An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
Electromagnetic pulse welding technology shows a wide range of applications in welding dissimilar metals. In this work, the effect of the angle between the magnesium sheet rolling route and welding direction on the magnesium–aluminum joint has been studied. An electromagnetic pulse welding equipment WD-28 was used to weld the magnesium sheet and aluminum sheet. The angle was set to 0º, 45º, and 90º, and the discharge energy was set from 10.08 kJ to 17.92 kJ. The mechanical property of the magnesium–aluminum joints was compared. Scanning electron microscope and energy dispersive spectrometer were used to observe the microscopic morphology and element distribution of the bonding interface. Results show that the tensile strength of the joint is the highest when the angle is 0º under the same conditions. The tensile strength of the magnesium sheet, the movement of the collision point, and the metal jet during the electromagnetic pulse welding process were affected by the angle, causing the difference in the thickness of the diffusion layer, the morphology of the wavy interface, and the length of the welded zone. Moreover, the quality of the joints with different angles can be improved by increasing discharge energy.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
Abstract The phenomenon of thin surface layer growth during the regeneration of incomplete crystallographic potassium dihydrogen phosphate crystal has not been thoroughly elucidated to date. In the present study, four sets of incomplete crystallographic KH 2 PO 4 crystals enclosed by singular faces are designed to observe their regeneration characteristics in supersaturated solution. In all the crystals, even though every crystal face is singular surface, thin surface layers still grow from crystal edges or concave angles to repair themselves to convex polyhedrons. Through surface energy calculation, it is found that the thin surface layer growth encounters higher growth barrier than ordinary layer‐by‐layer growth. Here, an assumption is proposed that the incomplete crystal possesses a “potential of morphology repair”, which drives the thin surface layers growing to repair itself into complete form. This assumption is confirmed to some extent by a thin surface layer fragments experiment. The experiment implies that thin surface layer is the same as the ordinary crystal seed once separated from incomplete crystal, and its growth rate is one order slower than in incomplete crystal.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
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