Mechanical behaviour of Al2O3-ZrO2 minicomposite reinforced glass matrix optomechanical composite

To understand the effect of a 'mesh-structured reinforcement' on the optical and mechanical properties of optomechanical composites, a unidirectional Al2O3 fibre-ZrO2 matrix minicomposite reinforced glass matrix optomechanical composite has been fabricated. By regular alignment of the minicomposites in the glass matrix as part of the 'mesh structure' a high degree of optical transparency is obtained in the composite; this transparency is proportional to its 'optical window' regions. The mesh structured reinforcement composed of millimetre order widely spaced minicomposites is effective in improving the fracture resistance of the resulting composites primarily through an intact minicomposite bridging mechanism. Use of the minicomposite type of reinforcement is one possible means of improving the mechanical properties of brittle matrix optomechanical composites.


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Minicomposite unit bridging, which was experimentally determined to be the dominant toughening mechanism resulting in the R-curve behavior of the Al2O3-ZrO2 minicomposite-reinforced glass matrix optomechanical composite, was studied quantitatively using luminescence spectroscopy. Applied stress induced shift of the luminescence bands of the minicomposite reinforcement was calibrated. Using the experimentally obtained calibration curve, axial stresses could be mapped along the minicomposite embedded in the g...
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The structure, the anisotropy effect on the current transport mechanism and the space charge limited current in Tl4Se3S chain crystals have been studied by means of X-ray diffraction, electrical conductivity measurements along and perpendicular to the crystal's c-axis and the current voltage characteristics. The temperature-dependent electrical conductivity analysis in the region of 150-400 K, revealed the domination of the thermionic emission of charge carriers over the chain boundaries above 210 and 270 K...
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Citation Formats
A. F. Dericioğlu, “Mechanical behaviour of Al2O3-ZrO2 minicomposite reinforced glass matrix optomechanical composite,” MATERIALS SCIENCE AND TECHNOLOGY, pp. 1119–1124, 2003, Accessed: 00, 2020. [Online]. Available: