Breaking point of the harmony between Gd diffused Bi-2223 slabs with diffusion annealing temperature

Aydin, H.; Babanli, Arif; Altintas, S.P.; Asikuzun, E.; Soylu, N.; Öztürk, O.; Doğruer, M.; Terzioğlu, C.

doi:10.1007/s10854-013-1443-4

Cited by 6 publications

(2 citation statements)

References 38 publications

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“…It is said that this statement can be sourced from the very small size of nanoparticles [31][32][33][34]. On the other hand, although the studies associated with the Gd foreign particles to Bi-2223 matrix are available in literature [35][36][37][38][39][40][41][42][43][44], there are not any papers related with the partial replacement of Gd nanoparticle on Bi-site in Bi-2223. In this current work, we analyzed the impact of Gd nanoparticle substitution on Bi-site in Bi-2223 cyrstal structure (not including Pb element) and the solubility limit of trivalent Gd nanoparticles throughout the system.…”

Section: Introductionmentioning

confidence: 99%

Determination of Solubility Characteristic of (Bi, Gd) Substitution in Bi-2223 Inorganic Materials

Zalaoğlu¹

2018

Sakarya University Journal of Science

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In this study, it is examined the significant variations in the superconducting, electrical and structural belongings of Bi-site Gd nanoparticle substituted Bi-2223 crystal. The Bi2.0-xGdxSr2.0Ca2.1Cu3.2Oy (0≤x≤0.3) materials obtained with the standard solid state reaction technique are characterized by dc resistivity (ρ-T), X-ray diffraction (XRD) and transport critical current density (Jc) measurements. Moreover, all experimental findings as regards room temperature resistivity, residual resistivity, critical transition temperatures (𝑇 𝑐 𝑜𝑛𝑠𝑒𝑡 − 𝑇 𝑐 𝑜𝑓𝑓𝑠𝑒𝑡 ), crystallinity, lattice constant parameters, average crystallite size, phase fraction and strength quality of interaction between superconducting grains in the Bi-2223 ceramics declare that the structural, electrical and superconducting characteristics degrade systematically with the ascending of the Gd substitution level in the Bi-2223 samples. Furthermore, the major reason of the reduction trend observed especially in the electrical and superconducting features is in relation with the hole localization problem in the Cu-O2 layers. In this regard, grain boundary weak connections, dislocations and defects in the matrix considerably ascend with the enhancement of Gd nanoparticle substitution level.As seen from XRD measurements, it is clearly determined that there seems to be a decrement in the Bi-2223 phase with the enhancement of Gd inclusions up to the substitution amount of x=0.1. After this critical point, new characteristics peaks of Gd2O3 appear and measurement findings rapidly diminish to the minimum values. This substitution level emphasizes that the solubility limit of Gd is noted to be x=0.1 for Bi-2223. Likewise, the regular decrement observed c-axis length, critical current density and grain size favors the regular retrogression of the superconducting characteristics.

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Section: Introductionmentioning

confidence: 99%

Determination of Solubility Characteristic of (Bi, Gd) Substitution in Bi-2223 Inorganic Materials

Zalaoğlu¹

2018

Sakarya University Journal of Science

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“…Mechanical properties, including hardness, elastic modulus, yield strength, fracture toughness, brittleness index, and ductility are as important as parameters for industrial applications owing to the useful information on the strength and deformation properties of the materials [25]. Micro-hardness measurements which are performed to obtain the information about the mechanical characteristic of the materials are considered as a significant method to investigate structural parameters [26,27].…”

Section: Introductionmentioning

confidence: 99%

Preparation, structural and micromechanical properties of (Al/Mg) co-doped ZnO nanoparticles by sol–gel process

Asikuzun

Öztürk

Arda

et al. 2015

J Mater Sci: Mater Electron

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Zn 0.90 Mg 0.10-x Al x O (x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5 and 0.10) nanoparticles were prepared by using sol-gel technique. The effects of Al and Mg doping on the structural and mechanical properties were investigated by using X-Ray diffraction (XRD), scanning electron microscopy (SEM) and digital micro-hardness tester, respectively. The grain size, a and c lattice parameters and morphology of nanoparticles were characterized by XRD and SEM measurements. The grain sizes of Al/Mg co-doped ZnO nanoparticles were also calculated by Scherrer-Warren equation. a and c lattice parameters are calculated from XRD peaks. According to the results it was observed that the grain sizes increased with increasing the Al doping. c lattice parameter partially decreased with Al doping. The experimental results of hardness measurements were analyzed using Meyer's law, proportional specimen resistance model, elastic/plastic deformation model, and Hays-Kendall (HK) approach. It was observed that HK approach is the most successful model for the micro-hardness analysis of Al/Mg co-doped ZnO materials.

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Significant change in micro mechanical, structural and electrical properties of MgB2 superconducting ceramics depending on argon ambient pressure and annealing duration

Öztürk

Asikuzun

Kaya

2015

J Mater Sci: Mater Electron

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Breaking point of the harmony between Gd diffused Bi-2223 slabs with diffusion annealing temperature

Cited by 6 publications

References 38 publications

Determination of Solubility Characteristic of (Bi, Gd) Substitution in Bi-2223 Inorganic Materials

Determination of Solubility Characteristic of (Bi, Gd) Substitution in Bi-2223 Inorganic Materials

Preparation, structural and micromechanical properties of (Al/Mg) co-doped ZnO nanoparticles by sol–gel process

Significant change in micro mechanical, structural and electrical properties of MgB2 superconducting ceramics depending on argon ambient pressure and annealing duration

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