Magnetic relaxation behavior in the Bi2Sr2Ca2Cu3−Mo O10+ system fabricated by glass-ceramic technique

Kızılaslan, Olcay; Кират, Г.; Aksan, M.A.

doi:10.1016/j.jmmm.2015.02.045

Cited by 10 publications

(6 citation statements)

References 33 publications

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“…The n values higher than 2 indicate the growth of small particles with an increasing nucleation rate. 28 Compared with the primary crystallization rate, the secondary crystallization rate is signicantly slower, and the n values are 1.66-2.02. The primary crystallization is controlled by nucleation, and the growth rate of the crystal changes with time.…”

Section: Non-isothermal Crystallization Kineticsmentioning

confidence: 99%

“…However, it can be seen that the shapes of the M-H curves change for T ¼ 25 K. Especially at high magnetic elds, any hysteresis in the M-H curves was not observed. 28 The critical current density is one of the most important criteria for judging the conductivity of a superconductor. The critical current density directly determines the quality of the superconductor.…”

Section: Superconducting Propertiesmentioning

confidence: 99%

“…The preparation methods of the Bi2212 superconductor mainly include the solid state-reaction method, 11 sol-gel method 12 and glass ceramic (melt quenching) method. 13 Research on the dynamics of the BSCCO superconductors is very important for understanding the nucleation and crystal growth mechanism, which plays a key role in the preparation of high-quality materials.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Superconducting properties and non-isothermal crystallization kinetics of a Bi₂Sr₂CaCu₂O_8+δ (Bi2212) superconductor prepared by the Pechini sol–gel method

et al. 2019

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Section: Non-isothermal Crystallization Kineticsmentioning

confidence: 99%

Section: Superconducting Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Superconducting properties and non-isothermal crystallization kinetics of a Bi₂Sr₂CaCu₂O_8+δ (Bi2212) superconductor prepared by the Pechini sol–gel method

et al. 2019

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“…The J dependence as a function of pinning energy has been determined in previous works [21]. It is well known from collective creep theory that the pinning energy is nonlinearly proportional to J.…”

Section: Magnetic Relaxation Investigationsmentioning

confidence: 95%

“…HTSs doping using different types of impurities (magnetic or nonmagnetic), as well as various fabrication and measurement conditions, have often been utilized to tune up their pinning properties. These studies have shown that grains connectivity and alignment influence not only J c , but also the pinning and, in turn, the materials relaxation behavior [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of magnetic relaxation behavior by texturing in Bi-2212 superconducting rods

Ozabaci

Kızılaslan

Кират

et al. 2016

Ceramics International

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Time decay of magnetization, known as magnetic relaxation, is crucial for both fundamental and applied point of view in bulk high temperature superconductors (HTS) by setting the limits to the HTS devices stability. Melt-processed Bi 2 Sr 2 Ca 1 Cu 2-x Ga x O 8+δ rods (Bi-2212, x = 0, 0.1) were used to study the effect of both grain alignment and substitution on the samples critical current density, relaxation and pinning behavior. The magnetic field has been applied both perpendicular and parallel to the rods growth axis to determine the effect of grain alignment. It has been found that Ga substitution reduces grains orientation and sizes leading to lower magnetic properties. The peaks of the curves, which indicate the temperature dependence of the samples magnetic relaxation rate (S), have been observed in the 7-35 K temperature range. Characteristic pinning energy (U e /k B ) of samples was determined using the formalism developed by Maley. The change of pinning energy as a function of magnetization has been found to be exponential between 3 and 60 K, which is in agreement with the collective creep theory.

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Preparation of Bi2Sr2CaCu2O8+δ(Bi2212) superconductor by Pechini sol–gel method: thermal decomposition and phase formation kinetics of the precursors

Zhao

Wang

et al. 2020

J Mater Sci: Mater Electron

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Bi2212 high-temperature superconductors were prepared using Pechini sol-gel method, and the thermal decomposition process under air condition was obtained by synchronous thermal analyzer. The synthesis mechanisms of Bi2212 phase were determined by the combination of universal integral, differential and multi-rate scanning methods. The crystallization behavior, morphology, and superconductivity of the samples were characterized and analyzed by XRD, FESEM, PPMS, and SQUID, respectively. The results exhibited that the thermal decomposition reactions of the precursors were divided into three stages. The kinetics of Bi2212 synthesis reaction followed the mechanism mode of random nucleation and subsequent growth (n = 3) during the third stage which were used to guide the heat treatment of the final products. The average activation energy and the pre-finger factor of the synthesis reaction were 226 kJ/mol and 1.84 9 10 11 /min, respectively. Finally, the Bi2212 superconductor with high purity and acceptable performance with the T c, onset of 77.1 K, T c, zero of 63.5 K, and the J c of 5.94 9 10 4 A/cm 2 , respectively, were prepared with shorter sintering time.

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Magnetic relaxation behavior in the Bi2Sr2Ca2Cu3−Mo O10+ system fabricated by glass-ceramic technique

Cited by 10 publications

References 33 publications

Superconducting properties and non-isothermal crystallization kinetics of a Bi₂Sr₂CaCu₂O_8+δ (Bi2212) superconductor prepared by the Pechini sol–gel method

Superconducting properties and non-isothermal crystallization kinetics of a Bi₂Sr₂CaCu₂O_8+δ (Bi2212) superconductor prepared by the Pechini sol–gel method

Enhancement of magnetic relaxation behavior by texturing in Bi-2212 superconducting rods

Preparation of Bi2Sr2CaCu2O8+δ(Bi2212) superconductor by Pechini sol–gel method: thermal decomposition and phase formation kinetics of the precursors

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Magnetic relaxation behavior in the Bi2Sr2Ca2Cu3−Mo O10+ system fabricated by glass-ceramic technique

Cited by 10 publications

References 33 publications

Superconducting properties and non-isothermal crystallization kinetics of a Bi2Sr2CaCu2O8+δ (Bi2212) superconductor prepared by the Pechini sol–gel method

Superconducting properties and non-isothermal crystallization kinetics of a Bi2Sr2CaCu2O8+δ (Bi2212) superconductor prepared by the Pechini sol–gel method

Enhancement of magnetic relaxation behavior by texturing in Bi-2212 superconducting rods

Preparation of Bi2Sr2CaCu2O8+δ(Bi2212) superconductor by Pechini sol–gel method: thermal decomposition and phase formation kinetics of the precursors

Contact Info

Product

Resources

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Superconducting properties and non-isothermal crystallization kinetics of a Bi₂Sr₂CaCu₂O_8+δ (Bi2212) superconductor prepared by the Pechini sol–gel method

Superconducting properties and non-isothermal crystallization kinetics of a Bi₂Sr₂CaCu₂O_8+δ (Bi2212) superconductor prepared by the Pechini sol–gel method