Enjoy these Ceramics Big Brain quizzes we've created for you, helping to test the Ceramics knowledge you have.
Cracks in dry ware due to extreme temperature change? | |
Cracks in fired pieces due to extreme temperature change? | |
Stress to ware from extreme temperature change during firing? | |
S cracks on bases of pieces due to firing them damp? | |
Thermal shock: Extreme stress caused to
a pot by sudden or uneven change in
temperature.
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A material that brings down the melting temperature of Silica? | |
An ingredient to deflocculate slip? | |
A suspender? | |
A tape used for resist work? | |
Flux: Oxides (usually alkaline) which,
when combined with the acid
glassformer, silica, encourage and lower
the temperature of ceramic fusion during
firing
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A material used to lower the melting point of a body or glaze? | |
A material used in clay bodies to increase plasticity? | |
A glaze Suspender? | |
Blended melted material, rendering a recipe safe, soluble or less volatile? | |
Frit/fritt: Materials which have been
prepared for use by melting (usually
together with at least one other
material-often a pure silica-to form a
fused compound) and grinding. This may
be done for a number of reasons,
including: reducing solubility, safely
containing poisons, reducing volatility
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The pouring ability of a glaze? | |
The setting ability of a deflocculated slip? | |
The characteristic property of clay which allows it to be a mouldable solid? | |
The ability of a clay body to be rolled into a slab? | |
Plasticity: The characteristic property
of clay which allows it to be a mouldable
solid. Plasticity in clays depends on a
number of criteria, including the purity
of the clay, uniformity and size of the
particles, and the bonding of particles
through souring.
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A vitrified body is one in which some of the silica in the body has been converted from its crystalline to its glassy phase? | |
The process of gasses escaping from a body at 785C (the daunting point)? | |
The process of firing pure porcelain? | |
The process of a glaze adhering to a piece? | |
Vitrification: The process by which
silica is converted to glass by the action
of heat and fluxes. A vitrified body is
one in which some of the silica in the
body has been converted from its
crystalline to its glassy phase. If all of
the silica in a body has been vitrified, it
may slump in firing, and the finished pot
will be very brittle.
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A glaze without alkalis? | |
The practice of glazing pots when they are raw? | |
A glaze which is, itself, composed of raw, unfritted materials? | |
A glaze without Acid? | |
Raw glaze: Although this term is
frequently used by studio potters to
refer to the practice of glazing pots
when they are raw, it strictly
(particularly in industry) denotes a glaze
which is, itself, composed of raw,
unfritted materials.
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A plastic that burns out during firing? | |
The description of a clay body after the bisque firing? | |
A mineral compound that reduces the firing range of a glaze? | |
A clay body in the kiln when heated to vitrification? | |
Pyroplastic: The condition of a clay
body in the kiln when heated to
vitrification. At this point, any impact
upon the pot may alter its shape, and,
ultimately, it may begin to sag under its
own weight.
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A Blue stain, used in bodies? | |
A self glazing clay? | |
A slip deflocculant? | |
A coloured slip like paste, used for textured decoration? | |
Egyptian paste: a prepared bady which
contains soluble alkalalis which migrate
to the surface by evaporation and thus
deposit fluxes which will fuse with the
body during firing, hence its description
as a self glazing clay.
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Guru Spotlight |
Heidi Splete |