Pottery or clay sculpture fired at high temperatures in a kiln to make them harder and stronger. . Ceramics Around the World. Ceramics have been used, throughout the world, for tens of thousands of years..
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CERAMICS What is Ceramics?
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What is Ceramics?
Pottery or clay sculpture fired at high temperatures in a kiln to make them harder and stronger
Ceramics Around the World
Ceramics have been used, throughout the world, for tens of thousands of years.
Archeologists have uncovered human-made ceramics in the form of animal and human figurines that date back to at least 24,000 BC. Slide4
Examples of African and
Middle Eastern Ceramics
Examples of Asian Ceramics
China – Ming Dynasty
Terra Cotta Warriors
Examples of North and
South American Ceramics
United States (Native American Pueblo)Slide7
Examples of European Ceramics
Examples of Contemporary CeramicsSlide9
Examples of Contemporary CeramicsSlide10
Kiln: a specially designed oven capable of reaching temperatures over 2000° F (can be electric, gas, or wood-fired)
Clay: moist, sticky dirt (mud) composed of fine-grained minerals, which can be shaped when wet and hardened when dried or heated
: mainly used to shape claySlide11
Common Types of Clay
: clay fired at relatively low temperatures (1800°F-2100°F), often contains iron and has a porous surface when fired
Stoneware: a buff, gray or brown clay which is heavy, opaque, and highly plastic in nature with a high firing temperature (2200°F-2400°F)
: a very fine white clay with a high firing temperature (2200°F-2550°F), is non-porous, strong, and translucent when firedSlide12
Tools, Tools, Tools….
wire clay cutter
Clay Shaping Methods
Slip CastingHand BuildingSlide14
Slip Cast CeramicsSlide15
Coil ConstructionSlab ConstructionSlide16
Pinching is a pottery technique fundamental to manipulating clay. Making a pinch pot consists of
pressing the thumb into a ball of clay, and drawing the clay out into a pot by repeatedly squeezing the clay between the thumb and fingers. Slide17
Coils are long, snake-like ropes of clay that are used in making pottery. It involves building the walls of a form with a series of coils into the required shape. The surface can either remain coil-textured or they can be smoothed
How to make a coil potSlide20
Some advanced coil ceramicsSlide22Slide23Slide24Slide25Slide26
Stages of Clay
: soft/plastic clay
Leather hard (greenware):
clay is dry enough to maintain form and wet enough to be smoothed, carved, and added to
Bone dry (greenware
): clay has dried as much as possible before first firing and is extremely brittle
Bisque: first firing where all remaining water molecules are released from the clay transforming it into ceramic (Why are air bubbles dangerous during a bisque fire?)
Glazed: second firing where glaze has melted into the ceramic surface making it non-porousSlide27
Hazards of clay dust:
Silica particles = extremely tiny pieces of glass, which became airborne and easily inhaled….extremely hazardous to lungsSolution:
WET clean-up prevents dust from building up and becoming airborneUse wet sponges, spray bottles, wet paper towelSlide28
So what we are doing today…
I will demo how to start to make a coil pot.
We will then use some time to experiment with the material of clay and get used to using it.
CERAMICS What is Ceramics? - Description
Pottery or clay sculpture fired at high temperatures in a kiln to make them harder and stronger Ceramics Around the World Ceramics have been used throughout the world for tens of thousands of years ID: 684650 Download Presentation
The art of making objects out of clay. What is Clay?. A fine grain material from the earth that is naturally found in soil and sedimentary rock. . Lesson 1a. Hand building Techniques. Pinch - Forming a clay object .
Hand Building Techniques . Coiled Pottery . - . One of the oldest ways of forming pottery. Long . strands/snakes/coils . of clay which are laid on top of each other and joined through . slipping and scoring. .
They are distiguished by its bonding which is ionic or covalent bonding. High elastic modulus and hardness. High melting point. Low thermal expansion. Good chemical resistance. Brittle. Thermal insulators.