Determination of phase compositions in ceramics from Gobi desert using complementary diffraction techniques
| Autor: | M. Brunelli, I.M. Siouris, Ralph Gilles, D. Visser, Markus Hoelzel, Winfried Kockelmann, Jens M. Walter, Stefanos Katsavounis |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Diffraction
Materials science Health Toxicology and Mutagenesis Neutron diffraction Public Health Environmental and Occupational Health Mineralogy Mullite Feldspar Pollution Cristobalite Analytical Chemistry Nuclear Energy and Engineering visual_art visual_art.visual_art_medium Radiology Nuclear Medicine and imaging Ceramic Pottery Quartz Spectroscopy |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 298:133-145 |
| ISSN: | 1588-2780 0236-5731 |
| Popis: | The city Khara Khoto is located in the Gobi desert in Inner Mongolia. This city was deserted in the late 14th century and rediscovered in the beginning of the 20th century. In the present study, ceramic sherds typical for the Khara Khoto area have been analysed using neutrons, laboratory X-ray diffraction, synchrotron radiation X-ray diffraction as well as optical microscopy as complementary probes in extracting information on the mineral phase compositions as well as on the firing conditions during the pottery production. The data evaluation was performed with the standard diffraction analysis package GSAS and the new developed program AmPhOrAe. The dominating phase is mullite (~60 %) compared to a variable mixture of SiO2 quartz and cristobalite phases (~35 %) and feldspar as a minority phase. Refiring experiments on one of the sherds allow estimating the firing temperatures of the ceramics within the region of 1,150 and 1,250 °C. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink