Magnetic alignment in powder magnet processing

1994 ◽  
Vol 76 (10) ◽  
pp. 6757-6759 ◽  
Author(s):  
S. Liu
Keyword(s):  
Magnetic Alignment ◽  
Powder Magnet

Tuning the Magnetic Alignment of Cellulose Nanocrystals from Perpendicular to Parallel Using Lepidocrocite Nanoparticles

2019 ◽  
Author(s):  
Valentina Guccini ◽  
Sugam Kumar ◽  
Yulia Trushkina ◽  
Gergely Nagy ◽  
Christina Schütz ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Cellulose Nanocrystals ◽  
Small Angle Neutron Scattering ◽  
Lower Amount ◽  
Magnetic Alignment ◽  
Polarized Optical Microscopy ◽  
Parallel Orientation ◽  
Weak Magnetic Fields

The magnetic alignment of cellulose nanocrystals (CNC) and lepidocrocite nanorods (LpN), pristine and in hybrid suspensions has been investigated using contrast-matched small-angle neutron scattering (SANS) under in situ magnetic fields (0 – 6.8 T) and polarized optical microscopy. The pristine CNC (diamagnetic) and pristine LpN (paramagnetic) align perpendicular and parallel to the direction of field, respectively. The alignment of both the nanoparticles in their hybrid suspensions depends on the relative amount of the two components (CNC and LpN) and strength of the applied magnetic field. In the presence of 10 wt% LpN and fields < 1.0 T, the CNC align parallel to the field. In the hybrid containing lower amount of LpN (1 wt%), the ordering of CNC is partially frustrated in all range of magnetic field. At the same time, the LpN shows both perpendicular and parallel orientation, in the presence of CNC. This study highlights that the natural perpendicular ordering of CNC can be switched to parallel by weak magnetic fields and the incorporation of paramagnetic nanoparticle as LpN, as well it gives a method to influence the orientation of LpN.<br>

Magnetic alignment in nominally non-magnetic hexagonal metal hydrides: NMR

2003 ◽  
Vol 24 (4) ◽  
pp. 254-262 ◽  
Author(s):  
Vikram D. Kodibagkar ◽  
Caleb D. Browning ◽  
Xiaoping Tang ◽  
Yue Wu ◽  
Robert C. Bowman ◽  
...  
Keyword(s):  
Metal Hydrides ◽  
Magnetic Alignment

Fabrication of textured alumina by magnetic alignment via gelcasting based on low-toxic system

2014 ◽  
Vol 34 (15) ◽  
pp. 3841-3848 ◽  
Author(s):  
Agnieszka Szudarska ◽  
Tadeusz Mizerski ◽  
Yoshio Sakka ◽  
Tohru S. Suzuki ◽  
Mikolaj Szafran
Keyword(s):  
Magnetic Alignment ◽  
Low Toxic

scholarly journals Magnetic memory based on magnetic alignment of a paramagnetic ionic liquid near room temperature

2011 ◽  
Vol 47 (15) ◽  
pp. 4475 ◽  
Author(s):  
Yusuke Funasako ◽  
Tomoyuki Mochida ◽  
Takashi Inagaki ◽  
Takahiro Sakurai ◽  
Hitoshi Ohta ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Room Temperature ◽  
Magnetic Alignment ◽  
Magnetic Memory

scholarly journals Additive Technology Methods for Manufacturing Permanent Magnets

2021 ◽  
Vol 346 ◽  
pp. 01010
Author(s):  
Dmitry Efremov ◽  
Alla Gerasimova ◽  
Nikita Kislykh ◽  
Cristina Shaibel
Keyword(s):  
Selective Laser Melting ◽  
Permanent Magnets ◽  
Magnetic Alloy ◽  
Gas Atomization ◽  
Layer By Layer ◽  
Laser Melting ◽  
Alloy Casting ◽  
Standard Data ◽  
Product Models ◽  
Powder Magnet

The paper presents the results of studying the possibility of using the selective laser melting method for production of permanent magnets. This process allows to manufacture not only product models and prototypes, but also finished functional products by adding material layer by layer and bonding particles and layers to each other. We have considered the application areas of selective laser melting (SLM) based on powders obtained by different methods for the study. In addition, we have analyzed the traditional magnetic alloy casting technology, studied magnetic materials, and compared the powder magnet properties with standard data. We have found that the parameters of powders obtained by gas atomization are qualitatively superior to those of powders obtained using other methods, whereas the resulting magnets meet the requirements for magnets. Based on the 25Kh15KA alloy powder atomized by gas atomization, a SLM plant allows to manufacture permanent magnets with a material density of 7.59–7.55 g/cu.cm, which meets the requirements recommended by the State Standard GOST 24897-81, and to obtain the magnet properties that can be achieved using traditional metallurgical technologies.

scholarly journals Utilizing yield-stress fluids to suppress chaining during magnetic alignment of microdisks via rotating fields

AIChE Journal ◽  
2018 ◽  
Vol 64 (8) ◽  
pp. 3215-3226
Author(s):  
Mingyang Tan ◽  
Adam L. Lambert ◽  
Britany M. Swann ◽  
Han Song ◽  
Pallavi Dhagat ◽  
...  
Keyword(s):  
Yield Stress ◽  
Magnetic Alignment ◽  
Yield Stress Fluids

Simulation of Large-Scale Magnetic Manipulation of Micro/Nano-Material Based on Monte Carlo Method

2020 ◽  
Author(s):  
Che-Fu Su ◽  
Xinrui Xiang ◽  
Jirui Wang ◽  
Edward Fratto ◽  
Majid Charmchi ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Monte Carlo ◽  
Large Scale ◽  
Magnetic Alignment ◽  
Nano Materials ◽  
Magnetic Assembly ◽  
Nano Material ◽  
Magnetic Strength ◽  
Aggregate Structures ◽  
Monte Carlo Simulation Model

Abstract Magnetic assembly of micro/nano materials are of great interest due to their unique properties. These nano-scale materials can be ensemble with other matrixes to prepare for new functional micro/nano composites with enhanced specific properties such as, thermal conductivity. In this study, we demonstrated the distribution and magnetic alignment of nickel (Ni) nanoparticle/nanowires inside of a non-magnetic matrix, (e.g., water or a molten wax), experimentally and computationally. A two-dimensional Monte Carlo simulation model is employed to investigate the aggregate structures of Ni nanoparticle/nanowires subjected to a one-directional static magnetic field. It is anticipated that the applied magnetic strength will influence the attractive forces between nanoparticle/nanowires that will produce chain-like cluster structures parallel to magnetic direction where the aligned chains will be separated by a range of distances that are also function of magnetic field strength.

3D Magnetic Alignment of Cardiac Cells in Hydrogels

2020 ◽  
Vol 3 (10) ◽  
pp. 6802-6810
Author(s):  
Sophie Richard ◽  
Amanda K. A. Silva ◽  
Gaëtan Mary ◽  
Hélène Ragot ◽  
Jose E. Perez ◽  
...  
Keyword(s):  
Cardiac Cells ◽  
Magnetic Alignment
Sign in / Sign up

Export Citation Format

Share Document