No abstract

No abstract

No abstract

No abstract

No abstract

In this study, Zn‐xMg‐0.5Zr alloys (x = 0.5, 1, 1.5 wt%) were designed to improve the mechanical properties and biodegradability of pure Zn for potential biomedical implantation materials. The microstructure, mechanical properties, in vitro corrosion behavior, and in vivo biocompatibility of the as‐extruded alloys were investigated. The Zn–Mg–Zr alloys exhibit a significant grain refinement and improved tensile strength, corrosion resistance, and cytotoxicity by comparison with pure Zn. With the increasing Mg content, the tensile strength and corrosion rate of Zn–Mg–Zr alloys increase whereas the elongation increases and then decreases and the cytocompatibility decreases. Due to the combination of hot extrusion and micro‐alloying of Mg and Zr, the Zn–1Mg–0.5Zr alloy has homogenous microstructure, uniform and slow biodegradation, improved mechanical properties and good biocompatibility, is a suitable candidate material for load‐bearing biodegradable implant application.

An improved magnetic field detection unit based on length-magnetized Terfenol-D and width-polarized ternaryMagnetoelectric ͑ME͒ characteristics in a simple Pb͑Zr, Ti͒O 3 /Terfenol-D laminate composite are investigated. Both magnetomechanical and electromechanical resonances ͑EMRs͒ can enhance ME coupling and the latter plays a more important role. The phase spectra show a significant phase shift of 0.75 -around each EMR frequency and a clear phase bouncing around each magnetomechanical resonance frequency. The distributions of the electric-field-induced magnetization ͑EIM͒ express different manners in longitudinal and transverse directions, which are attributed to the magnetized directions and the resonant modes. When the driving electric field frequency is near one of the integer EMR frequencies, multiple resonance EIMs are observed.

No abstract