THE POSSIBILITY OF ADDING A MANUAL FORMATION TO CERAMIC PRODUCTSAND RE-BURN

Received: 27 May 2017 Final Accepted: 29 June 2017 Published: July 2017 Research depended on the practical application of preparing clay that has the ability of self-adhesion on ceramic. Without separation after the drought (burning), as well as its lack of deflation property, have plasticity appropriate,ability coloring by porcelain color (glaze and lining and stains and others), and finally has the potential to burn once for each of clay and glaze. Experiments have been conducted in this regard at the local clay (Aswan clay, Pall Clay) to obtain the required specifications, those specifications were available through the improvement of the local clay specifications and get the clay suitable. The application took place on different products and conduct experiments in this clay, showed satisfactory results. This may be useful in several areas, including that solves some technical problems with the ceramic producers, whether artists or in the field of industry and quantitative production in the porcelain, they can keep ceramic products which lost parts of them, due to these products may be have artistic or literary value great.

There is a problem since the origin of the porcelain industry that faced the porcelain producers, whether artists or manufacturers, it is that ceramic cannot be modified after drought or fire, which is an obstacle facing the potter especially if was lose part of the piece of ceramic during the fire or trading or other. and may this has happened to piece with a highly artistic and technical value, the objective of this research is the possibility of addressing this issue by adding a manual formation by using processor clay, to biscuits shape, or even after the second heartburn (product covered with glaze). , Using the properties of clay processor qualifies it to do this purpose, in terms of plasticity and sticking with the ceramic and portability colouring with porcelain colours on its dry surface and not shrinking, and finally burn once.

Aim of the research:-
The research aims at the possibility of modifying the ceramic shape that has already burnt or covered with glaze by adding a formation by cly prepared for this purpose, and the possibility of covering the added part or the whole shape by glaze, or other suitable ceramic colours, and then burning the ceramic shape again ISSN: 2320-5407

Research importance:-
The importance of the research is solving the technical problem facing the potters since the start of this industry. the solution is the possibility of adding the formation of clay on the biscuit ceramic or glazed ceramic , then, add glaze or other ceramic colours on the additive clay, or on the all product, and then burn the product again.
Research methodology:-It is empirical research and descriptive approach by conducting laboratory experiments, observation and discussion of the results and description.

Research hypotheses:-
Finding a technique to possibly add the formation of clay on the ceramic products in stages after the first burning (biscuits) or after the second arson (glaze).and possibility of applied glaze on formation clay after the dry step, then burn a the whole piece.

Research problem:-
The problem of research in the potters' inability to add an amendment to the form of the ceramic after the first or second heartburn , forcing sometimes to a loss in a ceramic piece as a result of the inability to complete the lost portions of them .

Research steps:-
The idea of research is to get the clay to have a special specification allows its use as a supplement for some ceramic forms scorched having these qualities:-1. The possibility of self-sticking with the body ceramic (at the stage of biscuits -glazed ceramic.) which gives a smoother shape and the integration of logical and does not need external adhesive 2. A plasticity suitable for manual formation. 3. Retained of form added after the stages of drought and burn. 4. Portability colouring by various ores porcelain. 5. Has the ability to burn once with glaze. 6. Acquires hardening appropriately after the fire and the layer color homogeneous. 7. It doesn't shrink after drought and fire.

Applications:-
Some practical experiments carried out on the earthen clay in order to improve its properties, to get a clay thathave the required specifications,along with the rest of the required specifications, by adding materials and ores that resist the downturn, does not affect the plasticity necessary for the formation as well as the porosity and other natural specifications of the clay.These properties have been available in one of the experiments, which resulted in the clay enhancer.It has applied some practical experiences on this improved clay to test the following: 1. Possibility of using the mud to complete portions of the ceramic product (biscuits). 2. Then adding the glaze on the product supplement and burn again to get a glazed ceramic product. 3. The possibility to use this clay to complete portions of the ceramic product (glazed). 4. Then add the glaze on the appropriate supplementing and burn it again to get a glazed ceramic product.
After conducting many experiments on the local earth clay, a range of wares improved clay was obtained, which has the characteristics desired from where plasticity and portability colouring with glaze on the body in the dry phase, burning at once. (Pictures1 &2)