The presence of cracks after firing
The act of firing might result in detrimental effects on the structural integrity of the ceramic material. Cracks have diverse morphologies depending on their underlying causes. Cracks that originate from the fire process itself exhibit a conchoidal morphology, characterized by sharp edges and sections of glaze with sharp edges if the cracks occur during the cooling phase. In cases when the cracks originate from pre-existing flaws or are formed during the heating process, their edges tend to exhibit a more rounded shape, while the cracks themselves appear more irregular and jagged in nature. Cracks that occur during the firing process are frequently linked to modifications that result in the altering of the shape or dimensions of the product.
The occurrence of these faults might be attributed to the accumulation of tensions during preceding stages or to issues in the firing cycle characterized by excessively sharp temperature gradients, particularly at locations where the body undergoes mineralogical transformation. The implementation of solutions is contingent upon the identification and analysis of the root cause. The mitigation of cracking and deformation can frequently be achieved by modifying the modeling procedure to enhance the strength of the pertinent regions.