As part of a study of slagging in boiler furnaces the sticking temperature, strength of adhesion and contact angle of molten mineral glass drops on various oxidized steel substrates have been investigated. The freezing of the interface between the drop and the metal substrate occurs in milliseconds and in this time a bond is formed between the glass and the oxide coating on the steel. Mineral compositions of low melting point which have reduced liquidus temperatures when iron is dissolved from the surface appear to give the lowest sticking temperatures. Stainless steels which were not heavily oxidized gave low strengths of adhesion. Pyrrhotite formed from melting of pyrite wetted the oxidized surfaces well and gave low sticking temperatures.
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July 1980
This article was originally published in
Journal of Engineering for Power
Research Papers
Some Results of the Wetting and Adherence of Synthetic Coal Ash Droplets on Steel
A. K. Moza,
A. K. Moza
Fuels Science, Department of Material Sciences, The Pennsylvania State University, University Park, PA 16802
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L. G. Austin,
L. G. Austin
Department of Material Sciences, The Pennsylvania State University, University Park, PA 16802
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R. E. Tressler
R. E. Tressler
Department of Material Sciences, The Pennsylvania State University, University Park, PA 16802
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A. K. Moza
Fuels Science, Department of Material Sciences, The Pennsylvania State University, University Park, PA 16802
L. G. Austin
Department of Material Sciences, The Pennsylvania State University, University Park, PA 16802
R. E. Tressler
Department of Material Sciences, The Pennsylvania State University, University Park, PA 16802
J. Eng. Power. Jul 1980, 102(3): 679-683 (5 pages)
Published Online: July 1, 1980
Article history
Received:
August 8, 1979
Online:
September 28, 2009
Citation
Moza, A. K., Austin, L. G., and Tressler, R. E. (July 1, 1980). "Some Results of the Wetting and Adherence of Synthetic Coal Ash Droplets on Steel." ASME. J. Eng. Power. July 1980; 102(3): 679–683. https://doi.org/10.1115/1.3230325
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