FT RAMAN-SPECTROSCOPIC CHARACTERIZATION OF OXALATE PRECURSORS TO YBCO SUPERCONDUCTORS

被引：8

作者：

MILLAR, GJ

BELL, RJ

BHARGAVA, A

MACKINNON, IDR

FREDERICKS, PM

机构：

[1] UNIV QUEENSLAND,CTR MICROSCOPY & MICROANAL,ST LUCIA,QLD 4072,AUSTRALIA

[2] QUEENSLAND UNIV TECHNOL,CTR INSTRUMENTAL & DEV CHEM,BRISBANE,QLD 4001,AUSTRALIA

来源：

MATERIALS LETTERS | 1995年 / 25卷 / 3-4期

关键词：

D O I：

10.1016/0167-577X(95)00150-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

FT Raman spectroscopy has been used to characterise the composition of the oxalate precursor to YBCO superconductors, By comparison to spectra of barium, copper and yttrium oxalate it is concluded that the co-precipitate incorporates not only the individual oxalate species but also a species ascribed to a mixed oxalate system. Significantly, Raman spectroscopy demonstrated that the precursor was not amorphous as previously deduced from XRD studies. In contrast, it is hypothesised that the sample consists of very small crystalline particles.

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页码：75 / 80

页数：6

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