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Understanding Ceramic Glazes

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Digitalfire Corporation
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Glaze
Ceramics
There are multiple factors beyond just the recipe that make this cone 6 pottery glaze both attractive and functional. The Plainsman, Pottery Glazes, Calcium, Cone, The Incredibles, Matte, Pottery Ideas, Factors, Attractive
The Plainsman
Pottery Glazes
Calcium
Cone
The Incredibles
Matte
Pottery Ideas
Factors
Attractive
Titanium Dioxide in a cone 6 calcium matte glaze
There are multiple factors beyond just the recipe that make this cone 6 pottery glaze both attractive and functional.
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
Here is what adding 6% lithium carbonate to an Alberta Slip glaze does https://digitalfire.com/picture/3342 Vancouver Bc, Carbonate, Alberta, Glaze, Potter, Slip, Ads, Ceramics, Picture
Vancouver Bc
Carbonate
Alberta
Glaze
Potter
Slip
Ads
Ceramics
Picture
Here is what adding 6% lithium carbonate to an Alberta Slip glaze does
Here is what adding 6% lithium carbonate to an Alberta Slip glaze does https://digitalfire.com/picture/3342
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
You can make your own Amaco PC-56 Ancient Copper dipping or brushing glaze https://digitalfire.com/picture/3343 Iron Red, Amaco, Glaze Recipe, Make Your Own, Stoneware, Porcelain, Ancient, Copper, Pottery
Iron Red
Amaco
Glaze Recipe
Make Your Own
Stoneware
Porcelain
Ancient
Copper
Pottery
You can make your own Amaco PC-56 Ancient Copper
You can make your own Amaco PC-56 Ancient Copper dipping or brushing glaze https://digitalfire.com/picture/3343
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
This leaf fossil was just found in a lump from the Plainsman 3D stockpile. https://digitalfire.com/picture/3339 Stockpile, Founded In, Raw Materials, Fossil, Understanding, 3d, Raw Material
Stockpile
Founded In
Raw Materials
Fossil
Understanding
3d
Raw Material
Leaf fossil found in Plainsman 3D raw material
This leaf fossil was just found in a lump from the Plainsman 3D stockpile. https://digitalfire.com/picture/3339
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
This simple procedure, when done in consort with even drying, prevents cracks that develop on our handle joins. Prevention, Handle, Procedure, Mugs, Simple, Tableware
Prevention
Handle
Procedure
Mugs
Simple
Tableware
A step to prevent cracking at handle-joins on thrown mugs
This simple procedure, when done in consort with even drying, prevents cracks that develop on our handle joins.
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
A black engobe on the bases of these mugs makes them appear to be black porcelain. Three key things were done to make this work. Gum, Work, Enamel, Ceramica
Gum
Work
Enamel
Ceramica
A special gummed engobe made this possible
A black engobe on the bases of these mugs makes them appear to be black porcelain. Three key things were done to make this work.
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
Making a simple white stoneware mug, matte outside and glossy inside, is much more difficult than you might think. Many things can go wrong. https://digitalfire.com/picture/2829 Stoneware Mugs, Glossy, Canning
Stoneware Mugs
Glossy
Canning
An ordinary white mug: More difficult to make than you think!
Making a simple white stoneware mug, matte outside and glossy inside, is much more difficult than you might think. Many things can go wrong. https://digitalfire.com/picture/2829
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
Sometimes it is better to replace the base in a production glaze recipe. Here we did it while also maintaining the chemistry. Burning Body, Pint Jars, Iron Oxide, Chemistry, Good Things, Base, Recipes
Burning Body
Pint Jars
Iron Oxide
Chemistry
Good Things
Base
Recipes
Sometimes it is better to replace the base in a production glaze recipe
Sometimes it is better to replace the base in a production glaze recipe. Here we did it while also maintaining the chemistry.
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
Example of variegation by thickness-induced boron blue. Often this effect is a nuisance but on dark burning bodies it creates a striking effect. Boron, Bodies, Example, Dark, Create, Blue
Boron
Bodies
Example
Dark
Create
Blue
Example of variegation by thickness-induced boron blue
Example of variegation by thickness-induced boron blue. Often this effect is a nuisance but on dark burning bodies it creates a striking effect.
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
Frits are man-made glass powders, they normally soften over a wide temperature range. However raw materials or minerals, often melt over a narrow range. Melting Temperature, Borate, High Sodium, Surface Tension, Thermal Expansion, Traditional Ceramics, Calcium Carbonate, Temperatures
Melting Temperature
Borate
High Sodium
Surface Tension
Thermal Expansion
Traditional Ceramics
Calcium Carbonate
Temperatures
A frit softens over a wide temperature range
Frits are man-made glass powders, they normally soften over a wide temperature range. However raw materials or minerals, often melt over a narrow range.
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
This special-effect pottery glaze relies on lithium to give the high melt fluidity needed for crystal formation. But that Li2O can be sourced from spodumene also. https://digitalfire.com/picture/2301 Sourcing, Bubbles, Clay, Crystals, Material
Sourcing
Bubbles
Clay
Crystals
Material
Sourcing Li2O from spodumene instead of lithium carbonate comes at a cost
This special-effect pottery glaze relies on lithium to give the high melt fluidity needed for crystal formation. But that Li2O can be sourced from spodumene also. https://digitalfire.com/picture/2301
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
Matte glazes depend on a sensitive chemistry, a small material variation crossed a tipping point turning this one glossy. The fix: Only 1% superfine calcined alumina. Fix It, Power, Turning, Sensitive
Fix It
Power
Turning
Sensitive
Calcined alumina matte
Matte glazes depend on a sensitive chemistry, a small material variation crossed a tipping point turning this one glossy. The fix: Only 1% superfine calcined alumina.
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
Frits are not 100% reliable. This melt fluidity test shows a good batch on the left and a bad batch of the same frit on the right. Foolproof, Bad
Foolproof
Bad
Frits are not foolproof. This one has been improperly mixed and smelted.
Frits are not 100% reliable. This melt fluidity test shows a good batch on the left and a bad batch of the same frit on the right.
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
Terra cotta clays provide a vivid picture of the vitrification process if you take the time to fire samples across multiple temperatures Clay Bar, Terracotta Tiles, Glossary, Data Sheets, Terra Cotta, Bottom
Clay Bar
Terracotta Tiles
Glossary
Data Sheets
Terra Cotta
Bottom
A terra cotta clay fired from cone 06 (bottom) to 4
Terra cotta clays provide a vivid picture of the vitrification process if you take the time to fire samples across multiple temperatures
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes
Of all the pieces I make, ones like these mean the most to me because I process the clay myself. Mother Nature, Piecings, Process
Mother Nature
Piecings
Process
Mother Nature's Porcelain and Glaze!
Of all the pieces I make, ones like these mean the most to me because I process the clay myself.
Digitalfire Corporation
Digitalfire Corporation
Understanding Ceramic Glazes