Dimensional Changes produced in Iron and Steel Bars by Magnetism

Evaluation and improvement of the quality of Senegalese reinforcing steel bars produced from scrap metals

Superconductivity and magnetism in iron sulfides intercalated by metal hydroxides.

Inspired by naturally occurring sulfide minerals, we present a new family of iron-based superconductors. A metastable form of FeS known as the mineral mackinawite forms two-dimensional sheets that can be readily intercalated by various cationic guest species. Under hydrothermal conditions using alkali metal hydroxides, we prepare three different cation and metal hydroxide-intercalated FeS phase...

Magnetism in dense hexagonal iron.

The magnetic state of hexagonal close-packed iron has been the subject of debate for more than three decades. Although Mössbauer measurements find no evidence of the hyperfine splitting that can signal the presence of magnetic moments, density functional theory predicts an antiferromagnetic (afm) ground state. This discrepancy between theory and experiment is now particularly important because ...

Magnetism and charge dynamics in iron pnictides

Unconventional superconductivity occurs in close proximity to a magnetically ordered state in many materials1,2. Uncovering the character of the proximate magnetic phase is a crucial step towards understanding the mechanism of superconductivity. Unlike the case in the cuprate superconductors, the nature of the magnetism and its underlying electronic state in the iron pnictide superconductors3 i...

Surface Quality in Dry Machining of 55Cr3 Steel Bars

Lubricant and coolant can improve surface roughness in machining. In addition of ecological harms, thermal shock of coolant or lubricant may affect the surface integrity especially on surface residual stresses and micro-crack nucleation. Dry machining is ecologically desirable and it is considered as a necessity for manufacturing enterprises in the recent years. 55Cr3 steel grade is steel with ...