art 260 01 ceramics 1
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Glaze of Our Lives Part Three |
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Why do we fire pottery/glazes? * o because it’s fun o to induce a chemical reaction What temperature is cone 10? * What temperature is cone 6? (This is what we glaze fire to.) * What temperature is cone 04? (This is what we bisque fire to.) * What greek symbol do we use to represent “cone” when writing? * o Epsilon o Delta o Beta o Omega What year were cones invented and who invented them? * How did we historically measure the temperature of a kiln? Please describe in as much detail as you can. * What is the BEST tool to use to measure the temperature of a kiln? * o K type pyrometer o R type pyrometer o optical pyrometer As Seger used different proportions of glass formers and fluxes to create pyrometric cones, what cone was reached at almost no glass former and all flux? * In 1892, who developed a tweak that allowed for temperatures below cone 1? * What is the highest cone we can measure? * o cone 75 o cone 15 o cone 42 o cone 042 What is the lowest cone we can measure? * o cone 022 o cone 22 o cone 04 o cone 075 What is wadding? * As best as you can, please describe how pyrometers work. * How many cones are needed to get an accurate reading of how a firing went? * o 5 o 4 o 3 o 2 o 1 What position on a clock should a pyrometric cone be at for a firing to have been “well fired”? * Cones teach us that time (can) equal temperature. * o True o False A faster firing needs a _____ temperature * o higher o lower A slower firing needs a _____ peak temperature. * o higher o lower Why do explosions happen in a kiln? * |
