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| Title: | Kinetics of Sodium Sulfate as observed by humidity cycling with ESEM |
| Authors: | López-Arce, Paula  ; Doehne, Eric |
| Issue Date: | Jun-2006 |
| Publisher: | Consejo Superior de Investigaciones Científicas (España) |
| Citation: | Heritage, Weathering and Conservation Conference (HWC2006) |
| Abstract: | [Background] Fluctuations of atmospheric conditions cause dehydration and hydration of hygroscopic salts, leading to expansion and contraction that results in fatigue stress of the porous material (Overmiller, 1926 in Shaffer 1932; Arnold & Zehnder 1988; Charola & Weber, 1992). [Objective] Quantify reaction kinetics and morphological changes for sodium sulfate transition from decahydrate phase Mirabilite (Na2 SO4 x 10H2O) to a microcrystalline powder of anhydrous Thenardite (Na2 SO4) due to relative humidity cycling in ESEM (Doehne, 1994). |
| Description: | 15 slides.-- Communication presented in: Heritage, Weathering & Conservation Conference (Madrid, June 21-24, 2006). |
| URI: | http://hdl.handle.net/10261/7807 |
| Appears in Collections: | (IGE) Comunicaciones congresos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| HWC2006presentationV2.pdf | 1,12 MB | Adobe PDF |  View/Open |
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