The exact mole ratio of oxygen is not determined on a lot by lot basis. This product is prepared by molten oxide process. The oxygen mole ratio is expected to range from 6.7-9.8. Historical records have ranged from 6.5 - 7, however, this is not a specification. While some superconducting properties should be present in the material as it is produced, many applications may call for an annealing step before use. Naturally, the oxygen content of the material may vary with heat treatments over ca 300°C, due to the ability of the composite to release/absorb oxygen at elevated temperatures.
328626
Yttrium barium copper oxide
powder
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About This Item
Linear Formula:
YBa2Cu3Ox, x ~ 6.7-9.5
CAS Number:
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
NACRES:
NA.23
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form
powder
SMILES string
O=[Cu].O=[Ba].O=[Y]O[Y]=O
InChI
1S/Ba.Cu.5O.2Y
InChI key
OHBOMLDLKVPQKS-UHFFFAOYSA-N
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Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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W Krakow
Journal of electron microscopy technique, 18(3), 277-290 (1991-07-01)
A new method has been developed for simulating high resolution electron microscope images of weak phase objects via a digital television frame store system and fast Fourier transforms of a graphical representation of structures containing several atomic species. Here masks
Zhonghua Zhu et al.
Physical chemistry chemical physics : PCCP, 14(11), 3859-3863 (2012-02-14)
Nanoparticles of superconducting YBa(2)Cu(3)O(7-δ) were synthesized via a citrate pyrolysis technique. Room temperature ferromagnetism was revealed in the samples by a vibrating sample magnetometer. Electron spin resonance spectra at selected temperatures indicated that there is a transition from the normal
Kartik Venkataraman et al.
Applied spectroscopy, 59(5), 639-649 (2005-06-23)
Thin film embodiments of MBa2Cu3O7-x (MBCO, M = yttrium or a rare-earth metal) prepared by several different deposition methods on a variety of substrates were investigated by Raman microspectroscopy. Several of the unique characterization capabilities of Raman spectroscopy in the
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What is the mole ratio of oxygen can you be a little specific. Is it close to 7 because that's where it becomes superconducting
1 answer-
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