Zobrazeno 1 - 10
of 1 964
pro vyhledávání: '"H. W. CHANG"'
Publikováno v:
AIP Advances, Vol 13, Iss 2, Pp 025033-025033-5 (2023)
We investigated the structure, ferroelectric, magnetic, and leakage characteristics of Bi0.95H0.05FeO3 (BHFO) polycrystalline films with H = Gd, Tb, Dy, Ho, and Er. Bi0.95H0.05FeO3 films were confirmed to mainly consist of the perovskite phase, and t
Externí odkaz:
https://doaj.org/article/f759f076ea5c44b882a6ec6aa85bd681
Publikováno v:
AIP Advances, Vol 13, Iss 2, Pp 025202-025202-5 (2023)
We hereby present a simple process, called in situ two-end diffusion (TED), to reach coercivity enhancement with almost unchanged energy product for hot deformed (HD) NdFeB magnets. Coercivity of the HD magnets is increased from 15.1 to 18.7 kOe for
Externí odkaz:
https://doaj.org/article/032605080c3c4138a26ca124d319c9d6
Publikováno v:
AIP Advances, Vol 13, Iss 2, Pp 025226-025226-5 (2023)
Traditional NdFeB sintered magnets with coercivity larger than 20 kOe, called super-high (SH) level, usually contains considerable amount of high-cost heavy rare earth (HRE), such as Dy or Tb. In this work, high coercivity of 21.4 kOe, which correspo
Externí odkaz:
https://doaj.org/article/3168bbb2493a44c98b1328d83b4c1a31
Publikováno v:
AIP Advances, Vol 13, Iss 2, Pp 025308-025308-5 (2023)
Directional growth effect on magneto-mechanical properties of Fe81Al19 alloy is studied. The ideal model of heat flux for directional solidification (DS) technique is proposed, and the tuned A/L (the ratio of cross-sectional area and length for the i
Externí odkaz:
https://doaj.org/article/4168b7a5034d47d59d5e1c6dae3d6522
Publikováno v:
AIP Advances, Vol 11, Iss 2, Pp 025001-025001-4 (2021)
Significant enhancement in coercivity for hot deformed (HD) NdFeB magnets is achieved by doping R80Al20 (R= La, Ce, Dy, Tb) alloy powders. All studied samples exhibit fine microstructure with good (00L) texture. By doping R80Al20 powders, the coerciv
Externí odkaz:
https://doaj.org/article/e10c108e220740e78d804b1bca6f639f
Publikováno v:
AIP Advances, Vol 11, Iss 2, Pp 025101-025101-5 (2021)
Coercivity enhancement of the sintered NdFeB magnets by grain boundary diffusion (GBD) with Tb70Cu30 powders prepared by different milling methods has been compared. The commercial NdFeB sintered magnets with the magnetic properties of Br=14.0 kG, iH
Externí odkaz:
https://doaj.org/article/3a453e5b97af4d79bd7f2cd2616e2b96
Publikováno v:
AIP Advances, Vol 10, Iss 2, Pp 025035-025035-5 (2020)
Magnetic properties and phase composition of both MnN/CoFe (MnN at top of bilayer) and CoFe/MnN films (MnN at bottom of bilayer) bilayers through annealing at various temperatures (Ta = 300-450 °C) and then cooling to room temperature under the appl
Externí odkaz:
https://doaj.org/article/8bab83b115ca49978f2abddedfb70996
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLII-3, Pp 329-333 (2018)
Due to the limited spatial resolution of remote hyperspectral sensors, pixels are usually highly mixed in the hyperspectral images. Endmember extraction refers to the process identifying the pure endmember signatures from the mixture, which is an imp
Externí odkaz:
https://doaj.org/article/fc4fd489470049deb1c1dc0f4b008d33
Publikováno v:
AIP Advances, Vol 9, Iss 12, Pp 125238-125238-4 (2019)
A significant coercivity enhancement of the commercial NdFeB magnets with the magnetic properties of (BH)max = 48.4 MGOe and iHc = 17.5 kOe through grain boundary diffusion (GBD) with low-melting Tb55R20Cu25 alloys is demonstrated. Adopting Tb55R20Cu
Externí odkaz:
https://doaj.org/article/75292a7006af4b04a8bee9d884f3a3dc
Autor:
H. W. Chang, F. T. Yuan, P. Y. Yeh, Y. C. Chen, Y. L. Lai, P. H. Pan, C. R. Wang, Lance Horng, W. C. Chang
Publikováno v:
AIP Advances, Vol 9, Iss 3, Pp 035330-035330-5 (2019)
Structure and magnetic properties of sputter-prepared Co(5 nm)/MnPt(20 nm) and MnPt/Co polycrystalline films with various annealing temperatures (T) have been compared. XRD and TEM analysis show that MnPt is more compressive in film plane for Co/MnPt
Externí odkaz:
https://doaj.org/article/15a4726e8a85470bbafe41ae803d54cf