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An NbC-reinforced Fe-based composite coating was fabricated through laser cladding. NbC phases existed as particles, polyhedrons, dendrites, and networks in the coating. The liquid–solid interface engulfed the NbC particles in the early stages of solidification, thereby decreasing their sizes. Polyhedral NbC phases evolved from NbC particles that were not engulfed by the interface through a long growth...
Rutile TiO 2 whiskers with a length of 30μm and a diameter of 1.5μm were prepared via a facile sintering technique with H 2 Ti 4 O 9. 0.25H 2 O as a precursor under strong acidic condition. Scanning electron microscopy images showed that the whiskers have a uniform shape and a straight rod morphology with a square cross section. X-ray diffraction and transmission...
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