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Purpose: The aim of this work was to verify the usefulness of high-energy milling, using electromagnetic mill, as a method for obtaining tetragonal (red) form of PbO, alternative to standard methods. Design/methodology/approach: Experiments were held to compare samples of the yellow form of PbO after milling in electromagnetic mill with the ones milled in high-energy planetary ball mill as a function...
Purpose: The aim of this work was to investigate an efficiency of high-energy milling, as a method to obtain hydrogen storage alloys with good properties. Design/methodology/approach: Two classes of the alloys were studied: AB2type with atomic composition of (Ti0.5Zr0.5)(V0.68Mn0.68Cr0.34Ni0.7) and AB5type with atomic composition of (Ce0.63La0.37)(Ni3.55Al0.3Mn0.4Co0.75).The materials were prepared...
Purpose: The aim of this work was to determine an effect of X-ray irradiation on activation of silver reduction from water solutions of its salts, resulting in fabrication of nanocrystalline product. Design/methodology/approach: The process and products of the reduction of silver nitrate water solutions, containing the additions of other compounds or not, including particle growth inhibitors, irradiated...
Purpose: Basic material concept, technology and some results of studies on aluminum matrix composite with dispersive aluminum nitride reinforcement was shown. Studied composites were manufactured with use f ex-situ technique and powder metallurgy. Design/methodology/approach: Aluminum nitride powder was manufactured in process of self-evolving high-temperature synthesis SHS. Composite powder Al-AlN...
Purpose: The aim of this work was to define the stress state in the strips from copper-based alloys with an account of the parameters of rolling and flattening. Design/methodology/approach: Samples of thin strips from three commercial copper-based alloys, i.e. CuSn6, CuZn33 and CuNi18Zn27, and from copper 99.98% in purity, were examined. The stress analysis was performed using X-ray diffraction method...
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