ISSN:
1551-2916
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Commercial aluminosilicate fibers of the nominal composition 45 wt% Al2O3, 54 wt% SiO2 have similar bulk properties but different surface chemistries, depending on whether they were formed with (WL) or without (NL) the aid of a mineral-oil lubricant. Both fiber samples are X-ray amorphous as formed; they have similar crystallization temperatures and have activation energies for crystallization of 751 and 854 kJ/mol for samples NL and WL, respectively. Fiber surface properties differ markedly, as indicated by diffuse reflectance infrared transmission spectroscopy and X-ray photoelectron spectroscopy. These techniques show that carbon from the lubricant degradation and/or combustion is incorporated into the melt, whereupon it reacts with nonbonding oxygens in the Al-O network to form network carbonates.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1151-2916.1998.tb02778.x
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