Thermodynamic, structural and magnetic studies of phase transformations in MnAl nanocomposite alloys

AD Crisan, F Vasiliu, R Nicula, C Bartha… - Materials …, 2018 - Elsevier
We have undertaken a temperature-dependent, investigation of the thermodynamics,
structure, morphology and magnetism of two MnAl nanocomposite alloys (Mn 60 Al 40 and …

The influence of microstructure on magnetic properties of nanocrystalline Fe–Pt–Nb–B permanent magnet ribbons

N Randrianantoandro, AD Crisan, O Crisan… - Journal of Applied …, 2010 - pubs.aip.org
A FePt-based hard-magnetic nanocomposite of exchange spring type was prepared by
isothermal annealing of melt-spun Fe 52 Pt 28 Nb 2 B 18 (atomic percent) ribbons. The …

Tuning exchange spring effects in FePt/Fe (Co) magnetic bilayers

VR Reddy, O Crisan, A Gupta, A Banerjee, V Kuncser - Thin Solid Films, 2012 - Elsevier
Structural and magnetic properties of exchange spring magnets consisting of hard magnetic
(FePt) and soft magnetic (Fe and Co) bilayers, prepared by ion beam sputtering method are …

[HTML][HTML] Magnetic phase coexistence and hard–soft exchange coupling in FePt nanocomposite magnets

O Crisan, I Dan, P Palade, AD Crisan, A Leca… - Nanomaterials, 2020 - mdpi.com
With the aim of demonstrating phase coexistence of two magnetic phases in an intermediate
annealing regime and obtaining highly coercive FePt nanocomposite magnets, two alloys of …

[HTML][HTML] Morpho-Structural Investigations and Carbon Nanoclustering Effects in Cr-Al-C Intermetallic Alloys

AD Crisan, O Crisan - Nanomaterials, 2022 - mdpi.com
Intermetallic Cr-Al-C thin films from the 211 class of MAX phases were fabricated via ion
beam deposition and structural investigations were undertaken to obtain information about …

Direct formation of L10 FePt in as-cast FePt-based magnetic nanocomposite ribbons without post-synthesis annealing

AD Crisan, O Crisan - Journal of Physics D: Applied Physics, 2011 - iopscience.iop.org
A novel nanocomposite FePt-based exchange-coupled magnet has been synthesized and
structurally and magnetically characterized. We report for the first time the direct formation of …

Effects of annealing temperature on the structure and magnetic properties of the L10-FePt nanoparticles synthesized by the modified sol–gel method

Y Liu, Y Jiang, X Zhang, Y Wang, Y Zhang, H Liu… - Powder technology, 2013 - Elsevier
The ordered face-centered tetragonal (FCT) FePt nanoparticles (NPs) were successfully
synthesized by the modified sol–gel method. The relationship between the annealing …

Incipient low-temperature formation of MAX phase in Cr–Al–C films

O Crisan, AD Crisan - Journal of Advanced Ceramics, 2018 - Springer
Ceramic-metallic MAX phase of chromium aluminium carbide ternary compounds was
successfully obtained through deposition by DC sputtering onto Si substrates. A study of the …

[HTML][HTML] Temperature-dependent phase evolution in FePt-Based nanocomposite multiple-phased magnetic alloys

O Crisan, AD Crisan, N Randrianantoandro - Nanomaterials, 2022 - mdpi.com
A quaternary Fe–Pt–Nb–B alloy has been fabricated by the melt spinning method with the
purpose of the formation of crystallographically coherent multiple magnetic phases …

[HTML][HTML] Role of Disordered Precursor in L10 Phase Formation in FePt-Based Nanocomposite Magnet

AD Crisan, I Dan, O Crisan - Magnetochemistry, 2021 - mdpi.com
In order to prove the usefulness of having a structurally disordered precursor to the formation
of FePt L10 phase and to facilitate the co-existence of exchange coupled hard and soft …