Physical Properties of 
                $$(\hbox {BaSnO}_{3})_\mathrm{x}/\hbox {Cu}_{0.5}\hbox {Tl}_{0.5}\hbox {Ba}_{2}\hbox {Ca}_{2}\hbox {Cu}_{3}\hbox {O}_{10{-}\delta }$$
                
                    
                                    
                        
                            
                                
                                    (
                                    
                                        BaSnO
                                        3

Srour, A.; Awad, R.; Malaeb, Walid; Barakat, M. M.

doi:10.1007/s10909-017-1806-y

Cited by 11 publications

(6 citation statements)

References 34 publications

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“…The prepared samples were characterized using X-ray Powder diffraction (XRD) and scanning electron microscope (SEM) in our previous work [8]. As a results from these characterizations, the BaSnO 3 nanoparticles set at the grain boundaries (no variation of lattice parameters was observed), and the addition of low content of nanoparticles enhanced the formation of (Cu 0.5 Tl 0.5 )-1223 phase [9].…”

Section: Resultsmentioning

confidence: 99%

“…The prepared superconducting samples added by x BaSnO 3 nanoparticles (prepared by chemical Coprecipitation method) with different concentrations (x = 0.00, 0.25, 0.50, 0.75 and 1.50 wt.%) using solidstate reaction technique at ambient pressure, reported in our previous work [8]. DC electrical resistivity was used to characterize the superconducting properties of the samples using standard four-probe DC technique, in the temperature range (77 to 300) K. TEP of the prepared superconductor samples was measured using the standard differential technique in the temperature range from 80 to 280 K. The sample, of dimensions 1.5 × 0.3 × 0.2 cm 3 , was clamped between two copper plates and each one supplied with a metal resistor heater.…”

Section: Experimental and Investigation Techniquesmentioning

confidence: 99%

“…The values of T c for all samples are listed in table 1. The enhancement in T c can be discussed according to the improvement in the volume fraction and inter grain connectivity for x = 0.25 wt.%[8]. The hole-carriers concentration per Cu ion (P) is listed in table 1, calculated through the following relation[10] …”

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confidence: 99%

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Thermoelectric power of (Cu_0.5Tl_0.5)-1223 superconducting phase added with BaSnO3 nanoparticles

Srour

Malaeb

Marhaba

et al. 2017

J. Phys.: Conf. Ser.

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In this study, we report the thermoelectric power (TEP) measurements of Cu 0.5 Tl 0.5 Ba 2 Ca 2 Cu 3 O 10-δ added with BaSnO 3 nanoparticles. BaSnO 3 nanoparticles were prepared by chemical co-precipitation method, while (BaSnO 3) x /(CuT1)-1223 superconducting samples with 0.00 ≤ x ≤ 1.50 wt% were prepared using the solid-state reaction method. The standard four-probe technique was applied to measure DC electrical resistivity in the temperature range from 300 to 77 K. Superconducting transition temperature (T c) increases up to 117.5 for x = 0.25 wt.% and then it decreases with further x addition. The TEP coefficient was measured as a function of temperature in a wide temperature range from ~77 K (liquid nitrogen temperature) up to 280 K using a standard differential technique. The behavior of the obtained TEP coefficient is suit with high-T c copper-oxide superconductors. The results were investigated according to two-band model with an extra linear term. Several parameters such as the pseudo-gap temperature (T*), Fermi energy (E F) and Fermi temperature (T F) values were calculated and discussed in terms of nanoparticles BaSnO 3 addition.

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Section: Resultsmentioning

confidence: 99%

Section: Experimental and Investigation Techniquesmentioning

confidence: 99%

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Thermoelectric power of (Cu_0.5Tl_0.5)-1223 superconducting phase added with BaSnO3 nanoparticles

Srour

Malaeb

Marhaba

et al. 2017

J. Phys.: Conf. Ser.

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“…The preparation of the Cu 0.5 Tl 0.5 Ba 2 Ca 2 Cu 3 O 10−δ superconductor phase added with different concentration additions of BaSnO 3 nanoparticles (x=0.00, 0.25, 0.50, 0.75, 1.00 and 1.50 wt.%) were synthesized using a solid-state reaction technique and the nanoparticles were prepared by a chemical co-precipitation method, reported in our previous work [19].…”

Section: Experimental Techniquesmentioning

confidence: 99%

“…The characterization and investigation of the prepared samples were carried out using x-ray powder diffraction (XRD), a scanning electron microscope (SEM), energy depressive x-ray (EDX), electrical resistivity and I-V measurements as reported in our previous work [19]. The XRD results showed that all the samples belong to the (Cu 0.5 Tl 0.5 )-1223 tetragonal phase with a small amount of Ba-Cu-O non-superconducting impurities.…”

Section: Samples Characterizationmentioning

confidence: 99%

Mechanical properties of the (BaSnO₃)x/Cu_0.5Tl_0.5Ba₂Ca₂Cu₃O_10−δsuperconductor phase

et al. 2017

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In this study, we carried out the Vickers microhardness for Cu0.5Tl0.5Ba2Ca2Cu3O10−δ, (Cu0.5Tl0.5)-1223 superconducting phase added with BaSnO3 nanoparticles. BaSnO3 nanoparticles were prepared by the co-precipitation technique, while the superconductor samples of type (BaSnO3)xCu0.5Tl0.5Ba2Ca2Cu3O10−δ, with 0.00 ≤ x ≤ 1.00 wt.%, were prepared by the conventional solid-state reaction method. Vickers microhardness (Hv) was measured at room temperature and was computed by taking the average of three hits at different locations on the specimen surface. The measurements were performed as a function of the applied load (F = 0.98–9.80 N) and the dwell time (t = 10–59 s). The Hv values were found to be strongly dependent on both the BaSnO3 content and the dwell time. Furthermore, the load independent Vickers microhardness was analyzed using Meyer’s law and different models such as the Hays–Kendall approach (HK), the elastic/plastic deformation model (EPD), the proportional specimen resistance model (PSR) and the modified proportional specimen resistance model (MPSR). The PSR model is found to be the most adequate model in explaining the load independent microhardness for the (BaSnO3)x/(Cu0.5Tl0.5)-1223 superconductor phase. Some important mechanical parameters such as Young’s modulus (E), yield strength (Y), fracture toughness (K) and brittleness index (B) were calculated as a function of x. It was found that the addition of proper concentrations of BaSnO3 nanoparticles enhanced the mechanical properties of the prepared samples. The time-dependent microhardness was investigated according to indentation creep experiments showing that the operative creep mechanisms in the studied samples were diffusion creeps at low loads followed by grain boundary sliding as well as dislocation creeps for higher loads.

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Preparation and physical properties of (Bi1.8Pb0.4)Sr2Ca2Cu3O10+δ superconductors impregnated with mangano(II)undecatungstosilicate nanomaterials

2019

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Physical Properties of $$(\hbox {BaSnO}_{3})_\mathrm{x}/\hbox {Cu}_{0.5}\hbox {Tl}_{0.5}\hbox {Ba}_{2}\hbox {Ca}_{2}\hbox {Cu}_{3}\hbox {O}_{10{-}\delta }$$ ( BaSnO 3

Cited by 11 publications

References 34 publications

Thermoelectric power of (Cu_0.5Tl_0.5)-1223 superconducting phase added with BaSnO3 nanoparticles

Thermoelectric power of (Cu_0.5Tl_0.5)-1223 superconducting phase added with BaSnO3 nanoparticles

Mechanical properties of the (BaSnO₃)x/Cu_0.5Tl_0.5Ba₂Ca₂Cu₃O_10−δsuperconductor phase

Preparation and physical properties of (Bi1.8Pb0.4)Sr2Ca2Cu3O10+δ superconductors impregnated with mangano(II)undecatungstosilicate nanomaterials

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Physical Properties of $$(\hbox {BaSnO}_{3})_\mathrm{x}/\hbox {Cu}_{0.5}\hbox {Tl}_{0.5}\hbox {Ba}_{2}\hbox {Ca}_{2}\hbox {Cu}_{3}\hbox {O}_{10{-}\delta }$$ ( BaSnO 3

Cited by 11 publications

References 34 publications

Thermoelectric power of (Cu0.5Tl0.5)-1223 superconducting phase added with BaSnO3 nanoparticles

Thermoelectric power of (Cu0.5Tl0.5)-1223 superconducting phase added with BaSnO3 nanoparticles

Mechanical properties of the (BaSnO3)x/Cu0.5Tl0.5Ba2Ca2Cu3O10−δsuperconductor phase

Preparation and physical properties of (Bi1.8Pb0.4)Sr2Ca2Cu3O10+δ superconductors impregnated with mangano(II)undecatungstosilicate nanomaterials

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Product

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Thermoelectric power of (Cu_0.5Tl_0.5)-1223 superconducting phase added with BaSnO3 nanoparticles

Thermoelectric power of (Cu_0.5Tl_0.5)-1223 superconducting phase added with BaSnO3 nanoparticles

Mechanical properties of the (BaSnO₃)x/Cu_0.5Tl_0.5Ba₂Ca₂Cu₃O_10−δsuperconductor phase