Nguyen Huy Dan
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View article: Elevating and controlling the martensitic-austenitic transformation temperature above room temperature for Ni-Co-Mn-Al ferromagnetic shape memory alloys
Elevating and controlling the martensitic-austenitic transformation temperature above room temperature for Ni-Co-Mn-Al ferromagnetic shape memory alloys Open
Rapidly quenched Ni 50−x Co x Mn 35 Al 15 (x = 7 − 13) alloy ribbons with thickness of ∼20 μm and width of ∼3 mm were prepared by melt-spinning method. All the ribbons are crystallized with columnar grains having diameter of 1–3 μm and ori…
View article: The Complex Dynamics Between Discrimination and Traumatic Experiences Among Refugees in the United States
The Complex Dynamics Between Discrimination and Traumatic Experiences Among Refugees in the United States Open
The National Comorbidity Survey suggest that majority of men and women among all U.S. adults aged 18 to 55 have experienced at least one traumatic event during their lives. However, a significant gap exists in comparable documentation rega…
View article: Synthesis and Characterization of Broccoli-like Ag/Cu2O Nanostructures on ZnO Nanowires Using the Plasma–Liquid Interaction Method
Synthesis and Characterization of Broccoli-like Ag/Cu2O Nanostructures on ZnO Nanowires Using the Plasma–Liquid Interaction Method Open
We have designed an excellent visible-light-driven and high-performance photocatalyst with a Ag-Cu2O-ZnO nanowire heterostructure in our work by combining the hydrothermal approach with plasma–liquid technology. The structural and morpholo…
View article: Influence of Co on Structure and Magnetic Properties of Ni<sub>50−x</sub>Co<sub>x</sub>Mn<sub>29</sub>Ga<sub>21</sub> Shape Memory Alloy Ribbons
Influence of Co on Structure and Magnetic Properties of Ni<sub>50−x</sub>Co<sub>x</sub>Mn<sub>29</sub>Ga<sub>21</sub> Shape Memory Alloy Ribbons Open
In this work, we investigated the influence of Co on the structure and magnetic properties of Ni50−xCoxMn29Ga21 (x = 0, 2, 4, 6, and 8) shape memory alloy ribbons fabricated by using the melt-spinning method. The addition of Co increases t…
View article: Structure and magnetic properties of melt-spun Mn-Ga-Cu-Al ribbons
Structure and magnetic properties of melt-spun Mn-Ga-Cu-Al ribbons Open
In this work, we investigated structure and magnetic properties of Mn 65 Ga 20 Al 15−x Cu x (x = 0, 5, 10 and 15) alloy ribbons prepared by melt-spinning method combined with annealing. The annealing temperature was varied from 250 °C to 3…
View article: Coercivity Enhancement of Sintered Nd–Fe–B Magnets by Intergranular Adding Micro-Structured Dy–Nd–Pr–Al–Cu Powder
Coercivity Enhancement of Sintered Nd–Fe–B Magnets by Intergranular Adding Micro-Structured Dy–Nd–Pr–Al–Cu Powder Open
In this work, microstructure and magnetic properties of sintered Nd16.5Fe77B6.5 magnets with intergranular addition of Dy30Nd17Pr3Al40Cu10 were investigated. The additional particles with size in the range of 1–2 µm were homogeneously mixe…
View article: Crystallization features of YBa2Cu3O7-δ single crystals in 2YBa4Cu3O9-δ + BaCu2O2 + CuO2 system
Crystallization features of YBa2Cu3O7-δ single crystals in 2YBa4Cu3O9-δ + BaCu2O2 + CuO2 system Open
In this article, a consistent study of phase transformations during the crystallization of YBa 2 Cu 3 O 7-δ compound was carried out using XRD, thermogravimetric and differential thermal analyzes, as well as optical microscopy. When studyi…
View article: Influence of Cu Concentration on Structure, Mechanical Properties and Corrosion Resistance of Ti–Ni–Cu Shape Memory Alloy Ribbons
Influence of Cu Concentration on Structure, Mechanical Properties and Corrosion Resistance of Ti–Ni–Cu Shape Memory Alloy Ribbons Open
The paper presents the results of investigating the influence of Cu concentration on structure, mechanical properties and corrosion resistance of Ti50Ni50−xCux (x = 0, 5, 10, 15 and 20) alloy ribbons. The ribbons with a thickness of about …
View article: NGHIÊN CỨU BIỂU HIỆN TỚI HẠN TRONG CÁC BĂNG HỢP KIM Fe88Co2Zr7B2Cu1
NGHIÊN CỨU BIỂU HIỆN TỚI HẠN TRONG CÁC BĂNG HỢP KIM Fe88Co2Zr7B2Cu1 Open
In this work, we investigated the critical behavior of Fe88Co2Zr7B2Cu1 alloy ribbons prepared using a single-roller melt-spinning method. X-ray diffraction analysis shows that the alloy is almost amorphous. This alloy undergoes a second-or…
View article: Influence of additional nanoparticles on coercivity of sintered Nd–Fe–B magnets
Influence of additional nanoparticles on coercivity of sintered Nd–Fe–B magnets Open
In this work, we investigated the influence of concentration of the additional nanoparticles of and on the coercivity of the sintered magnets. Composition and concentration of the additional compounds clearly influence magnetic properties …
View article: Investigation of fabrication of Mn-Ga-Al/Fe-Co nanocomposite hard magnetic materials
Investigation of fabrication of Mn-Ga-Al/Fe-Co nanocomposite hard magnetic materials Open
Mn-Ga-Al/Fe-Co nanocomposite hard magnetic materials were combined from hard magnetic and soft magnetic phases. The nanoparticles of hard and soft magnetic phases were fabricated by using high energy ball milling method with milling times …
View article: Long-range ferromagnetism and magnetocaloric effects in rapidly quenched Ni50−xCoxMn50−yAly ribbons
Long-range ferromagnetism and magnetocaloric effects in rapidly quenched Ni50−xCoxMn50−yAly ribbons Open
Ni50−xCoxMn50−yAly (x = 7 and 9; y = 17, 18 and 19) alloy ribbons were prepared by melt-spinning with a tangential velocity of copper wheel of 40 m s−1. X-ray diffraction patterns reveal multi-crystalline phase behavior in the fabricated r…
View article: Thermal Behavior and Magnetic Properties of Nd-Fe-B Based Exchange Spring Nanocomposites Nd&lt;sub&gt;4-x&lt;/sub&gt;Tb&lt;sub&gt;x&lt;/sub&gt;Fe&lt;sub&gt;83.5&lt;/sub&gt;Co&lt;sub&gt;5&lt;/sub&gt;Cu&lt;sub&gt;0.5&lt;/sub&gt;Nb&lt;sub&gt;1&lt;/sub&gt;B&lt;sub&gt;6&lt;/sub&gt; (x = 0, 0.2, 0.4, 0.6, 0.8 and 1) Melt-Spun Ribbons
Thermal Behavior and Magnetic Properties of Nd-Fe-B Based Exchange Spring Nanocomposites Nd<sub>4-x</sub>Tb<sub>x</sub>Fe<sub>83.5</sub>Co<sub>5</sub>Cu<sub>0.5</sub>Nb<sub>1</sub>B<sub>6</sub> (x = 0, 0.2, 0.4, 0.6, 0.8 and 1) Melt-Spun Ribbons Open
Co-rich Nd-Fe-B nanocomposite ribbons with Tb substituted have been fabricated by single roller melt spinning technique of Nd4-xTbxFe83.5Co5Cu0.5Nb1B6 (x = 0, 0.2, 0.4, 0.6, 0.8 and 1) alloys in an argon (Ar) atmosphere at a circumferentia…
View article: Investigation of magnetocaloric effect by the fast response infrared optical temperature probe.
Investigation of magnetocaloric effect by the fast response infrared optical temperature probe. Open
We present a new technique for experimental study of kinetics of phase transitions (PTs) and direct measurement of the magnetocaloric effect (MCE) in pulsed magnetic fields by using the fast response temperature probe with infrared fiber o…
View article: Fabrication of Mn-Bi Nanoparticles by High Energy Ball Milling
Fabrication of Mn-Bi Nanoparticles by High Energy Ball Milling Open
The MnBi low temperature phase with high value and positive temperature coefficient of its coercivity has a potential for production of both the nanocomposite and hybrid permanent magnets. In this report, we present our results of investig…