In this work, Fe3O4@nano-walnut shell/BIII (FNWSB), as a reusable and new catalyst was prepared then characterized by FT-IR, XRD, FESEM, EDS-MAP, TGA. This used for synthesis of tetrahydrobenzo[a]xanthen-11-ones via three-component, one-pot condensation reaction dimedone, β-naphthol, aromatic aldehydes. An uncomplicated work-up, high yields product, short times, use low-cost are considerable ad...

The relationship between processing parameters, microstructure, and mechanical properties of Al-8.3Fe-1.3V-1.8Si alloy processed by laser powder bed fusion is seldom studied. Therefore, fully dense alloys with two parameters were selected to investigate this key issue. results show that the low power scanning speed (S200) shows fan-shell-shaped melt pools tracks while another (S350) a deeper wi...

The kinetics of and mechanism for galvanising low-carbon steel (0.2% C) were examined in powder media which pre-treated to obtain a fine nanostructured ZnO layer on the surface zinc particles. effective diffusion coefficient Zn atoms through shell was estimated be order 1·10-10 m2·s-1. contribution Zn-gas evaporation/condensation microprocesses, could occur relation above layer, evaluated with ...

Hybrid latex particles combine the unique properties of inorganic nano/micro with inherent polymers, exhibiting tremendous potential for a variety applications. Recent years have witnessed an increased interest in design and preparation hybrid well-defined size, structure morphology. Due to its simplicity, versatility environmental friendliness, situ (Pickering) emulsion polymerization has been...