Advanced Materials

Cover image for Advanced Materials

November 1990

Volume 2, Issue 11

Pages fmi–fmi, 518–560

  1. Masthead

    1. Top of page
    2. Masthead
    3. Essay
    4. Reviews
    5. Communications
    6. Research News
    7. Conference Reports
    1. Masthead (page fmi)

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021101

  2. Essay

    1. Top of page
    2. Masthead
    3. Essay
    4. Reviews
    5. Communications
    6. Research News
    7. Conference Reports
    1. Concerted European action on magnets (pages 518–520)

      Prof. Robert W. Cahn

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021102

      Support from brussels has enabled concerted action in the research and development of magnetic materials as part of the CEAM programme (see logo). The history of this international cooperation, its successes, and future directions are assessed.

  3. Reviews

    1. Top of page
    2. Masthead
    3. Essay
    4. Reviews
    5. Communications
    6. Research News
    7. Conference Reports
    1. Ion Beam Modified Polyimide (pages 521–527)

      Dr. Joël Davenas and Dr. Gisèle Boiteux

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021103

      Photon-, plasma-, and ion-beam processing offer opportunities to induce new properties (e.g. insulating or conducting) in organic precursors. Plasma treatments have led to the remarkable development of diamond-like film synthesis, and ion-beam-modified polyimidies, with their enhanced conductivity and adhesive properties, show promise for applications in integrated circuits.

    2. Carbon Fibers (pages 528–536)

      Prof. Wilhelm Ruland

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021104

      High stiffness and strength combiend with low weight are the advantages offered by carbon fibers in the manufacture of reinforced composites. Effective use of these materials depends on an understanding of structure–property relationships One method of help in this work in small angle X-ray scattering (SAXS), where the intensity distributions (see figure) can be used to determine orientation, shape, size and volume fraction of structural features resulting from different processing temperatures.

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  4. Communications

    1. Top of page
    2. Masthead
    3. Essay
    4. Reviews
    5. Communications
    6. Research News
    7. Conference Reports
    1. Pleochroism of evaporated metal islands on langmuir–blodgett films (pages 537–539)

      Dr. Christoph Bubeck

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021105

      The structures of molecular monolayers and films can be elucidated by studying the unique linear and nonlinear optical properties of small metal islands deposited on the films. The islands can lead to surface-enhanced electromagnetic effects as their size and separation are much smaller than the wavelength of light, and these effects have been studied using spectrophotometry and optical microscopy.

    2. Ferroelectric liquid crystalline polysiloxanes with high spontaneous polarization and possible applications in nonlinear optics (pages 539–543)

      Heinrich Kapitza, Dr. Rudolf Zentel, Dr. Robert J. Twieg, Cattien Nguyen, Sven Uwe Vallerien, Dr. Friedrich Kremer and Dr. C. Grant Willson

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021106

      Ferroelectric liquid crystalline (LC) polymers (see figure), which in the smectic C* phase exhibit the highest yet known spontaneous polarization for LC polymers of up to 430 nC/cm2, a value which approaches that of the best low molecular weight materials, have been synthesized, based on chiral polysiloxanes. A copolymer is also reported which shows promise for second harmonic generation (frequency doubling) of the 1064 nm Nd:YAG fundamental (to 532 nm) without poling in an external field.

    3. Hydrothermal modification of crystalline imperfections in a platinum sol (pages 543–545)

      Dr. Daniel G. Duff, Dr. Peter P. Edwards, Dr. Angus I. Kirkland and Dr. David A. Jefferson

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021107

      Small metallic particles in colloidal solutions can be used for the production of effective room-temperature catalysts. Here, a method commonlyused in the structural modification of ceramic suspensions is applied to platinum particles and found to significantly improve the crystalline perfection of the colloid, as demonstrated by high-resolution electron microscopy.

    4. Polymer-salt intercalation complexes in layer silicates (pages 545–547)

      Prof. Eduardo Ruiz-Hitzky and Pilar Aranda

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021108

      Composite ionic conductors based on homoionic montmorillonites (2:1 charged layers silicates containing metal ions in their interlayer space) cinteracted with poly(ethylene oxide) exhibit enhanced condcutivity between silicate layers (see figure). The presence of tunnels in the intercalated polymer–salt complex is thought to facilitate intracrystalline ion mobility.

  5. Research News

    1. Top of page
    2. Masthead
    3. Essay
    4. Reviews
    5. Communications
    6. Research News
    7. Conference Reports
    1. Biomaterials highlights VII. Implants in ear nose and throat (ENT) surgery (pages 548–549)

      Prof. Ganther Heimke

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021109

      In this often-delicate area of implantology the materials requirements can vary from one end of an implant to the other. Impalnts, for example, in the inner and outer ear, require different tissue-to-implant interactions. The materials used and the surgical techniques employed are reviewed.

    2. Magnetic force microscopy (pages 550–552)

      Dr. Uwe Hartmann

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021110

      Sensitive mapping of near-surface microfields produced by ferromagnetic media is possible with a spacial resolution under 100 nm using magnetic force microscopy (MFM), a technique related to atomic force microscopy. The method is described and the development of a novel type of MFM microprobe tip (see figure) is also reported.

    3. Inorganic materials IV. Transparent ceramics and glass-ceramics (pages 553–556)

      Graham Partridge

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021111

      Ceramic hotplates in the kitchen through which the heating rings canonlybe seen when they are hot, and covers for tungsten-halogen lamps are two applications of ceramic-based materials which transmit light in the visible and near infrared regions of the spectrum.

  6. Conference Reports

    1. Top of page
    2. Masthead
    3. Essay
    4. Reviews
    5. Communications
    6. Research News
    7. Conference Reports
    1. Polymers and light in bad nauheim (page 557)

      Prof. Dietrich Haarer

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021112

      Dietrich Haarer reports on the “Polymers and Ligh” meeting in Germany and Herbert Jaeger reviews his visit to a “Thin Film Superconductors” conference held recently in Colorado.

    2. Thin film superconductors in denver (pages 558–559)

      Dr. Herbert Jaeger

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021113

    3. Materials Forum (page 560)

      Article first published online: 15 SEP 2004 | DOI: 10.1002/adma.19900021114

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