B2 Ordering
B2 Ordering - Related Videos
12:20
Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
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Cited by 23 •
2013
A method to prepare epitaxial layers of ordered alloys by sputtering is described. The B2-ordered FeRh compound is used as an example, as it displays a metamagnetic transition that depends sensitively on the degree of chemical order and the exact composition of the alloy.
08:30
Dissection and Culture of Mouse Embryonic Kidney
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Cited by 4 •
2017
This protocol describes a method for isolating and culturing metanephric rudiments from mouse embryos.
05:14
An Assay to Evaluate Drug Efficacy against a Mycobacterium tuberculosis Infection Model
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2025
This video demonstrates an assay to evaluate the efficacy of drugs against Mycobacterium tuberculosis (Mtb) infection. An in vitro infection model containing Mtb/macrophage aggregates is generated that mimics in vivo infection. Upon introducing suitable antibiotics, their efficacy is tested via resuzarin assay to monitor the survival of bacteria with increasing drug concentrations.
05:13
Isolation of Proteins from Viral DNA-protein Complexes
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2026
Source: Dembowski, J. A., et al. Purification of Viral DNA for the Identification of Associated Viral and Cellular Proteins. J. Vis. Exp. (2017).This video demonstrates the isolation of protein–viral DNA complexes from cell nuclei using click chemistry and magnetic bead purification. The protocol involves labeling viral genomes with alkyne-modified nucleotides, biotinylation via a click reaction, and binding to streptavidin-coated magnetic beads. Following washing and heat elution, the purified...
03:42
In Vitro Evaluation of Bacterial Killing by Neonatal Mouse Splenic Phagocytes
0 Views •
2026
Source: Seman, B. G., et.al. Neonatal Imaging Model of Gram-Negative Bacterial Sepsis. J. Vis. Exp. (2020)This video demonstrates the isolation of neutrophils and inflammatory monocytes from neonatal mouse spleens and their application in a luminescent bacterial killing assay. It covers mechanical dissociation, red blood cell lysis, magnetic bead–based cell enrichment, bacterial incubation, and antibiotic protection. Timed luminescence readings indicate initial bacterial internalization...
FAQs
B2 ordering develops when the alloy’s chemical interactions favor unlike atoms occupying neighboring lattice sites. This preference stabilizes the arrangement of the two atomic species on separate sublattices rather than allowing random site occupancy. The resulting atomic pattern matters because it establishes the structural basis for changes in phase stability and other engineering properties.
Higher temperature can weaken long-range B2 order by making a disordered atomic arrangement more favorable. Thermal conditions influence whether atoms remain on their energetically preferred lattice sites, so the degree of order depends on the balance between chemical site preference and thermal effects. This temperature sensitivity is important when evaluating alloy behavior under elevated-temperature service.
The ordered and disordered states differ in how consistently the two elements occupy their preferred lattice sites. In the ordered state, site preference extends over long ranges; in the disordered state, that preference is reduced. This structural change can alter phase stability, strength, ductility, diffusion, and oxidation behavior, making order an important variable in alloy performance.
Characterizing B2 ordering helps determine whether an alloy has developed the intended atomic arrangement and how its structural state relates to performance. Such information supports evaluation of phase stability and provides context for changes in strength, ductility, diffusion, and oxidation behavior. It therefore helps researchers connect atomic organization with the engineering behavior of the material.
In intermetallic compounds and alloys such as NiAl and FeAl, B2 ordering is relevant because their atomic arrangement can influence several properties used to assess engineering performance. These include strength, ductility, diffusion, oxidation behavior, and phase stability. Studying the ordering state helps researchers understand and control how these materials respond in demanding engineering environments.
Engineers consider B2 ordering when designing alloys that require controlled structural and high-temperature performance. By relating atomic order and thermal conditions to phase stability, strength, ductility, diffusion, and oxidation behavior, researchers can evaluate which structural state best supports a material’s intended function. Characterization is consequently a design tool, not only a way to identify crystal structure.