Structural and superconducting properties of Y(Ba1-K )2Cu3O7-δ ceramics

Dihom, Mustafa Mousa; Shaari, Abdul Halim; Baqiah, Hussein; Al‐Hada, Naif Mohammed; Talib, Zainal Abidin; Chen, Soo Kien; Azis, Raba’ah Syahidah; Kechik, Mohd Mustafa Awang; Pah, Lim Kean; Abd‐Shukor, R.

doi:10.1016/j.ceramint.2017.05.339

Cited by 17 publications

(6 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…YBa 2 Cu 3 O 7−δ (Y-123) powders were prepared by using a thermal treatment method similar to that reported by Dihom et al [7]. Stoichiometric weights of metal nitrates Y(NO 3 ) 3 ·6H 2 O (Alfa Aesar, Haverhill, MA, USA, 99.90%), Ba(NO 3 ) 2 (Alfa Aesar, 99.95%), and Cu(NO 3 ) 2 ·2.5H 2 O (Alfa Aesar, 98%) were dissolved in 300 mL of 2% polyvinyl pyrrolidone (Sigma Aldrich, Steinheim, Germany, PVP) aqueous solution and stirred together at 80 °C for 2 h The solution was dried in the oven for 24 h at 110 °C.…”

Section: Methodsmentioning

confidence: 99%

“…A variety of research has been done focussing on improving the superconducting properties of Y-123 ceramic by altering the techniques with which it can be synthesised and adding impurities that act as artificial pinning centres in the sample. A previous study by Dihom et al gave a remarkable result of T c-onset = 93 K for pure Y-123 prepared using a thermal treatment method in which only metal nitrates, polyvinyl pyrrolidone (PVP) and deionised water were used [7]. The employment of this thermal treatment method in the field of superconductors is still new, but has a lot of potential due to its simple procedure, which makes use of a capping agent during the synthesis process [7,8,9,10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structural and Superconducting Properties of Thermal Treatment-Synthesised Bulk YBa2Cu3O7−δ Superconductor: Effect of Addition of SnO2 Nanoparticles

et al. 2018

Self Cite

View full text Add to dashboard Cite

YBa2Cu3O7−δ (Y-123) bulk superconductors with the addition of (0.0, 0.2, 0.4, 0.6, 0.8, and 1.0 wt.%) SnO2 nanoparticles were synthesised via a thermal treatment method. The influence of SnO2 addition on the superconducting properties by means of critical temperature, Tc, AC susceptibility, phase formation and microstructures, including its elemental composition analysis, were studied. Sharp superconducting transition, ∆Tc, and diamagnetic transition were obtained for all SnO2-added samples. It was observed that sample x = 0.4 with a Y-123 phase percentage of 95.8% gives the highest Tc, smallest ∆Tc, and the sharpest diamagnetic transition in the normalised susceptibility curves. The microstructure also showed an excess of Sn precipitates on the sample’s surface at x = 0.8 and above. As such, the best superconducting properties were observed at x = 0.4 SnO2 addition inside the Y-123 host sample.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Structural and Superconducting Properties of Thermal Treatment-Synthesised Bulk YBa2Cu3O7−δ Superconductor: Effect of Addition of SnO2 Nanoparticles

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…To our knowledge, however, no literature has reported the use of TiO 2 as an addition to YBCO by using thermal treatment as a preparation method. This method was previously found to have the advantages of being simple, inexpensive, and capable of producing fine powders [21][22][23][24]. Thus, the objective of the present study is to investigate the influence of various amounts of TiO 2 nanoparticles (x = 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0 wt.%) on the structure and superconductivity of the Y123 superconductor prepared using the thermal treatment method.…”

Section: Introductionmentioning

confidence: 99%

Orthorhombic YBa2Cu3O7−δ Superconductor with TiO2 Nanoparticle Addition: Crystal Structure, Electric Resistivity, and AC Susceptibility

Barood,

Kechik,

Tee

et al. 2023

Coatings

Self Cite

View full text Add to dashboard Cite

This article reports the effect of a nanoscale addition of TiO2 on the structure and superconducting parameters of the high-temperature superconductor YBa2Cu3O7-δ (Y123). Polycrystalline compounds of Y123 with different percentages of TiO2, x = 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0, were fabricated using the thermal treatment method. An analysis using X-ray diffraction confirmed the formation of Y123 phases for all composite samples. Field-emission scanning electron microscopy (FESEM) analysis revealed the growth of grain size and decrease in porosity, with a sign of partial melting of grains for the samples with TiO2 addition. The magnetic and electric transport properties were investigated using AC susceptibility measurement and the four-probe method, respectively. It was observed that the superconducting transition temperature, Tc-onset, for a pure sample determined by ACS and 4PP was 95.6 K and 95.4 K, respectively. These values were found to decrease with the addition of TiO2, while the superconducting transition (∆Tc) improved with TiO2 addition except for the sample at x = 0.2 wt.%, which showed the broadest transition width. The sharpest superconducting transition (∆Tc) was observed for the sample at x = 1.0 wt.%, indicating that the addition of TiO2 nanoparticles is expected to serve as artificial pinning centres and strengthen the connection among the grains in the Y123 ceramic.

show abstract

“…There are several methods used to synthesize the materials. For example, solid-state (SS) method [13,14] and wet method such as sol-gel [15], co-precipitation (COP) [16][17][18], and thermal treatment [19]. In particular, COP is a highly desirable chemical method used to prepare nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on AC Susceptibility of YBa2Cu3O7−δ Added with BaZrO3 Nanoparticles Prepared via Solid-State and Co-Precipitation Method

et al. 2019

View full text Add to dashboard Cite

Polycrystalline samples of YBa2Cu3O7−δ (Y-123) added with x mol% of BaZrO3 (BZO) nanoparticles (x = 0.0, 2.0, 5.0, and 7.0) were synthesized using co-precipitation (COP) and solid-state (SS) method. X-ray diffraction (XRD) patterns showed the formation of Y-123 and Y-211 as the major and minor phases, respectively. The samples prepared using COP method showed higher weight percentage of Y-123 phase (≤98%) compared to the SS samples (≤93%). A peak corresponding to BZO was also found in the samples added with BZO nanoparticles. The increasing intensity of the BZO peak as the BZO amount increased showed the increasing amount of the unreacted nanoparticles in the samples. Refinement of unit cell lattice parameters indicated that all the samples have an orthorhombic crystal structure and there is no orthorhombic-tetragonal phase transformation. As observed using scanning electron microscopy (SEM), all the samples showed randomly distributed grains with irregular shape. The average grain size for the pure sample prepared using COP method is smaller (0.30 µm) compared with that of the pure SS sample (1.24 µm). Addition of 7.0 mol% BZO led to an increase of average grain size to 0.50 μm and 2.71 μm for the COP and SS samples, respectively, indicating grain growth. AC susceptibility (ACS) measurement showed a decrease in the onset critical temperature, Tc-onset with BZO addition. Comparatively, Tc-onset for the COP samples is higher than that of the SS samples. The value of Josephson’s current, Io increased up to 2.0 mol% BZO addition, above which the Io decreased more drastically for the SS samples. The value of Io is 53.95 μA and 32.08 μA for the 2.0 mol% BZO added SS and COP samples, respectively. The decrease of Io is attributed to the distribution of BZO particles at the grain boundaries as also reflected in the drastic decrease of phase lock-in temperature, Tcj. As a result of smaller average grain size, the presence of more grain boundaries containing insulating BZO particles led to lower Io in the COP samples.

show abstract

Structural and superconducting properties of Y(Ba1-K )2Cu3O7-δ ceramics

Cited by 17 publications

References 34 publications

Structural and Superconducting Properties of Thermal Treatment-Synthesised Bulk YBa2Cu3O7−δ Superconductor: Effect of Addition of SnO2 Nanoparticles

Structural and Superconducting Properties of Thermal Treatment-Synthesised Bulk YBa2Cu3O7−δ Superconductor: Effect of Addition of SnO2 Nanoparticles

Orthorhombic YBa2Cu3O7−δ Superconductor with TiO2 Nanoparticle Addition: Crystal Structure, Electric Resistivity, and AC Susceptibility

Comparative Study on AC Susceptibility of YBa2Cu3O7−δ Added with BaZrO3 Nanoparticles Prepared via Solid-State and Co-Precipitation Method

Contact Info

Product

Resources

About