Amorphization and ultrafine-scale recrystallization in shear bands formed in shock-consolidated Pr₂Fe₁₄B/α -Fe nanocomposite magnets
Wang, Z. L. (Zhong Lin)
Jin, Z. Q.
Liu, J. Ping
Thadhani, Naresh N.
MetadataShow full item record
Amorphization and ultrafine-scale recrystallization within shear bands formed in shock-consolidated Pr₂Fe₁₄B/α -Fe nanocomposite magnetic powder compacts have been observed using transmission electron microscopy. The shear bands span through multiple grain lengths and truncate preexisting ~25 nm hard and soft magnetic phase grains, resulting in further grain size refinement. The shear bands contain nanocrystallites (<10 nm size) interdispersed in an amorphous matrix, which suggests the occurrence of shock-induced phase transition in localized regions of the shear bands, and provides insight into the process of deformation of nanocrystalline materials under coupled high-strain-rate and high-pressure conditions.
Showing items related by title, author, creator and subject.
Dyer, F. B. (Frederick Byron) (Georgia Institute of Technology, 1961-08)
Tunable Magnetic Properties of Spinel Ferrite Nanoparticles: Ferromagnetic Resonance and Physical Model of Magnetic Permeability Cao, Yi (Georgia Institute of Technology, 2021-12-07)Spinel ferrite nanoparticles have been widely applied in high frequency applications such as microwave absorption, signal filter, etc. The design of spinel ferrites with various properties has been a hot topic to satisfy ...
Development and analysis of radiolabeled magnetic nanoparticles for positron emission tomography and magnetic resonance imaging Glaus, Charles R. M. (Georgia Institute of Technology, 2008-11-03)Nanoparticles possess unique characteristics that make them well suited for molecular imaging. Particles can be synthesized in a systematic fashion with tight control over diameter and surface chemistry. Contrary to ...