Ceramics Exam 2

4 stages of wheel throwing

center, open, pull, shape

what is centering

it is the first step to creating a piece on the wheel, it helps align the clay to the wheel and creates a foundation of the piece

what is opening

it is the process of creating a hole with your fingers to create an even thickness in the base and in the walls so you can start the next step

what is pulling

it is the process of using your hands to pull up at the clay wall to make them taller and form a cylinder

what is shaping

it is the process of molding the clay cylinder to a different projected shape to create a piece of pottery

what is hard about centering

it is difficult to create a compressed, symmetrical mound of clay without the clay moving you around with the wheel

what is hard about opening

it is difficult finding the middle of the mound that is spinning and pushing your finger into it, even harder with nails

what is hard about pulling

it is difficult to create even walls with consistent pressure and slow hand movements

what is hard about shaping

it is difficult to get the correct angle to shape the clay so it will be different than a cylinder

what does centered clay look like

it looks like a mound of clay that when spinning is completely even and in the middle of the plastic bat

how do you center clay

by compressing your hands together and creating a mound of clay that does not move, it also includes coning which is making the clay move up into a cone shape then slowly pressing it back down to become a mound again (gets rid of air bubbles)

how to pull clay walls

by using one hand on the inside and the other on the outside to support, press your hands together and pull in an upwards motion starting from the bottom and working your way to the top, do this multiple times

what is incising

a design that is formed by cutting or carving shallow lines into the clay at a leather hard consistency

what is applique

applying (slip and score) low relief or shallow shapes to leather hard clay

what is piercing

cutting holes into leather hard ceramic work to create various shapes and patterns

what is mocha diffusion

it is a reaction with acid (vinegar) and alkali (slip) to create intricate veined patterns

what is printmaking

it is carving a custom stamp or design into linoleum and pressing it into leather hard clay

wax resist

using wax to prevent slip or glaze from adhering to a clay surface to keep a certain part bare, can be done during leather hard, bone dry, or bisque ware phase

what is silk printing

an image that is created by being printed onto clay with silkscreen (leather hard, bone dry, bisque ware)

what is Bubble glazing

a glaze technique that involves blowing bubbles in glaze and printing onto a bisque fired piece

what is mishima glaze inlay

drawing by inlaying a glaze or underglaze of contrasting color into lines incised in leather hard clay (opposite of sgraffito)

what is chip glazing

applying dried, broken pieces of glaze to wet glaze to create a specked effect

what is glaze trailing

using an applicator to apply glaze to create designs and details on bisque fired clay

what is marble glazing

creating a marbled effect on clay with underglaze, done on bisqueware

what is tape resist

using tape to resist glaze from spreading to other areas to create geometric patters and designs, done on leather hard, bone dry, or bisque ware