Test review Flashcards

1
Q

What are the 3 reasons for firing?

A

Permanency, utility, beauty

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2
Q

What is the range of temperatures on the ceramic temperatures chart?

A

Cone 012 - cone 13, or 1623 degrees to 2462

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3
Q

What temperature has to be reached to eliminate moisture from clay?

A

350 - 450 degrees

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4
Q

What temperature must be reached to eliminate the chemically combined water from clay?

A

950-1300

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5
Q

At what temperature is quartz conversion reached?

A

1850 (cone 06-05)

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6
Q

When alumina and silica begin to crystallize and harden.

A

Quartz conversion

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7
Q

Inversion takes place in several chemical stages with resultant expansion and shrinkage during the _________ and ___________.

A

Firing and cooling process

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8
Q

The ____________ in clay and glazes sets temperature at which omelette crystallization occurs.

A

Silica/flux ratio

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9
Q

During a bisque firing, green ware is fired to:

A

Cone 06, 1831 degrees

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10
Q

During glaze firings, glazed bisque is fired in a reduction atmosphere to:

A

Cone 10, 2381 degrees

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11
Q

Cone 8(2305) - cone 13 (2462)

A

Stoneware,porcelain

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12
Q

Cone 5 92185) - cone 13 (2462)

A

Salt

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13
Q

Cone 2 (2142) - cone 7 (2264)

A

Medium fire

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14
Q

Cone 022 (1112) - cone 1 (2109)

A

Earthenware

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15
Q

Cone 017 (1382) -cone 06 (1830)

A

Raku

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16
Q

Cutting or carving a line into clay:

A

Incising

17
Q

Scratching slip decoration to reveal the clay underneath

A

Sgraffito

18
Q

Attaching mold produced designs to leather hard clay by scoring and slipping

A

Sprigging

19
Q

Applying slip with a syringe to crate lines, which can then be combed or feathered.

A

Slip trailing

20
Q

Applying colored clip to leatherhard clay using a brush

A

Slip decoration

21
Q

Pressing a textured surface or design into clay

A

Stamping

22
Q

A preliminary firing to prepare clay forms for glazing without fear of breakage

A

Bisque

23
Q

A clay form that has been bisque fired

A

Biscuit

24
Q

Clays can shrink from.

A

12-25 percent, called shrinkage

25
Q

To soak a material in water

A

Slake