Six Bells coal

Figures 5 and 6 are of coke from Six Bells coal co-carbonized with green A170 pitch coke breeze and 1200 K A170 pitch coke breeze respectively. Position shows the optical texture of the coal-coke, while Position shows that of the pitch coke breeze.

Figure 5. Optical micrograph showing green pitch-coke breeze in coke from Six Bells coal. Positions C, E, F, and P discussed in text.

Microstrength results from Six Bells coal plus 10% A170 pitch coke... 

Breeze Additives. Optical microscopy of the Six Bells (CR 301a), Cortonwood (CR 401) and Maltby (CR 502) cokes with the A170 pitch coke breeze additives shows that the breeze additives with predominantly flow domain anisotropy optical texture are easily distinguishable from the surrounding coal coke of predominantly fine-grained mosaics. The effect of carbonization to 1200 K upon the petroleum coke breeze is to increase progressively the number and size of fissures within the breeze particles. 

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