Project supported by the State Key Laboratory for Advanced Metals and Materials(2019Z-14)。
In this paper,we systematically investigated the microstructure evolution and coercivity mechanism of hydrogenation-disproportionation-desorption-recombination(HDDR)treated Nd-Fe-B strip cast alloys by transmission el...
Project supported by European Community’s Horizon 2020Program [H2020/2014-2019] under grant Agreement No.674973(MSCA-ETN DEMETER)
The dependence of the magnetic properties on the particle size of recycled HDDR Nd-Fe-B powders was investigated,with the aim to assess the reprocessing potential of the end-of-life scrap magnets via spark plasma sint...
Project supported by the National Centre for Research and Development(INNOTECH-K2/IN2/18/181960/NCBR/13)
Transformation-temperature-hydrogen pressure phase diagram was constructed for a Nd15Fe79B6 alloy in order to estimate appropriate conditions for hydrogenation, disproportionation, desorption and recombination reacti...
supported by the National Natural Science Foundation of China(51171122);the Sichuan Province Science and Technology Support Program(2013GZX0164;2013GZ0056)
The partially recombined compacts with ultrafine grain size were taken advantage of preparing anisotropic nanocrystalline magnets with full density and homogenous microstructure and texture by reactive deformation und...
The evolution of phase compositions, phase change and microstructure in Sm2Fe17 alloys during hydrogenationdisproportion process were systematically studied with XRD, SEM, EDX methods. Research indicates that HD proce...
The phenomenon of uneven density distribution is inevitable in the process of preparing bonded magnets with complicated shape or with large geometric size by compression molding due to the friction among magnetic powd...
The effect of cobalt on the magnetic properties and anisotropy of HDDR anisotropic NdFeB was studied. It is found that Co is helpful for preparing anisotropic NdFeB with high coercivity. The research on the initial mi...
Effects of alloying additions of Co and Zr on microstructure and magnetic anisotropy of the HDDR powder of Nd Fe B alloy were investigated. It was found that the HDDR powder of Nd Fe Zr B alloy is nearly magnetic...
In the present paper the microstructure variation of Nd 15 Fe 77 B 8 alloy has been investigated using scanning electron microscopy, optical microscopy and X ray diffraction in the hydrogenation disproporti...
The present paper describes the effect of alloy composition,homogenization and dehy-drogenization procedures on magnetic properties of NdFeB type of HDDR powders and the bonded magnet.The results showed that the powde...