new peak nor shift the peaks with respect to PAN in wide angle X-ray diffraction pattern. Introduction of a small amount of ZnO nanoparticles did not have notable effect on the tensile properties. However, 5 wt % loading of the nanoparticles increased the tensile modulus of PAN by 14.5% and decreased elongation at break dramatically. PAN nanocomposites with 5 wt % ZnO did not show any plateau region in stress-strain curve.

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Structure and morphology of sol-gel prepared polymer-ceramic composite thin films

Cited by 18 publications

References 22 publications

Fabrication of three‐dimensional micro‐structures: Microtransfer molding

Fabrication of three‐dimensional micro‐structures: Microtransfer molding

Characterization of Ceramics by X‐Ray and Neutron Small‐Angle Scattering

Effects of zinc oxide nanoparticles on the physical properties of polyacrylonitrile

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