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Novel High-Rate Performance of Dual Carbon-Coated Li3V2(PO4)(3) Materials Used in an Aqueous Electrolyte SCIE
期刊论文 | 2019 , 58 (2) , 790-797 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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Lithium vanadium phosphate (Li3V2(PO4)(3)) coated with dual carbon-citric acid and polyvinylpyrrolidone (PVP), are used as the cathode materials for the novel aqueous rechargeable lithium-ion batteries (ARLBs). Li+ diffusion coefficient of Li3V2(PO4)(3)/C (LVP/C) is first calculated and reported for the ARLBs. The primary discharge specific capacities of LVP/C reaches 125.8 mA h g(-1) (1 C), 122.7 mA h g(-1) (2 C), 113.6 mA h g(-1) (5 C) and 101.6 mA h g(-1) (10 C), respectively. Particularly, at 50 C (equivalent to an ampere density of 6.6 A g(-1)), the capacity has almost no decrease after 300 cycles. At a novel 100 C (13.2 A g(-1)), 94.9% of capacity retention is achieved after 1000 cycles, and the Coulombic efficiency approximates equal to 100%. Lithium vanadium phosphate with a NASCION structure is regarded as the great promising candidate material for power batteries owing to its high safety, superior structural stability, and excellent electrochemical performance.

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GB/T 7714 Ding, Meng , Zhao, Mingshu , Gong, Huilin et al. Novel High-Rate Performance of Dual Carbon-Coated Li3V2(PO4)(3) Materials Used in an Aqueous Electrolyte [J]. | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2019 , 58 (2) : 790-797 .
MLA Ding, Meng et al. "Novel High-Rate Performance of Dual Carbon-Coated Li3V2(PO4)(3) Materials Used in an Aqueous Electrolyte" . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 58 . 2 (2019) : 790-797 .
APA Ding, Meng , Zhao, Mingshu , Gong, Huilin , Zheng, Qingyang , Song, Xiaoping . Novel High-Rate Performance of Dual Carbon-Coated Li3V2(PO4)(3) Materials Used in an Aqueous Electrolyte . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2019 , 58 (2) , 790-797 .
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Facile Synthesis of Molybdenum Disulfide/Carbon Nanocomposites in Polyacrylic Acid Hydrogel as Anode for Lithium-Ion Batteries SCIE
期刊论文 | 2019 , 7 (3) | ENERGY TECHNOLOGY
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Molybdenum disulfide (MoS2)/carbon nanocomposites are grown in a polyacrylic acid (PAA) hydrogel system via a facile hydrothermal process and carbonization of PAA by heat treatment under an argon atmosphere. The content of the MoS2 electrode material can be controlled effectively by adjusting the immersing time of the MoS2 precursor with PAA hydrogel. The MoS2/carbon nanocomposites containing MoS2 nanosheets are uniformly embedded in a 3D interconnected network carbon matrix. The unique network structure as a nano/microreactor to produce MoS2 nanosheets contributes to suppressing the aggregation of MoS2 nanosheets and improving the conductivity of nanocomposites. The MoS2/carbon nanocomposites demonstrate a good cycling stability and superior rate performance.

Keyword :

lithium ion batteries molybdenum disulfide polyacrylic acid (PAA) hydrogels nanocomposites anodes

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GB/T 7714 Zong, Jingui , Wang, Fei , Long, Yixuan et al. Facile Synthesis of Molybdenum Disulfide/Carbon Nanocomposites in Polyacrylic Acid Hydrogel as Anode for Lithium-Ion Batteries [J]. | ENERGY TECHNOLOGY , 2019 , 7 (3) .
MLA Zong, Jingui et al. "Facile Synthesis of Molybdenum Disulfide/Carbon Nanocomposites in Polyacrylic Acid Hydrogel as Anode for Lithium-Ion Batteries" . | ENERGY TECHNOLOGY 7 . 3 (2019) .
APA Zong, Jingui , Wang, Fei , Long, Yixuan , Zhao, Mingshu , Yang, Sen , Song, Xiaoping . Facile Synthesis of Molybdenum Disulfide/Carbon Nanocomposites in Polyacrylic Acid Hydrogel as Anode for Lithium-Ion Batteries . | ENERGY TECHNOLOGY , 2019 , 7 (3) .
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Selective synthesis of CuO/C nanocomposites and porous CuO based on polyacrylic acid hydrogel system as high-performance anode for lithium-ion batteries Scopus SCIE
期刊论文 | 2019 , 518 , 1-7 | Chemical Physics
WoS CC Cited Count: 2 SCOPUS Cited Count: 2
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© 2018 Elsevier B.V. CuO/C nanocomposites and porous CuO were selectively synthesized by a facile, low-cost and large-scale synthesis method based on polyacrylic acid hydrogel system. As the anode materials for lithium-ion batteries, the capacity of porous CuO is higher than CuO/C nanocomposites, while gradually decreases after 40 cycles due to the lack of supporting matrix. In CuO/C nanocomposites, CuO nanoparticles are uniformly embedded in the three-dimensional carbon matrix, which can buffer the large volume change, suppress the particle pulverization, and prevent the particle agglomeration of CuO nanoparticles. The capacity of CuO/C nanocomposites maintains at about 690 mAh g−1 till 200th cycle.

Keyword :

Anodes Copper oxide Hydrogel Lithium ion batteries Nanocomposites

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GB/T 7714 Wang, Fei , Cheng, Danfei , Cheng, Tingting et al. Selective synthesis of CuO/C nanocomposites and porous CuO based on polyacrylic acid hydrogel system as high-performance anode for lithium-ion batteries [J]. | Chemical Physics , 2019 , 518 : 1-7 .
MLA Wang, Fei et al. "Selective synthesis of CuO/C nanocomposites and porous CuO based on polyacrylic acid hydrogel system as high-performance anode for lithium-ion batteries" . | Chemical Physics 518 (2019) : 1-7 .
APA Wang, Fei , Cheng, Danfei , Cheng, Tingting , Zong, Jingui , Long, Yixuan , Zhao, Mingshu et al. Selective synthesis of CuO/C nanocomposites and porous CuO based on polyacrylic acid hydrogel system as high-performance anode for lithium-ion batteries . | Chemical Physics , 2019 , 518 , 1-7 .
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Spin cluster size dependence of exchange bias effect in Mn50Ni40Ga10 Heusler alloys SCIE
期刊论文 | 2019 , 107 , 10-14 | INTERMETALLICS
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The technique based on exchange bias effect is believed to play a significant role in next-generation spin-involved magnetic devices. However, 60 years after the discovery of the exchange bias, it remains unclear about origin and influencing factors of exchange bias. In this study, a giant exchange bias field of 5132 Oe was introduced in Mn50Ni40Ga10 Heusler alloys at 2 K with a cooling field of 10 kOe. Magnetic measurements showed that the giant exchange bias effect at lower temperature originates from the coupling between super spin glass and antiferromagnetic matrix. Different from previous reports, we elaborated on the issue of cooling field dependence from the perspective of size effect. The size effect was further demonstrated by calculating and comparing the relaxation time of super spin glass under different cooling fields. Although the relationship between particles sizes and relaxation time yet requires further validation, the current proposal can be applied to most exchange bias in Hensler systems.

Keyword :

Cooling field Size effect Hensler alloys Spin glass Exchange bias

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GB/T 7714 Zhang, Yin , Li, Jianing , Tian, Fanghua et al. Spin cluster size dependence of exchange bias effect in Mn50Ni40Ga10 Heusler alloys [J]. | INTERMETALLICS , 2019 , 107 : 10-14 .
MLA Zhang, Yin et al. "Spin cluster size dependence of exchange bias effect in Mn50Ni40Ga10 Heusler alloys" . | INTERMETALLICS 107 (2019) : 10-14 .
APA Zhang, Yin , Li, Jianing , Tian, Fanghua , Cao, Kaiyan , Wang, Dingchen , Ren, Shuai et al. Spin cluster size dependence of exchange bias effect in Mn50Ni40Ga10 Heusler alloys . | INTERMETALLICS , 2019 , 107 , 10-14 .
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Zero-thermal-hysteresis magnetocaloric effect induced by magnetic transition at a morphotropic phase boundary in Heusler Ni50Mn36Sb14-xInx alloys SCIE PubMed Scopus
期刊论文 | 2018 , 20 (27) , 18484-18490 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS
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With the development of magnetic refrigerant technology, magnetic substances with a large magnetocaloric effect (MCE) and nearly zero thermal hysteresis are desired. Although Ni-Mn based Heusler alloys have been found to produce large MCEs and have attracted increasing attention recently, the occurrence of thermal hysteresis accompanying MCE due to the nature of first-order phase transition limits its applications with magnetic refrigeration. Up to now, an effective theory or method to eliminate this thermal hysteresis is still lacking. Here, we propose to utilize the feature of magnetic transition at the morphotropic phase boundary (MPB) to eliminate thermal hysteresis and thus design a MPB-involved phase diagram in Heusler alloys of Ni50Mn36Sb14-xInx (x = 0-14). As theoretically expected, the magnetic transition at MPB really yields a MCE with a negligible thermal hysteresis (similar to 0 K) and the refrigerant capacity arrives at a maximum value of 108.2 J kg(-1) at the composition of x = 9. Our findings provide an effective way to design large MCE materials with zero thermal hysteresis.

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GB/T 7714 Zhang, Yin , Wang, Jieqiong , Ke, Xiaoqin et al. Zero-thermal-hysteresis magnetocaloric effect induced by magnetic transition at a morphotropic phase boundary in Heusler Ni50Mn36Sb14-xInx alloys [J]. | PHYSICAL CHEMISTRY CHEMICAL PHYSICS , 2018 , 20 (27) : 18484-18490 .
MLA Zhang, Yin et al. "Zero-thermal-hysteresis magnetocaloric effect induced by magnetic transition at a morphotropic phase boundary in Heusler Ni50Mn36Sb14-xInx alloys" . | PHYSICAL CHEMISTRY CHEMICAL PHYSICS 20 . 27 (2018) : 18484-18490 .
APA Zhang, Yin , Wang, Jieqiong , Ke, Xiaoqin , Chang, Tieyan , Tian, Fanghua , Zhou, Chao et al. Zero-thermal-hysteresis magnetocaloric effect induced by magnetic transition at a morphotropic phase boundary in Heusler Ni50Mn36Sb14-xInx alloys . | PHYSICAL CHEMISTRY CHEMICAL PHYSICS , 2018 , 20 (27) , 18484-18490 .
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Superior cycling stability of a crystalline/amorphous Co3S4 core-shell heterostructure for aqueous hybrid supercapacitors EI Scopus SCIE
期刊论文 | 2018 , 6 (43) , 21350-21359 | Journal of Materials Chemistry A
WoS CC Cited Count: 1 SCOPUS Cited Count: 1
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© The Royal Society of Chemistry. In this article, a novel crystalline/amorphous Co3S4 core-shell heterostructure supported on nickel foam is fabricated through a facile method. Due to the unique structure of the crystalline Co3S4 core that provides stable mechanical support and surface-active sites and the amorphous shell that facilitates diffusion and reaction of electrolyte ions, the obtained crystalline/amorphous Co3S4 electrode shows a superior pseudocapacitive performance of 2.65 F cm−2 (2038.5 F g−1) at a current density of 5 mA cm−2 and even 1.81 F cm−2 (1392.3 F g−1) at 50 mA cm−2. In addition, the Co3S4//AC exhibits a relatively high energy density of 54.78 W h kg−1 at a power density of 400.02 W kg−1 and excellent cycling performance (about 94.8% capacitance retention over 32 500 cycles). The kinetic analysis reveals a diffusion controlled faradaic characteristic of Co3S4 (73.21% diffusion-controlled contribution). Moreover, the fabrication process presented in this work is facile, cost-effective, and environmentally benign, offering a feasible solution for fabricating next-generation high-performance energy storage devices.

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GB/T 7714 Liang, Miaomiao , Zhao, Mingshu , Wang, Haiyang et al. Superior cycling stability of a crystalline/amorphous Co3S4 core-shell heterostructure for aqueous hybrid supercapacitors [J]. | Journal of Materials Chemistry A , 2018 , 6 (43) : 21350-21359 .
MLA Liang, Miaomiao et al. "Superior cycling stability of a crystalline/amorphous Co3S4 core-shell heterostructure for aqueous hybrid supercapacitors" . | Journal of Materials Chemistry A 6 . 43 (2018) : 21350-21359 .
APA Liang, Miaomiao , Zhao, Mingshu , Wang, Haiyang , Zheng, Qingyang , Song, Xiaoping . Superior cycling stability of a crystalline/amorphous Co3S4 core-shell heterostructure for aqueous hybrid supercapacitors . | Journal of Materials Chemistry A , 2018 , 6 (43) , 21350-21359 .
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Excellent cycling stabilities of a novel calliandra-like Co3O4acted as anode materials for the lithium-ion battery EI Scopus CSSCI-E SCIE
期刊论文 | 2018 , 17 , 311-317 | Journal of Energy Storage
WoS CC Cited Count: 3 SCOPUS Cited Count: 3
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Herein, a hierarchical calliandra-like Co3O4is successfully synthesized via a simple carbon sphere and hydroxypropyl cellulose assisted hydrothermal process. X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) characteristics results indicate that the hierarchical Co3O4spheres are 3–6 μm in diameter and belong to spinel structure. Each Co3O4sphere is consisted of radially oriented nanocystals accumulated nanorods building blocks. The formation mechanism for this structure maybe ascribed to the collaboration effect of carbon sphere and hydroxypropyl cellulose, which act as hard template and dispersion stabilizer respectively. The calliandra-like Co3O4particles exhibit satisfied electrochemical performance with high specific capacities and good rate capabilities, especially superior cycling stability when used as anode active materials in the lithium-ion batteries, which release an initial discharge capacity of 1139.42 mA h g−1at 200 mA g−1, and maintain a reversible capacity of 734.64 mA h g−1after 500 cycles. © 2018 Elsevier Ltd

Keyword :

Calliandra-like Co3O4 Cycling stability Growth mechanisms Hydroxypropyl cellulose Lithium-ion battery anodes

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GB/T 7714 Liang, Miaomiao , Zhao, Mingshu , Wang, Haiyang et al. Excellent cycling stabilities of a novel calliandra-like Co3O4acted as anode materials for the lithium-ion battery [J]. | Journal of Energy Storage , 2018 , 17 : 311-317 .
MLA Liang, Miaomiao et al. "Excellent cycling stabilities of a novel calliandra-like Co3O4acted as anode materials for the lithium-ion battery" . | Journal of Energy Storage 17 (2018) : 311-317 .
APA Liang, Miaomiao , Zhao, Mingshu , Wang, Haiyang , Wang, Fei , Song, Xiaoping . Excellent cycling stabilities of a novel calliandra-like Co3O4acted as anode materials for the lithium-ion battery . | Journal of Energy Storage , 2018 , 17 , 311-317 .
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Enhanced multiferroic properties of lead-free (1-x)GaFeO3-(x)Co0.5Zn0.5Fe2O4 composites EI Scopus SCIE
期刊论文 | 2018 , 124 (15) | Journal of Applied Physics
WoS CC Cited Count: 2
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Multiferroic composites of (1-x)GaFeO3-(x)Co0.5Zn0.5Fe2O4 with x = 0.0, 0.1, 0.2, and 1 were prepared using a conventional solid state reaction method. The X-ray diffraction patterns confirmed that the composites consisted of cubic spinel Co0.5Zn0.5Fe2O4 and orthorhombic GaFeO3 phases. The coexistence of both magnetic and ferroelectric orderings at ambient temperature was confirmed by measuring M-H and P-E loops. The inclusion of Co0.5Zn0.5Fe2O4 enhanced magnetization and dielectric constant, as well as improved the ferroelectric properties of GaFeO3. The leakage current (9.33 × 10-8A/cm2) of composite (x = 0.20) is found to be much lower as compared to pure GaFeO3. The value of saturation magnetization increased to 30.6 emu/g at 300 K. This large enhancement of magnetization, as well as the presence of ferroelectricity, is promising for enabling future magnetoelectric applications. © 2018 Author(s).

Keyword :

Co0.5Zn0.5Fe2O4 Ferroelectric ordering Ferroelectric property Lead-Free Multiferroic composites Multiferroic properties Solid state reaction method

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GB/T 7714 Ghani, Awais , Yang, Sen , Rajput, S.S. et al. Enhanced multiferroic properties of lead-free (1-x)GaFeO3-(x)Co0.5Zn0.5Fe2O4 composites [J]. | Journal of Applied Physics , 2018 , 124 (15) .
MLA Ghani, Awais et al. "Enhanced multiferroic properties of lead-free (1-x)GaFeO3-(x)Co0.5Zn0.5Fe2O4 composites" . | Journal of Applied Physics 124 . 15 (2018) .
APA Ghani, Awais , Yang, Sen , Rajput, S.S. , Ahmed, S. , Murtaza, Adil , Zhou, Chao et al. Enhanced multiferroic properties of lead-free (1-x)GaFeO3-(x)Co0.5Zn0.5Fe2O4 composites . | Journal of Applied Physics , 2018 , 124 (15) .
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Temperature dependent magnetization and coercivity in morphotropic phase boundary involved ferromagnetic Tb1-xGdxFe2 system EI SCIE Scopus
期刊论文 | 2018 , 217 , 278-284 | MATERIALS CHEMISTRY AND PHYSICS
WoS CC Cited Count: 1 SCOPUS Cited Count: 1
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Morphotropic phase boundary (MPB) refers to a transition region separating two ferromagnetic phases having different crystallographic symmetries in a ferromagnetic system. In the present study, magnetization and coercivity of the MPB involved ferromagnetic Tb1-xGdxFe2 system have been measured at selected temperatures between 5 and 300 K. The saturation magnetization M-S of the Tb1-xGdxFe2 system varies with Gd concentration exhibiting minimum value at MPB composition x = 0.9 at all temperatures. Calculated magnetic moments of rare earth (RE) elements are lower than those of their corresponding free ions, which can be attributed to the crystal field effect (CFE). The magnetic anisotropy K decreases with increasing Gd concentration and anisotropy compensation has been observed at an MPB composition with x = 0.9. The coercivity H-C of the Tb1-xGdxFe2 system was found to decrease with increasing the Gd concentration. Furthermore, H-C exhibits a large value at low temperature and decays exponentially with increasing temperature. The observed temperature dependence of the H-C can be explained by domain wall pinning, as a high K of rare earth elements (RE) at low temperatures causes a prominent pinning effect at 5 K. Our results shed light on magnetization, magnetic anisotropy and coercivity mechanisms in MPB involved ferromagnetic systems and provides an effective way to design novel functional materials.

Keyword :

Domain wall pinning Magnetic anisotropy Morphotropic phase boundary Crystal field effect Intrinsic coercivity

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GB/T 7714 Murtaza, Adil , Yang, Sen , Khan, Muhammad Tahir et al. Temperature dependent magnetization and coercivity in morphotropic phase boundary involved ferromagnetic Tb1-xGdxFe2 system [J]. | MATERIALS CHEMISTRY AND PHYSICS , 2018 , 217 : 278-284 .
MLA Murtaza, Adil et al. "Temperature dependent magnetization and coercivity in morphotropic phase boundary involved ferromagnetic Tb1-xGdxFe2 system" . | MATERIALS CHEMISTRY AND PHYSICS 217 (2018) : 278-284 .
APA Murtaza, Adil , Yang, Sen , Khan, Muhammad Tahir , Ghani, Awais , Zhou, Chao , Song, Xiaoping . Temperature dependent magnetization and coercivity in morphotropic phase boundary involved ferromagnetic Tb1-xGdxFe2 system . | MATERIALS CHEMISTRY AND PHYSICS , 2018 , 217 , 278-284 .
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Premartensite serving as an intermediary state between strain glass and martensite in ferromagnetic Ni-Fe-Mn-Ga EI SCIE Scopus
期刊论文 | 2018 , 152 , 102-109 | MATERIALS & DESIGN
WoS CC Cited Count: 2 SCOPUS Cited Count: 1
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Previous investigations indicate that the two intrinsically different states, i.e, strain glass and premartensite in ferromagnetic Ni-Mn-Ga based system share some similarities in their transforming properties, such as nano domain structure, elastic anomaly and temperature-induced transition to martensite. This indicates that the two states are possibly related with each other. However, the relationship between them is unclear so far. To explore this problem, we investigated the transforming behaviors of the ferromagnetic Ni-55,,FexMn120Ga25 (x 4-14) sysLem.11. was found that the transforming route of this system changes greatly with increasing Fe conlent. We also observed that the strain glass transforms info premartensilic stale upon cooling, which is called spontaneous strain glass to premartensite transition. The local structure of strain glass is similar to thaL of premartensite. Moreover, a strain glass phase diagram of the Ni-Fe-Mn-Ga system was constructed, which reveals that the premartensite serves as an intermediary slate between strain glass and martensite. With increasing Fe doping, the system changes from the marlensile (long-range-ordered sfrain stale with large spontaneous sir-din) into Lhe premartensite (long-range ordered strain stale with small spontaneous strain) al first, and then the strain glass (short-range-ordered strain stale with small local strain) is derived from pi-mai-tensile by further doping Fe. (C) 2018 Elsevier Ltd. All rights reserved.

Keyword :

Martensitic transformation Premartensite Strain glass Ferromagnetic shape memory alloy Martensite

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GB/T 7714 Wang, Yu , Huang, Chonghui , Wu, Haijun et al. Premartensite serving as an intermediary state between strain glass and martensite in ferromagnetic Ni-Fe-Mn-Ga [J]. | MATERIALS & DESIGN , 2018 , 152 : 102-109 .
MLA Wang, Yu et al. "Premartensite serving as an intermediary state between strain glass and martensite in ferromagnetic Ni-Fe-Mn-Ga" . | MATERIALS & DESIGN 152 (2018) : 102-109 .
APA Wang, Yu , Huang, Chonghui , Wu, Haijun , Gao, Jinghui , Yang, Sen , Song, Xiaoping et al. Premartensite serving as an intermediary state between strain glass and martensite in ferromagnetic Ni-Fe-Mn-Ga . | MATERIALS & DESIGN , 2018 , 152 , 102-109 .
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