Effect of Open Firing and Electric Furnace Firing on Material Characterization


ÇETİNTAŞ E.

El-Cezeri Journal of Science and Engineering, cilt.12, sa.1, ss.66-73, 2025 (Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 12 Sayı: 1
  • Basım Tarihi: 2025
  • Doi Numarası: 10.31202/ecjse.1460823
  • Dergi Adı: El-Cezeri Journal of Science and Engineering
  • Derginin Tarandığı İndeksler: Scopus
  • Sayfa Sayıları: ss.66-73
  • Anahtar Kelimeler: Ceramic, color, electric furnace, open firing, Sorkun, XRD
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Ceramic production started with firing earthenware products using fire and has been developed with various techniques and discoveries until today. Although these developments continue, ceramic products produced using traditional methods still exist. Considering today’s conditions, it is essential to experimentally examine different firing environments of ceramics, considering both the cost and the sustainability of the products. This study aimed to determine the changes caused by the differences between open firing and electric furnace (800◦ C) firing environment in the local pottery production center in Sorkun village of Mihalıççık district of Eskişehir province. For this purpose, water absorption, firing shrinkage, bulk shrinkage, color measurement, chemical analysis (XRF), mineralogical analysis (XRD), differential thermal analysis (DTA) and scanning electron microscopy (SEM) analysis of the samples were performed after two firing process. Based on the obtained results, the values of dry, firing, and bulk shrinkage after open firing suggest that the separation of structural water and/or the complete occurrence of crystal changes in the ceramic sample are not fully achieved compared to electric furnaces. It was determined that whiteness (L* ) and redness (a* ) increased after the electric furnace firing. XRD analysis of results indicated that clinochlore, amphibole, quartz, fluoro-ederite minerals were determined in open firing samples, anorthite, calcium aluminum silicate, magnesiohornblende, quartz minerals were determined in electric furnace firing. The presence of clay minerals in the open firing sample confirms that 800◦ C was not fully reached.