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Restoration of lost bones and their function is a major issue for bone tissue engineering. Although numerous synthetic biomaterials have been developed to overcome the problems associated with autologous or allogeneic therapeutic bone grafts, there remains a great challenge to design an idea bone substitute. Furthermore, electrospinning is an effective method of producing nano-fibrous structure. In...
We theoretically study the band structures of Lamb waves in one-dimensional phononic crystal plates consisting of piezoelectric ceramics placed periodically in epoxy with epoxy or piezoelectric ceramic substrate by the virtual plane wave expansion method. The dependences of the widths and starting frequencies of first band gaps (FBG) on the substrate's thickness, the filling fraction, and the lattice...
This paper deals with computation of the dielectric constant of BaTiO3 composites according to two computation models. The results showed that the dielectric constant epsiv of materials increases with volume of BaTiO3, which is as same as that reported. At same time, the mediate phase was proved to exist between BaTiO3 and polymer. It indicates that the mediate phase computation model is rational.
Due to the massive applications of multilayered composite materials (for example carbon fiber material, glass fiber material etc.) in material industry, aviation industry, medical enterprise and other consumer industries, it becomes an important work to carry on the non-destructive evaluation to the long-term characteristic and the security of the composite materials in use. The reliability of a composite...
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