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A series of Sc:Ce:Cu:LiNbO3 crystals were prepared using the Czochralski method and the occupation mechanism of the dopants is discussed in terms of the results of infrared and UV–visible spectra. The optical damage resistance ability and quasi‐nonvolatile holographic properties of the samples were also obtained. The defect structure is discussed, accounting for the optical damage resistance and two‐photon holographic response speed. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

We presented the solution of deformation-induced precipitation after homogenization to enhance the mechanical properties of Mg-6Zn alloys. The results show that the improved strategy exhibits more effective strengthening role than grain refinement methods based on low-temperature severe plastic deformation under the same strain. The low-temperature deformation with larger extrusion ratio results in massive nano-sized precipitates and excellent mechanical properties with the yield strength of 355 MPa and the ultimate tensile strength of 405 MPa. The increased mechanical properties are strong and tough enough to resist the stress and not be worn away when the alloy nail penetrates through the pig thigh bone, potentially extending more orthopedic surgery applications for Mg-Zn alloys.

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With K 2 O as flux, near-stoichiometric In:LiNbO 3 (In:SLN) crystals with different indium contents were grown by the top seed solution growth (TSSG) method. Defect structure characteristics and the replacement principle of extrinsic ions were derived from X-ray powder diffraction, differential thermal analysis (DTA), ultraviolet-visible (UV) absorption and infrared (IR) spectrum measurement. Further analysis indicated that the threshold concentration of In 2 O 3 in near-stoichiometric LiNbO 3 crystals were about 1.1 mol%.