Correlation between Magnetocaloric Properties and Magnetic Exchange Interaction in GdFeBSi Amorphous Alloys.

GdFeBSi ( = 0, 2, 5, 8, 10) amorphous ribbons were fabricated by melt-spinning technique. Based on the molecular field theory, the magnetic exchange interaction was analyzed by constructing the two-sublattice model and deriving the exchange constants , and . It was revealed that appropriate substitution content of Si for B can improve the thermal stability, maximum magnetic entropy change and widened table-like magnetocaloric effect of the alloys, while excessive Si will lead to the split of the crystallization exothermal peak, inflection-like magnetic transition and deterioration of magnetocaloric properties.

Phosphorus/Phosphide-Based Materials for Alkali Metal-Ion Batteries.

Phosphorus- and phosphide-based materials with remarkable physicochemical properties and low costs have attracted significant attention as the anodes of alkali metal (e.g., Li, Na, K, Mg, Ca)-ion batteries (AIBs).

Synergistic Optimization of Electrical-Thermal-Mechanical Properties of the In-Filled CoSb Material by Introducing BiSbTe Nanoparticles.

How to realize the synergistic optimization of electrical-thermal-mechanical properties of thermoelectric materials is a key challenge. Using the BiSbTe nanoparticle as a mixed agent provides an effective way to address this challenge. Here, BiSbTe/InCoSb nanocomposites with different contents of BiSbTe nanoparticles were successfully prepared by ultrasonic dispersion combined with spark plasma sintering.

Candidate for Magnetic Doping Agent and High-Temperature Thermoelectric Performance Enhancer: Hard Magnetic M-type BaFeO Nanometer Suspension.

How to prevent the agglomeration of nanoparticles in nanocomposites remains a key challenge. Using nanometer suspension as a doping agent provides an effective approach to solve this challenge. A new technique that consists of chemical coprecipitation, ball milling and sedimentation separation metheds was developed for preparing hard magnetic M-type BaFeO nanometer suspension.

Multilayered Si/Ni nanosprings and their magnetic properties.

A two-turn, eight-armed, rectangular Si/Ni heterogeneous nanospring structure on Si(100) has been fabricated using a multilayer glancing-angle deposition technique. The multilayered nanosprings with a height of approximately 1.98 mum were composed of alternating layers of amorphous Si nanorods approximately 580 nm in length and face-centered cubic Ni nanorods approximately 420 nm in length, both with a diameter of approximately 35 nm.