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We have fabricated high strength and conductivity Cu-Nb micro-composites by bundling and drawing process. We study the thermal stability of Cu-18vol. %Nb composites for high pulsed magnet use. The evolution of the Nb filaments in the composites during heat treatments is observed by scanning electron microscopy. The mechanism of edge spheroidization and cylinderization phenomenon for Nb filaments is...
Copper ion exchange technique was used to fabricate soda-lime glass planar waveguides. Prism coupling method was applied to measure the effective indices, and the refractive index profiles were reconstructed through Inverse WKB (IWKB) method. Optical absorption and photoluminescence analysis were carried out as well. The emission spectra centered at 520nm are attributed to Cu+ located in distorted...
Copper ion exchange technique was used to fabricate soda-lime glass planar waveguides. The refractive indices profile was constructed through Inverse WKB method. Optical absorption and photoluminescence analysis were performed as well. Ion exchange time and temperature were both found to play an important role in waveguides photoluminescence properties.
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