Thermal, magnetic and magnetocaloric properties of Fe80−M B10Zr9Cu1 (M = Ni, Ta; x= 0, 3, 5) amorphous alloys

Zhong, Xichun; Tian, H.C.; Wang, S.S.; Liu, Zhongwu; Zheng, Zhigang; Zeng, Deliang

doi:10.1016/j.jallcom.2015.02.037

Cited by 41 publications

(7 citation statements)

References 36 publications

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“…Compared with Gd [58], the values of (−∆S M ) max (~3.9 J/kg•K@2 T at 291 K) and RCP (209.2 J/kg@2 T) of the LaFe 11.6 Si 1.4 /10 wt.%Ce 2 Co 7 composite is smaller. For an applied field change of 2 T, the values of (−∆S M ) max and RCP for the LaFe 11.6 Si 1.4 /15 wt.%Ce 2 Co 7 composite (Table 2) are much larger than those of Fe 77 Ta 3 B 10 Zr 9 Cu 1 amorphous ribbons ((−∆S M ) max ~1.47 J/kg•K@2 T at 336 K; RCP~123.9 J/kg) in the similar temperature [59].…”

Section: Thermal Conductivity Mechanical and Magnetic Propertiesmentioning

confidence: 91%

One-Step Sintering Process for the Production of Magnetocaloric La(Fe,Si)13-Based Composites

Zhong

Dong

Huang

et al. 2022

Metals

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A one-step sintering process was developed to produce magnetocaloric La(Fe,Si)13/Ce-Co composites. The effects of Ce2Co7 content and sintering time on the relevant phase transformations were determined. Following sintering at 1373 K/30 MPa for 1–6 h, the NaZn13-type (La,Ce)(Fe,Co,Si)13 phase formed, the mass fraction of α-Fe phase reduced and the CeFe7-type (La,Ce)(Fe,Co,Si)7 phase appeared. The mass fraction of the (La,Ce)(Fe,Co,Si)7 phase increased, and the α-Fe phase content decreased with increasing Ce2Co7 content. However, the mass fraction of the (La,Ce)(Fe,Co,Si)7 phase reduced with increasing sintering time. The EDS results showed a difference in concentration between Co and Ce at the interphase boundary between the 1:13 phase and the 1:7 phase, indicating that the diffusion mode of Ce is reaction diffusion, while that of Co is the usual vacancy mechanism. Interestingly, almost 100 % single phase (La,Ce)(Fe,Co,Si)13 was obtained by appropriate Ce2Co7 addition. After 6 h sintering at 1373 K, the Ce and Co content in the (La,Ce)(Fe,Co,Si)13 phase increased for larger Ce2Co7 content. Therefore, the Curie temperature increased from 212 K (binder-free sample) to 331 K (15 wt.% Ce2Co7 sample). The maximum magnetic entropy change (−∆SM)max decreased from 8.8 (binder-free sample) to 6.0 J/kg∙K (15 wt.% Ce2Co7 sample) under 5 T field. High values of compressive strength (σbc)max of up to 450 MPa and high thermal conductivity (λ) of up to 7.5 W/m∙K were obtained. A feasible route to produce high quality La(Fe,Si)13 based magnetocaloric composites with large MCE, good mechanical properties, attractive thermal conductivity and tunable TC by a one-step sintering process has been demonstrated.

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Section: Thermal Conductivity Mechanical and Magnetic Propertiesmentioning

confidence: 91%

One-Step Sintering Process for the Production of Magnetocaloric La(Fe,Si)13-Based Composites

Zhong

Dong

Huang

et al. 2022

Metals

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“…Таким образом, в рамках модели микронеоднородного строения АМС можно предположить, что в АМС с содержанием Cr 8,5 ат.% возможно наличие микрогруппировок, по крайней мере, двух ти-пов: микрообластей, обеднённых бором и состоящих преимуще-ственно из атомов металла (твёрдый раствор хрома в -Fe или -Fe), и микрообластей, обогащённых бором и характеризующихся БП по типу (Fe,Cr) 3 В, а для АМС с 27,2 ат.% хрома, возможно ещё и нали-чие обогащённых хромом микрообластей со структурой типа (Fe,Cr) 2 следованных АМС чётко видно наличие плеча на правом склоне первого пика в области расстояний r 3,0-3,1 Å, причём наблюда-ется чёткая корреляция интенсивности этого побочного максимума (плеча) с изменением содержания хрома в сплаве. Для парциальной ФРРА вокруг атомов хрома также наблюдается наличие небольшого наплыва на правом склоне первого пика ФРРА в области тех же расстояний, однако с обратной корреляцией ин-тенсивности этого наплыва с содержанием хрома в сплавах.…”

Section: результаты и их обсуждениеunclassified

“…Для достижения вы-сокого отношения сигнала к шуму в таких дисках используется подложка из магнитомягкого материала, обладающего небольшим значением коэрцитивной силы [1][2][3][4][5]. Применение в качестве под-ложки магнитных дисков аморфных плёнок, гарантирует не только хорошие магнитомягкие свойства, но и обеспечивает меньшее зна-чение импульсных помех благодаря отсутствию доменных стенок.…”

Section: Introductionunclassified

EXAFS-Investigations of Amorphous Iron-Based Metal Alloy

Karbivska¹,

Artemyuk²,

Karbivskyy³

et al. 2017

Metallofiz. Noveishie Tekhnol.

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“…TM-based MGs, typically the iron-based MGs, are much cheaper than the RE-based MGs due to the greater reserves of TM. However, unfortunately, the iron-based MGs show lower maximum −∆S m (−∆S m peak ) and thus cannot match the requirement of high efficiency for a magnetic refrigerator [12,[14][15][16]].…”

Section: Introductionmentioning

confidence: 99%

Formability and Magnetic Properties of the Binary Nd-Co Amorphous Alloys

Wang

Ding

Xia

2021

Metals

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In this paper, binary Nd-Co alloys with compositional range from Nd72.5Co27.5 to Nd50Co50 were successfully vitrified into glassy state by a melt-spinning method. The glass formability of the metallic glasses (MGs) was studied and the best glass former in the binary Nd-Co alloys was obtained. Magnetic properties of the MGs were measured. The compositional dependence of Curie temperature of the MGs was observed. The mechanism for the spin-glass-like behaviors and high coercivity at low temperature, and their influence on the magnetic entropy change of the MGs, were investigated.

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Thermal, magnetic and magnetocaloric properties of Fe80−M B10Zr9Cu1 (M = Ni, Ta; x= 0, 3, 5) amorphous alloys

Cited by 41 publications

References 36 publications

One-Step Sintering Process for the Production of Magnetocaloric La(Fe,Si)13-Based Composites

One-Step Sintering Process for the Production of Magnetocaloric La(Fe,Si)13-Based Composites

EXAFS-Investigations of Amorphous Iron-Based Metal Alloy

Formability and Magnetic Properties of the Binary Nd-Co Amorphous Alloys

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