Search scope:
排序: Display mode:
Structural and Magnetic Properties of Nanocomposite Nd–Fe–B Prepared by Rapid Thermal Processing Review
Jinbo Yang, Jingzhi Han, Haidong Tian, Liang Zha, Xiongzuo Zhang, Chol Song Kim, Dong Liang, Wenyun Yang, Shunquan Liu, Changsheng Wang
Engineering 2020, Volume 6, Issue 2, Pages 131-139 doi: 10.1016/j.eng.2019.12.008
Nanoscale permanent magnetic materials, which possess excellent magnetic and mechanical properties, thermal stability, and corrosion resistance, have become a research hotspot for permanent magnets. In reality, however, the obtained maximum energy product, (BH)max, is not satisfactory in comparison with the theory limit, especially for exchange-coupled nanocomposite magnets. The construction of an ideal microstructure still remains a challenge in the synthesis and preparation of nanoscale permanent magnets. This work reported the impact of rapid thermal process (RTP) with electron-beam heating on the microstructures of Nd12.5-xFe80.8+xB6.2Nb0.2Ga0.3 (x = 0, 2.5) nanocomposites. It was found that the crystallization time was greatly reduced, from 15 min under the conventional annealing conditions to 0.1 s under the RTP. For Nd2Fe14B single-phase materials, the crystallization temperature of the RTP ribbons decreased by about 248 °C compared with that of the ribbons produced by the conventional annealing method. A synergetic crystallization of the Nd2Fe14B and α-Fe phases was observed under the RTP, which restrained not only the shape, size distribution, and compositions of the hard and the soft phases, but also the interface between them. This modification effect became more obvious as the fraction of Fe increased. Due to the improvement in the uniformity of the Nd2Fe14B and α-Fe phases, and their grain size distribution, better magnetic properties were achieved using RTP in comparison with the conventional annealing method.
Keywords: Nanocomposites Electron-beam heating Landau model and Langevin dynamics simulation Synergetic crystallization
Model reduction of contact dynamics simulation using a modified Lyapunov balancing method
Jianxun LIANG, Ou MA, Caishan LIU
Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4, Pages 383-391 doi: 10.1007/s11465-011-0244-9
Keywords: contact dynamics dynamic simulation model reduction finite element method
Numerical simulation of fluid dynamics in the stirred tank by the SSG Reynolds Stress Model
Nana QI, Hui WANG, Kai ZHANG, Hu ZHANG
Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4, Pages 506-514 doi: 10.1007/s11705-010-0508-7
Keywords: stirred tank fluid dynamics numerical simulation SSG Reynolds Stress Model MRF
Yang Zhou, Phillip Choi
Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3, Pages 440-447 doi: 10.1007/s11705-017-1626-2
Keywords: molecular dynamics simulation amphiphilic block copolymer free volume water diffusivity fujita model
Computational fluid dynamics simulation of aerosol transport and deposition
Yingjie TANG, Bing GUO
Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3, Pages 362-377 doi: 10.1007/s11783-011-0365-8
Keywords: computational fluid dynamics (CFD) aerosol transport deposition
A two-dimensional numerical model for eutrophication in Baiyangdian Lake
Xudong WANG, Shushen ZHANG, Suling LIU, Jingwen CHEN
Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6, Pages 815-824 doi: 10.1007/s11783-011-0383-6
Keywords: eutrophication eco-dynamics hydrodynamics improved Water Quality Analysis Simulation Program (WASP) model
Molecular dynamics simulation on DNA translocating through MoS
Daohui Zhao, Huang Chen, Yuqing Wang, Bei Li, Chongxiong Duan, Zhixian Li, Libo Li
Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4, Pages 922-934 doi: 10.1007/s11705-020-2004-z
Keywords: DNA sequencing MoS2 molecular dynamics simulation nanopore ionic current
Molecular dynamics simulation of diffusivity
LIU Juanfang, ZENG Danling, LI Qin, GAO Hong
Frontiers in Energy 2008, Volume 2, Issue 3, Pages 359-362 doi: 10.1007/s11708-008-0039-9
Keywords: diffusivity Equilibrium molecular influence potential
Simulation of bubble column reactors using CFD coupled with a population balance model
Tiefeng WANG
Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2, Pages 162-172 doi: 10.1007/s11705-009-0267-5
Keywords: bubble column computational fluid dynamics bubble breakup and coalescence population balance model bubble
Applying system dynamics to strategic decision making in construction
SangHyun LEE
Frontiers of Engineering Management 2017, Volume 4, Issue 1, Pages 35-40 doi: 10.15302/J-FEM-2017002
Keywords: strategic project management construction management system dynamics feedback process hybrid simulation
Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3, Pages 570-579 doi: 10.1007/s11465-021-0642-6
Keywords: silicon ReaxFF molecular dynamics friction damage
Many-body dissipative particle dynamics simulation of wetting phenomena
Ying ZHAO, Ye YUE, Xianren ZHANG, Shuangyang LI, Atul SAJJANHAR,
Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3, Pages 280-282 doi: 10.1007/s11705-009-0278-2
Keywords: development satisfactory traditional dissipative phenomena solid-liquid interface
Numerical simulation of micro scale flowing and boiling
Wen WANG, Rui ZHUAN,
Frontiers in Energy 2009, Volume 3, Issue 4, Pages 396-401 doi: 10.1007/s11708-009-0049-2
Keywords: volume-of-fluid (VOF) micro channel nucleate boiling bubble dynamics simulation
CFD simulation on membrane distillation of NaCl solution
Zhaoguang XU, Yanqiu PAN, Yalan YU
Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3, Pages 293-297 doi: 10.1007/s11705-009-0204-7
Keywords: membrane distillation computational fluid dynamics (CFD) simulation temperature polarization carbon membrane
Simulation of abrasive flow machining process for 2D and 3D mixture models
Rupalika DASH,Kalipada MAITY
Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4, Pages 424-432 doi: 10.1007/s11465-015-0366-6
Keywords: abrasive flow machining (AFM) computational fluid dynamics (CFD) modeling mixture model
Title Author Date Type Operation
Structural and Magnetic Properties of Nanocomposite Nd–Fe–B Prepared by Rapid Thermal Processing
Jinbo Yang, Jingzhi Han, Haidong Tian, Liang Zha, Xiongzuo Zhang, Chol Song Kim, Dong Liang, Wenyun Yang, Shunquan Liu, Changsheng Wang
Journal Article
Model reduction of contact dynamics simulation using a modified Lyapunov balancing method
Jianxun LIANG, Ou MA, Caishan LIU
Journal Article
Numerical simulation of fluid dynamics in the stirred tank by the SSG Reynolds Stress Model
Nana QI, Hui WANG, Kai ZHANG, Hu ZHANG
Journal Article
Molecular dynamics study of water diffusion in an amphiphilic block copolymer with large difference in
Yang Zhou, Phillip Choi
Journal Article
Computational fluid dynamics simulation of aerosol transport and deposition
Yingjie TANG, Bing GUO
Journal Article
A two-dimensional numerical model for eutrophication in Baiyangdian Lake
Xudong WANG, Shushen ZHANG, Suling LIU, Jingwen CHEN
Journal Article
Molecular dynamics simulation on DNA translocating through MoS
Daohui Zhao, Huang Chen, Yuqing Wang, Bei Li, Chongxiong Duan, Zhixian Li, Libo Li
Journal Article
Molecular dynamics simulation of diffusivity
LIU Juanfang, ZENG Danling, LI Qin, GAO Hong
Journal Article
Simulation of bubble column reactors using CFD coupled with a population balance model
Tiefeng WANG
Journal Article
understanding of interfacial processing mechanism of silicon in water environment: A ReaxFF molecular dynamicssimulation
Journal Article
Many-body dissipative particle dynamics simulation of wetting phenomena
Ying ZHAO, Ye YUE, Xianren ZHANG, Shuangyang LI, Atul SAJJANHAR,
Journal Article
CFD simulation on membrane distillation of NaCl solution
Zhaoguang XU, Yanqiu PAN, Yalan YU
Journal Article