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Merck
모든 사진(1)

주요 문서

328626

Sigma-Aldrich

Yttrium barium copper oxide

powder

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10 G
₩189,907

₩189,907


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10 G
₩189,907

About This Item

Linear Formula:
YBa2Cu3Ox, x ~ 6.7-9.5
CAS Number:
MDL number:
UNSPSC 코드:
12352303
PubChem Substance ID:
NACRES:
NA.23

₩189,907


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벌크 견적 요청

양식

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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픽토그램

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신호어

Warning

유해 및 위험 성명서

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

표적 기관

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

dust mask type N95 (US), Eyeshields, Gloves


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시험 성적서(COA)

Lot/Batch Number

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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
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
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

질문

  1. 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 답변
    1. 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.

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