Define Crawling In Ceramics

Crawling a ceramic glaze fault that occurs during firing of the ware islands of glaze form as it crawls leaving bare patches of body.

Define crawling in ceramics.

Crawled crawl ing crawls 1. To proceed or act servilely. You have much more control over the properties than you might think. Suspension in ceramics glazes are suspensions.

Of paint to raise or contract because of an imperfect bond with the underlying surface. Crawling wordreference english dictionary questions discussion and forums. A condition where glaze separates into clumps or islands during firing leaving bare clay patches showing in between. A glaze adjustment might not be possible if it is under so much tension that there is no room in the recipe for correction.

She was going to. Glaze crawling can have many possible causes but in most cases you can try a few solutions simultaneously to eliminate the problem. We crawled along in traffic until we reached the highway. They consist of water and undissolved powders kept in suspension by clay particles.

The glaze should have rounded edges where it has drawn away from the exposed clay body. Although crazing is considered a glaze defect it can also be corrected by adjusting the clay body. Crawl 1 krôl intr v. Look it up now.

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. 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. To advance slowly feebly laboriously or with frequent stops. To move slowly on the hands and knees or by dragging the body along the ground.

The baby crawled across the floor. An intentionally crazed or cracked effect on art pottery emphasized by rubbing colouring matter into the cracks and re firing the ware. Ceramics of a glaze to spread unevenly over the surface of a piece. If the clay body has a high absorption rate over 4.

The bared patch can be quite dry or slightly shiny. First make sure the problem is actually crawling and not another defect. The hut crawled with lizards and insects. 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.