Study of the influence of sintering temperature on water absorption in the manufacture of porcelain cups

• Type: Chapter or Part of a Book
• Date: 2019

Authors

Teresa P. Duarte (Author) FEUP; Jorge Lino (Author) FEUP; P. Pereira (Author) Other

Book

Title: Materials Design and Applications II

Pages: 129-147

ISBN: 978-3-030-02256-3

Electronic ISBN: 978-3-030-02257-0

Indexing

Scopus - 2 Citations

Other information

Authenticus ID: P-00R-FKQ

DOI: 10.1007/978-3-030-02257-0_11

Abstract (EN): The final quality of ceramic parts is strongly related with the raw materials, which have different origins, are available in nature in different places, and present heterogeneous characteristics. The particularities of ceramic manufacturing process, like hardness and moisture of pastes, drying and firing cycles, atmospheres, etc., are a multiplicity of factors that causes variability of properties on the final parts, affecting their use in several applications. This work presents a study carried out in a ceramic company that produces products for hotelware, namely coffee plates and mugs. The objective was study the influence of the firing temperature on the porosity, measured by the water absorption capacity. Taking into account the great influence of the energy costs on the final price of the pieces, it was intended to determine the lowest sintering temperature compatible with these ceramics request. It was found that the highest porosity values (about 23%) occurred at temperatures of 750 °C. From 850 to 1050 °C, the porosity variation is not significant, ranging from 21 to 22%, so it is not necessary to use higher sintering temperatures, which significantly increases the cost of the product. © Springer Nature Switzerland AG 2019.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 19