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The relation between vitrain properties and the development of optical anisotropy during carbonization

✍ Scribed by John W. Patrick; Alan Walker

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
564 KB
Volume
70
Category
Article
ISSN
0016-2361

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πŸ“œ SIMILAR VOLUMES

Development of optical anisotropy in vit
Development of optical anisotropy in vitrains during carbonization
✍ John W. Patrick; Malcolm J. Reynolds; Frederick H. Shaw πŸ“‚ Article πŸ“… 1973 πŸ› Elsevier Science 🌐 English βš– 825 KB

The purpose of this work was to examine the possible significance in the formation of metallurgical coke of the anisotropic spherical mesophase exemplified by that found during the carbonization of pitch-like materials, and to ascertain if the various types of optical anisotropy found in coke could

The influence of pressure on the develop
The influence of pressure on the development of optical anisotropy during carbonization of coal
✍ John W. Patrick; Peter D. Green; K.Mark Thomas; Alan Walker πŸ“‚ Article πŸ“… 1989 πŸ› Elsevier Science 🌐 English βš– 590 KB

Semicoke residues from high pressure dilatometer tests on a series of bituminous coals, were examined by polarized light microscopy to determine the effects of pressure on the optical anisotropy developed during the plastic stage of the carbonization process. Similar examinations were also carried o

Influence of carbonization conditions on
Influence of carbonization conditions on the development of different types of optical anisotropy in cokes
✍ J.W. Patrick; M.J. Reynolds; F.H. Shaw πŸ“‚ Article πŸ“… 1975 πŸ› Elsevier Science 🌐 English βš– 725 KB

The vitrain components of a series of coal samples were carbonized at temperatures from 400 to 1000Β°C at different rates of heating ranging from 0.5 to lO"K/min and utilizing soaking times up to 24 hr. Polished specimens prepared from the carbonized products were examined microscopically under polar