Society of Glass Technology · [Sheffield] · leaf 84
atoiy furnace, the expansion between 500° and600° being reduced by about 20 per cent. The test piece wasthen heated for two hours at a temperature of 1520—1555°, result-ing in vitrifaction to a sugary fracture with a large decrease inporosity. Its expansion-temperature relationship was found to… … Joe- Fig. 7. basis of the glass pot mixture B was treated experimentally bythe electro-osmose process, and samples of the clay after treat-ment, and the residues, were supplied to us for examination. Thebehaviour of the treated clay after being fired to cone 06, cone 9,or cone 14 was very similar…
Glass
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