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A Review of Rehydroxylation in Fired‐Clay Ceramics
Author(s) -
Hamilton Andrea,
Hall Christopher
Publication year - 2012
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2012.05298.x
Subject(s) - ceramic , pottery , materials science , mineralogy , clay minerals , composite material , geology , archaeology , history
Understanding the hygral reactivity of ceramic materials is essential to understanding the long‐term behavior of building materials and of archeological pottery, especially in relation to dating. We explore the literature on the expansion of fired‐clay ceramics, reviewing strain and mass measurements at the bulk scale, and rehydroxylation ( RHX ) and dehydroxylation ( DHX ) processes in clay minerals at the molecular level. We present open questions on the nature of ceramic rehydroxylation and its apparent adherence to a sub‐diffusive kinetic (time) 1/4 power law. We discuss measurement of the RHX process through mass gain in relation to a proposed new dating method for archaeological ceramics.