Deterioration of the high-temperature oxide superconductor in various ambient environments

Morrish, A. H.; Zhou, Xuezhi; Raudsepp, Mati; Maartense, I.; Eaton, J. A.; Luo, Y. L.

doi:10.1139/p87-119

Cited by 8 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The application of superconducting materials demands its stability against environment. The stability of various superconducting systems, particularly YBa,Cu,O, -x, against water has been studied in detail 11 to 31, and against atmosphere 14, 51, radiation [6, 71, and acids [8] as well. Its stability against acids has been referred for acids of either high or moderate concentration.…”

Section: Introductionmentioning

confidence: 99%

YBa2Cu3O7–x stability against ultradilute HNO3

Bhalla

Kumar

Malik

et al. 1994

Phys. Stat. Sol. (a)

View full text Add to dashboard Cite

Effect of ultradilute HNO3 on the stability of YBa2Cu3O7−xis studied. Uncoated and polymethylmeth acrylate (PMMA) capsulated by plasma polymerization of monomer (MMA) YBCO samples are treated with 50 and 100 μmol HNO3 acid for 6, 12, and 24 h. The stability of high‐Tc cuprates is examined by XRD, TGA, SEM, and measurements of Tc and oxygen content. Results indicate that polymer encapsulation by plasma polymerization is quite effective in retaining the stability of the high‐Tc cuprates.

show abstract

Section: Introductionmentioning

confidence: 99%

YBa2Cu3O7–x stability against ultradilute HNO3

Bhalla

Kumar

Malik

et al. 1994

Phys. Stat. Sol. (a)

View full text Add to dashboard Cite

show abstract

“…According to Yan et al (1987), the degradation process in a humid atmosphere is due to the interaction of HTSC material with water in the presence of CO2 with the formation of Y2BaCuOs, BaCO3 and CuO. However it has been noted by others (Morrish and Zhou 1987;Kishida et al 1988) that under certain conditions humid atmosphere can result in improvement of some superconducting properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of chemical degradation on superconducting properties of the HTSC ceramics

Afanasiadi¹,

Blank²,

Kvichko³

et al. 1991

Bull. Mater. Sci.

View full text Add to dashboard Cite

The effect of humid atmosphere (59 and 86~o) on phase composition and properties of YBa2Cu307 _ ~ powder and ceramics prepared by hot pressing has been studied. It has been found that with increase of water content in the powder to 1-6 mass.~o the superconducting properties of the corresponding ceramics gradually improve; on further increase of the water content the ceramics degrade resulting in a complete loss of superconductivity. The observed phenomenon can be explained by a plastifying effect of water on the powder by hot pressing on the one hand and by a solid-phase reaction of the products of decomposition (1-2-3) at a high temperature annealing, on the other.

show abstract

Improved Corrosion Resistance of Sr Substituted YBa2Cu3O7—δ

Bhalla

Sharma

Trigunayat

1998

phys. stat. sol. (a)

View full text Add to dashboard Cite

The partial substitution of Sr at Ba sites in YBa2—xSrxCu3O7—δ (0 < x < 0.6) has been carried out. The samples are treated with deionized water for 16 h. The influence of water on the corrosion resistance of YBa2—xSrxCu3O7—δ is examined by the changes in Tc, lattice parameters, orthorhombicity and oxygen contents. The results indicate that the corrosion resistance of YBa1.8Sr0.2Cu3O6.882 against treatment with water is enhanced.

show abstract

Deterioration of the high-temperature oxide superconductor in various ambient environments

Abstract: The high-temperature superconductor, YBa2Cu3O7−x, deteriorates when exposed to aqueous and acidic vapors and solutions; these changes are clearly evident in ac susceptibility measurements. Decomposition products are determined by X-ray diffraction.

Cited by 8 publications

References 0 publications

YBa2Cu3O7–x stability against ultradilute HNO3

YBa2Cu3O7–x stability against ultradilute HNO3

Effect of chemical degradation on superconducting properties of the HTSC ceramics

Improved Corrosion Resistance of Sr Substituted YBa2Cu3O7—δ

Contact Info

Product

Resources

About