Background Bonding to silica-based ceramics requires micro mechanical (hydrofluoric-acid, HFetching) and chemical (silane) coupling [1–5]. The HF-etching provides dissolution of Abstract Statement of problem: The hydrofluoric acid (HF) is able to promote selective dissolution of the glassy phase in silica-based ceramic. However, the etching leaves insoluble silica-fluoride salts in the surface ...

Ceramic cores are widely used in investment casting, and ideal properties of essential for high-quality castings. Under the circumstances requiring thick cores, solid likely to encounter deformation cracking defects due accumulation shrinkage. Therefore, with superiority ceramic stereolithography producing complex parts, hollow lattice structures were designed fabricated. The dimensional accura...

Background. Adverse health effects due to occupational exposures are a global public concern and have been studied for many years. Ceramic workers occupationally exposed wide range of toxic substances as they manage clay (silico-aluminous feldspar mixed with sodium, potassium salts iron oxide). The objective this study was assess the presence any inflammation or alteration nasal mucosa ceramic ...

The ceramic separator has been interested in low-cost alternative proton exchange membranes a microbial fuel cell (MFC). In this study, the silica-modified integrated with yeast-based MFC for electricity generation and phenol treatment from winery wastewater. 30% (w/w) silica powder was mixed 70% natural clay. modified plates (0.2, 0.5, 1.0 cm of thickness) were prepared at 680°C used operation...