Evaluation of fluorescent dyes for epoxy impregnation of porous ceramics
作者:
B. J. CROSBY,
J. UNSWORTH,
F. W. D. ROST,
期刊:
Journal of Microscopy
(WILEY Available online 1996)
卷期:
Volume 181,
issue 1
页码: 61-67
ISSN:0022-2720
年代: 1996
DOI:10.1046/j.1365-2818.1996.94375.x
出版商: Blackwell Science Ltd
关键词: Ba2Cu3YO7−δ;ceramics porosity;composites;epoxy impregnation;fluorescent dyes;impregnation;petrography;superconductor
数据来源: WILEY
摘要:
Eight different commercially available fluorescent dyes (fluorochromes) were tested for suitability for use in low‐viscosity epoxy resin. Dyes were compared based on solubility in different solvents and epoxy resin and a numerical criterion for each dye's fluorochromicity. The two best dyes, based upon the brightness of each dye after illumination by a UV source, were Hostasol Red GG and Hostasol Yellow 3G. These two dyes in epoxy resin were used to visualize impregnation and remnant porosity in porous superconductor ceramic pellets. The impregnant was either cured epoxy or a low melting point allo
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