Abstract: A luminescent cold spray coating and precursor feed powder comprising of a metallic matrix, non-metallic composite particles dispersed within the metallic matrix at about 0-60% by volume, and, luminescent material disposed within the matrix. A method for preparing luminescent metal coating, the method comprising the steps of accelerating metal powder, a luminescent material, and a carrier gas through a convergent-divergent Laval nozzle at a speed in the range of about 300 to 1200 m/s onto a work product.

Abstract: A fiber optic mechanical splice for splicing input and output optical fiber. The splice includes a capillary tube for enclosing fiber ends of the input and output optical fiber cables, two metallic cable-splice bridging flanges for insertion onto the input and output optical fiber cable jackets, a first metallic crimping tube, a second metallic crimping tube, a first protection tube, a second protection tube, and polyurethane tape. The fibers extending from the input and output optical fibers can be frustoconically inserted into a corresponding bridging flange. The crimping tubes enclose corresponding cable ends and bridging flanges. The first protection tube encloses the crimping tubes, while the second protection tube encloses the first protection tube and the tape is disposed over the second protection tube, the bridging flanges, and the crimping tubes.