scholarly journals Magnetic Properties and Heat-treatment Conditions of Permanent Magnet Wires Produced by Spinning Method in Rotating Liquid

2013 ◽  
Vol 21 (4) ◽  
pp. 569-572
Author(s):  
Takashi TODAKA ◽  
Subaru MATSUMURA ◽  
Masato ENOKIZONO
Keyword(s):  
Heat Treatment ◽  
Magnetic Properties ◽  
Permanent Magnet ◽  
Treatment Conditions ◽  
Rotating Liquid

Heat-treatment conditions as a factor in the magnetic properties of polyacrylonitrile carbon fibre

1976 ◽  
Vol 8 (3) ◽  
pp. 259-261
Author(s):  
P. A. Pshenichkin ◽  
T. N. Shashkova ◽  
V. M. Martynov ◽  
L. S. Tyan ◽  
V. S. Samoilov ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Magnetic Properties ◽  
Carbon Fibre ◽  
Treatment Conditions

Effects of Heat Treatment Conditions on Magnetic Properties and Structural Features of Nanocrystalline Fe79Zr10N11 Films

2009 ◽  
Vol 152-153 ◽  
pp. 70-74 ◽  
Author(s):  
E.N. Sheftel ◽  
Rauf S. Iskhakov ◽  
S.V. Komogortsev ◽  
P.K. Sidorenko ◽  
Nikolai S. Perov
Keyword(s):  
Heat Treatment ◽  
Magnetic Properties ◽  
Magnetic Anisotropy ◽  
Structural Features ◽  
Soft Magnetic ◽  
Exchange Correlation ◽  
Calculation Technique ◽  
Treatment Conditions ◽  
Random Magnetic Anisotropy ◽  
Anisotropy Model

Data on the random magnetic anisotropy and exchange correlation length in soft magnetic nanocrystalline Fe79Zr10N11 films were obtained using a calculation technique in frame of the random magnetic anisotropy model. The calculations are performed using approach magnetization to saturation curves. The local magnetic anisotropy fields (Ha), and magnetic anisotropy correlation radii (Rс) reduced to =(A/K)1/2 were determined for the films annealed at 475 and 6000 C for 0.5, 1, 2, and 3 h. The correlation Hc ~(Rc/)3 for the all annealed films was found.

Effect of Heat Treatment on Microstructure and Magnetic Properties of Strontium Hexaferrite Nanoparticles Prepared in Presence of Non-Ionic Surfactant

2013 ◽  
Vol 202 ◽  
pp. 193-205
Author(s):  
Nital R. Panchal ◽  
Rajshree B. Jotania
Keyword(s):  
Heat Treatment ◽  
Magnetic Properties ◽  
Tween 80 ◽  
Strontium Hexaferrite ◽  
Ionic Surfactant ◽  
Treatment Conditions ◽  
Heat Treated ◽  
Higher Temperature ◽  
Co Precipitation ◽  
Microstructure And Magnetic Properties

SrFe12O19 hexaferrite particles containing polyoxyethelene (20) sorbitan monolate (Tween-80) were synthesized by a chemical co-precipitation technique with a precipitator NH3.H2O. The prepared Sr-M hexaferrite precipitates were heat treated at various temperatures 650 oC, 750 oC, 850 oC, 950oC and 1100oC for 4 hrs in a muffle furnace. The obtained Sr-M powders were characterized by using various instrumental techniques, like FTIR, TGA, XRD, SEM, VSM and Mössbauer spectroscopy. Their physical as well as Magnetic properties were compared. It was observed from XRD results that heat treatment conditions play significant role in the formation of pure SrFe12O19 hexaferrite phase and also in the grain size. The estimated particle size is of the order of nanometer when suitable calcination temperature is applied. SEM micrographs show an increase in crystallite size of the resultant SrFe12O19 hexaferrite particles sintered at higher temperature (1100 oC). Mössbauer spectroscopic measurements were carried out at room temperature. Mössbauer analysis indicates the presence Fe3+ ions in the prepared strontium hexaferrite particles.

scholarly journals Nanocomposite permanent magnetic materials Nd-Fe-B type: The influence of nanocomposite on magnetic properties

2005 ◽  
Vol 41 (1) ◽  
pp. 95-102 ◽  
Author(s):  
Nadezda Talijan ◽  
Jasna Stajic-Trosic ◽  
Aleksandar Grujic ◽  
Vladan Cosovic ◽  
Vladimir Menushenkov ◽  
...  
Keyword(s):  
Magnetic Material ◽  
Heat Treatment ◽  
Magnetic Properties ◽  
Permanent Magnet ◽  
Exchange Coupling ◽  
Coupling Effect ◽  
Soft Magnetic ◽  
Magnetic Phases ◽  
New Type ◽  
Permanent Magnet Materials

The influence on the magnetic properties of nanocristalline ribbons and powders has character of microstructure, between others ? the grain size volume of hard and soft magnetic phases and their distribution. Magnetic properties of ribbons and powders depend mainly on their chemical composition and parameters of their heat treatment [1]. Technology of magnets from nanocristalline ribbon consists of the following process: preparing the Nd-Fe- B alloy, preparing the ribbon, powdering of the ribbon, heat treatment of the powder and finally preparing the magnets. Nanocomposite permanent magnet materials based on Nd-Fe- B alloy with Nd low content are a new type of permanent magnetic material. The microstructure of this nanocomposite permanent magnet is composed of a mixture of magnetically soft and hard phases which provide so called exchange coupling effect.

Effects of heat treatment conditions on the structural and magnetic properties of MgCuZn nano ferrite

2012 ◽  
Vol 38 (7) ◽  
pp. 5813-5820 ◽  
Author(s):  
Ch. Sujatha ◽  
K. Venugopal Reddy ◽  
K. Sowri Babu ◽  
A. RamaChandra Reddy ◽  
K.H. Rao
Keyword(s):  
Heat Treatment ◽  
Magnetic Properties ◽  
Treatment Conditions ◽  
Structural And Magnetic Properties

Dependence of the magnetic properties of steels Ni32Cr10 and Ni32Cr12 on heat-treatment conditions

1968 ◽  
Vol 11 (4) ◽  
pp. 54-57
Author(s):  
B. P. Khromov ◽  
G. N. Dement'ev ◽  
G. A. Buzunov
Keyword(s):  
Heat Treatment ◽  
Magnetic Properties ◽  
Treatment Conditions

Impact of the heat treatment conditions on crystal structure, morphology and magnetic properties evolution in BaM nanohexaferrites

2021 ◽  
Vol 866 ◽  
pp. 158961 ◽  
Author(s):  
A.V. Trukhanov ◽  
K.A. Darwish ◽  
M.M. Salem ◽  
O.M. Hemeda ◽  
M.I. Abdel Ati ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Heat Treatment ◽  
Magnetic Properties ◽  
Treatment Conditions ◽  
Structure Morphology

Microstructures and magnetic properties of cast alnico 8 permanent magnets under various heat treatment conditions

2019 ◽  
Vol 552 ◽  
pp. 136-141 ◽  
Author(s):  
Sajjad Ur Rehman ◽  
Qingzheng Jiang ◽  
Weikai Lei ◽  
Kai Liu ◽  
Liangliang Zeng ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Magnetic Properties ◽  
Permanent Magnets ◽  
Treatment Conditions
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