Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements

Talijan, N.; Ćosović, Vladan; Žák, T.; Grujić, Aleksandar; Stajić-Trošić, Jasna

doi:10.2298/jmmb0901111t

Cited by 3 publications

(4 citation statements)

References 10 publications

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“…In order to determine the in-plane tensile properties of the polymer matrix composite materials reinforced by the Nd-Fe-B magnetic particles, standard test tensile method was used [13]. The ultimate tensile stress σ m of the investigated magnetic composite materials was calculated using Eq.…”

Section: Resultsmentioning

confidence: 99%

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Mechanical and magnetic properties of composite materials with polymer matrix

Grujić¹,

Talijan²,

Stojanović³

et al. 2010

J min metall B Metall

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Many of modern technologies require materials with unusual combinations of properties that cannot be met by the conventional metal alloys, ceramics, and polymeric materials. Material property combinations and ranges have been extended by the development of composite materials. Development of Nd-Fe-B/polymer composite magnetic materials has significantly increased interest in research and development of bonded magnets, since particles of Nd-Fe-B alloys are proved to be very suitable for their production. This study investigates the mechanical and magnetic properties of compression molded Nd-Fe-B magnets with different content of magnetic powder in epoxy matrix. Mechanical properties were investigated at ambient temperature according to ASTM standard D 3039-00. The obtained results show that tensile strength and elongation decrease with an increase of Nd-Fe-B particles content in epoxy matrix. The modulus of elasticity increases, which means that in exploitation material with higher magnetic powder content, subjected to the same level of stress, undergoes 2 to 3.5 times smaller deformation. Scanning Electron Microscopy (SEM) was used to examine the morphology of sample surfaces and fracture surfaces caused by the tensile strength tests. The results of SQUID magnetic measurements show an increase of magnetic properties of the investigated composites with increasing content of Nd-Fe-B particles

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Section: Resultsmentioning

confidence: 99%

“…High values of remanence are achieved when the iron content is increased and Nd 2 Fe 14 B/α-Fe and/or Nd 2 Fe 14 B/Fe 3 B type nanocomposite microstructure are developed [1,10]. Nanocrystalline permanent magnets have been extensively studied because of their potential for production of bonded magnets [11,12,13].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and magnetic properties of composite materials with polymer matrix

Grujić¹,

Talijan²,

Stojanović³

et al. 2010

J min metall B Metall

Self Cite

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“…This type of alloys is characterized by intergranular exchange coupling between the grains of the same Nd 2 Fe 14 B hard magnetic phase [9,10] and exhibit high-quality magnetic performance with high value of maximum energy product. Full characterization and analysis of different Nd-Fe-B structures were reported previously [11,12]. Comparisons between nanostructures with various content of neodymium clearly show the differences between two investigated structures [13].…”

Section: Introductionmentioning

confidence: 80%

Nanocrystalline Nd-Fe-B Alloys for Polymer-Bonded Magnets Production

Grujić

Ćosović

et al. 2012

ISRN Nanotechnology

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This study presents how different nanostructures of starting Nd-Fe-B particles have influence on magnetic properties of polymer-bonded Nd-Fe-B materials. Two types of nanocrystalline Nd-Fe-B alloys were used for polymer composite production by compression molding technique. The particles with low neodymium content (Nd-low) have nanocomposite structure with small exchange coupling effect between hard and soft magnetic phase. In other hand, practically monophase hard magnetic structure of Nd-Fe-B particles with stoichiometric neodymium content (Nd-stoich) shows improved magnetic properties. With increasing concentration of polymer matrix, the coercivity (Hcb), remanence (Br), and maximum energy product ((BH)max) decrease more prominenty for composites with stoichiometric Nd-Fe-B content.

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“…Due to the rapid development in some fields, such as electronic communication, automation and recording media, extensive attentions have been paid to Fe-based alloys [1,2]. The family of Fe-Cu-Nb-Si-B alloys (also called Finemet alloys) is a kind of excellent soft magnetic materials and have widely been used in industrial applications [3,4].…”

Section: Introductionmentioning

confidence: 99%

Influence of Al addition on the thermal stability and mechanical properties of Fe76.5-xCu1Si13.5b9Alx amorphous alloys

Sun

Song

2012

J min metall B Metall

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This paper fabricated Fe76.5-xCu1Si13.5B9Alx (x=0,1,2,3,5,7 at.%) amorphous ribbons using singleroller melt-spinning method. The effect of Al content on the thermal stability and mechanical properties was investigated. The results indicated that Al addition have little effect on the amorphous formation ability of the alloys. On the other hand, increasing the Al content can substantially increase Tx2, which corresponds to the crystallization of Fe borides. Nanoindentation tests indicated that hardness of the alloys increase slightly with increasing the Al content, and Young’s modulus has a complicated relationship with the Al content

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Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements

Cited by 3 publications

References 10 publications

Mechanical and magnetic properties of composite materials with polymer matrix

Mechanical and magnetic properties of composite materials with polymer matrix

Nanocrystalline Nd-Fe-B Alloys for Polymer-Bonded Magnets Production

Influence of Al addition on the thermal stability and mechanical properties of Fe76.5-xCu1Si13.5b9Alx amorphous alloys

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