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Theoretical approach to the ductile fracture of polycrystalline solids
Miguel Lagos, César Retamal, Rodrigo Valle
It is shown here that fracture after a brief plastic strain, typically of a few percents, is a necessary consequence of the polycrystalline nature of the materials. The polycrystal…
High Precision Energy Measurements from the Analysis of Wide Spectral Features. Application to the fluorescence of YAG:Ce3+
Miguel Lagos, Rodrigo Paredes, César Retamal
Advantage is taken of a complete and precise experimental study of the luminescent properties of yttrium aluminium garnet doped with Ce, previously accomplished by other authors, t…
An alternate theoretical approach to diffusion bonding
Miguel Lagos, César Retamal
On the basis of a previous theoretical approach to the plastic flow of highly refined materials, a physical explanation for diffusion bonding is essayed, which yields closed--form…
Theory of finite strain superplasticity
Miguel Lagos, César Retamal
The plastic flow of a polycrystal is analyzed assuming grains as fine that the rate limiting process is grain boundary sliding, and grains readily accommodate their shapes by slip…