Throughout this course to date we have emphasised the important basic
theoretical structure of a glaze melt in which flux oxides interact with
oxides that form glass when melted and oxides that stretch or prolong
the process called stabilisers.
Much of our attention has been focused on levels of silica and alumina
in the glaze. The unity formula is a form of analysis which gives us
a picture of a glaze melt in terms of the proportional relationship between
a single theoretical molecule of flux and molecules of Al2O3 and
SiO2.
The unity formula allows us to assess possible melt qualities by looking
at the levels on SiO2 and Al2O3 in the unity formula in relation to the
proposed firing temperature for the glaze.
Full lessons contain content and activities not listed above. More lessons will be added to this list as they are completed.
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Contact: Lawrence Ewing - 1015 Ellis Rd, Five Rivers, RD3, Lumsden, Northern Southland,
New Zealand Email: lawrenceewing8@gmail.com
