Results 101 to 110 of about 21,402 (315)

Coercivity enhancement in Pr9.5Fe83Zr2B5.5 magnetic nanomaterials

, 2012
The coercivity of Pr2Fe14B/alpha-Fe magnetic nanomaterial has been drastically improved from 6.8 kOe to 26 kOe by the diffusion of the Pr68Cu32 alloy. Pr68Cu32 alloy reacts with alpha-Fe to form boundary phases among Pr2Fe14B grains.
Yingchang Yang, Liu, Shunquan, Jinbo Yang, Xing, Meiying, Zhong Lin, Lin, Zhong, Meiying Xing, Chan Li, Wan, Fangming, Shunquan Liu, Changsheng Wang, Wang, Changsheng, Du, Honglin, Yang, Jinbo, Han, Jingzhi, Yang, Yingchang, Jingzhi Han, Li, Chan, Fangming Wan, Honglin Du   +19 more
core   +1 more source

High‐Power Rapid Laser‐Induced Synthesis of Multi‐functional Cobalt Metal‐Organic Framework With an Unprecedented Synthesis Efficiency

Advanced Materials Technologies, EarlyView.
Laser‐assisted synthesis enables rapid (within 1 h) and high‐yield (≥90%) production of Co‐MOFs with mesoporous structures, tunable magnetic and optical properties, and efficient adsorption of N2, CH4, and CO2 for low‐energy gas separation. DFT calculations elucidate the electronic structure and adsorption behavior.
Saliha Mutlu, Bülend Ortaç, Ali Karatutlu, Taylan Gorkan, Engin Durgun, Dilek Soyler, Saniye Soylemez, Jelena Lillepäg, Volkan Filiz, Nergis Arsu, Sevil Savaskan Yilmaz   +10 more
wiley   +1 more source

Crystallite Size Effects on Electrical Properties of Nickel Chromite (NiCr₂O₄) Spinel Ceramics: A Study of Structural, Magnetic, and Dielectric Transitions

ChemEngineering
The effect of sintering temperature on the structural, magnetic, and dielectric properties of NiCr2O4 ceramics was investigated. A powder X-ray analysis indicates that the prepared nanocrystallites effectively inhibit the cooperative Jahn–Teller ...
Nagarjuna Rao Mamidipalli, Papireddy Tiyyagura, Suryadevara Punna Rao, Suresh Babu Kothamasu, Ramyakrishna Pothu, Rajender Boddula, Noora Al-Qahtani   +6 more
doaj   +1 more source

Coercivity enhancement of (Nd,Ce)-Fe-B sintered magnets by doping Nd-Fe additives

, 2017
The effect of Nd-Fe additives on magnetic properties and microstructure in (Nd,Ce)-Fe-B sintered magnet has been investigated. By doping 3wt% Nd-Fe additives, the coercivity of the magnet increases from 10.56kOe to 12.69kOe with slight remanence decrease.
R. J. Chen, X. D. Fan, Guo, S., Ding, G. F., S. Guo, Fan, X. D., A. R. Yan, D. Lee, Chen, K., Di, J. H., G. F. Ding, Yan, A. R., Lee, D., K. Chen, Chen, R. J., J. H. Di   +15 more
core   +1 more source

A Method for Predicting Flux Loss of Multipole Magnet and Its Evaluation [PDF]

, 2011
The prediction of flux loss due to exposure at an elevated temperature is very important in applications of Nd-Fe-B magnets because of the low Curie temperature of the Nd2 Fe14 B.
Fumitoshi Yamashita, Yanai, Takeshi, Yamashita, Fumitoshi, Hiroyuki Koreeda, Koreeda, Hiroyuki, Masaki Nakano, Fukunaga, Hirotoshi, Narikiyo, Shohei, Nakano, Masaki, Shohei Narikiyo, Hirotoshi Fukunaga, Takeshi Yanai   +11 more
core   +1 more source

High‐Performance Piezoelectric Nanogenerators Based on Wurtzite BeO Nanowire Arrays

Advanced Materials Technologies, EarlyView.
This study demonstrates high‐performance piezoelectric nanogenerators based on 1D BeO nanowire arrays. The BeO nanowires exhibit a high piezoelectric coefficient (∼15.8 pm V−1) and deliver an output voltage of ∼26.1 V and power density of ∼0.32 µW cm−2.
Yoonseo Jang, Jihyeon Park, Seoyeah Oh, Jonghyun Bae, Prakash R. Sultane, Christopher W. Bielawski, Jiwon Kim, Jungwoo Oh   +7 more
wiley   +1 more source

COERCIVITY AND MICROSTRUCTURE OF R-Fe-B SINTERED PERMANENT MAGNETS

, 1988
Studies of anisotropy-coercivity correlation, microstructure and effects of surface conditions on coercivity, which have been undertaken at this laboratory in order to clarify the origin and mechanism of the intrinsic coercivity in sintered rare earth ...
S. Hirosawa, M. Sagawa
core   +1 more source

Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots

Advanced Robotics Research, EarlyView.
This perspective provides an overview of the performance mechanisms, preparation methods, and applications of strong magnetic flexible composite materials in soft actuators (such as gripping, movement, and sensing), and further explores current opportunities and challenges.
Wenwen Li, Shuai Liu, Xinyi Wang, Xinglong Gong, Shouhu Xuan   +4 more
wiley   +1 more source

Coercivity enhancement of sintered Nd-Fe-B magnets by efficiently diffusing DyF3 based on electrophoretic deposition

, 2015
Using electrophoretic deposition (EPD) method, we coated DyF3 powder onto the sintered Nd-Fe-B magnets, investigated the changes in magnetic and microstructural properties of DyF3 EPD-coated magnets and clarified the optimum diffusion temperature and ...
Guo, S., Li, X. B., Yan, G. L., Chen, L., Cao, X. J., Yan, A. R., Yi, P. P.   +6 more
core  

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source