earth-alkalis

Journal Title, Volume, Page:

Archaeologia Polona 30, 151-162.

Year of Publication:

1992

Link:

http://www.iaepan.edu.pl/archaeologia-polona/article/429

Authors:

Béarat H

Current Affiliation:

Department of Materials Science, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine

[email protected]

Dufournier D

Nouet, Y

Preferred Abstract (Original):

Prolonged immersion in seawater results in chemical alteration of ceramics. This interaction primarily involves some earth alkalis. In the first experiment (six years duration), a powdered calcareous ceramic lost up to one-third of its calcium, gained an equivalent molar proportion of magnesium, and lost some of its strontium. XRD analyses showed it is free calcium phase (CaCO;, Ca (OH)= or CaO) that disappears, and that Mg= CO|(OH):'5H= O is formed. A second experiment, two months of contact with seawater for ﬁred synthetic mixtures of ...

An-Najah Staff

Alteration of Ceramics Due to Contact with Seawater