Define Crawling In Ceramics

The glaze should have rounded edges where it has drawn away from the exposed clay body.

Define crawling in ceramics.

A ceramic glaze fault that occurs during firing of the ware islands of glaze form as it crawls leaving bare patches of body. She was going to. The bared patch can be quite dry or slightly shiny. A condition where glaze separates into clumps or islands during firing leaving bare clay patches showing in between.

Crawling is characterized by the appearance after firing of generally irregularly shaped bare or almost bare patches of the underlying clay body surrounded by a somewhat thicker outline of the glaze shown in the images below. Look it up now. You have much more control over the properties than you might think. To advance slowly feebly laboriously or with frequent stops.

They consist of water and undissolved powders kept in suspension by clay particles. To move slowly on the hands and knees or by dragging the body along the ground. Glaze crawling can have many possible causes but in most cases you can try a few solutions simultaneously to eliminate the problem. Movement of glaze over the body surface during the gloss firing stage due to dust or grease on the surface or over application of the glaze or excessive colloidal material in the glaze.

An intentionally crazed or cracked effect on art pottery emphasized by rubbing colouring matter into the cracks and re firing the ware. Although crazing is considered a glaze defect it can also be corrected by adjusting the clay body. Of paint to raise or contract because of an imperfect bond with the underlying surface. Crawled crawl ing crawls 1.

The baby crawled across the floor. To proceed or act servilely. Crawl 1 krôl intr v. Crawling a bare spot from the shrinking of a glaze on a finished piece where oil or grease prevents the glaze from adhering to pottery.

The hut crawled with lizards and insects. If the clay body has a high absorption rate over 4. Ceramics of a glaze to spread unevenly over the surface of a piece. Overrun with crawling things.

Damper a slab of refractory clay that is used to close or partially close the flue of a kiln. A glaze adjustment might not be possible if it is under so much tension that there is no room in the recipe for correction. Suspension in ceramics glazes are suspensions. Crawling a ceramic glaze fault that occurs during firing of the ware islands of glaze form as it crawls leaving bare patches of body.