Characterization of microstructural and thermal properties of steatite/cordierite ceramics prepared by using natural raw materials

Technological properties of ceramic produced from steatite (soapstone) residues–kaolinite clay ceramic composites

“…There was a slight decrease of 2% in water absorption in P8 (Fig. 4) (Gökçe et al, 2011). By filling the pores, the liquid phase helps to densify the mass, generating a greater approximation of the particles, which results in a small retraction of the sintered ceramic piece (Souza and Holanda, 2005).…”

“…By filling the pores, the liquid phase helps to densify the mass, generating a greater approximation of the particles, which results in a small retraction of the sintered ceramic piece (Souza and Holanda, 2005). Densification and sintering are slow processes in the function of the enstatite-protoenstatite transformation (Rohan et al, 2004;Gökçe et al, 2011). After firing at 1200°C, P10 presented a lesser volume of pores (Fig.…”

The preparation and mechanical properties of carbon–carbon/lithium–aluminum–silicate composite joints

“…However, some cracks (marked by white arrow) still can be found between SiC interlayer and MAS interlayer, which shows thermal stress exist in the SiC/MAS interface mainly caused by the mismatch of CTE between SiC and MAS glass-ceramics [30]. As LAS glass has good flowability at 1200°C and volume contraction occurs during sintering and cooling, some holes can be observed in the LAS glassceramics (marked by black arrows).…”

Influence of acid‐treated talc and Na2CO3 flux on mineralogical phase composition and porosity in steatite ceramics

“…The primary sources of common fluxes are alkaline and alkaline earth carbonates, feldspars, other metallic oxides such as ZnO or PbO and B 2 O 3 . Carbonate flux additive forms during the sintering process a vitreous phase, which melts and surrounds the crystalline phase and influences ceramic mechanical and electrical properties . Sodium carbonate (Na 2 CO 3 ) is an active source of alkali fluxing agent sodium oxide (Na 2 O).…”