scholarly journals Hematite as an Electrocatalytic Marker for the Study of Archaeological Ceramic Clay bodies: A VIMP and SECM Study

2021 ◽  
Author(s):  
Antonio Doménech‐Carbó ◽  
Michele Giannuzzi ◽  
Annarosa Mangone ◽  
Lorena Carla Giannossa ◽  
Francesca Di Turo ◽  
...  
Keyword(s):  
Archaeological Ceramic ◽  
Ceramic Clay

Hematite, an electrocatalytic marker for the study of archaeological ceramic clay bodies. A VIMP and SECM study

2021 ◽  
Author(s):  
Antonio Doménech-Carbó ◽  
Michele Giannuzzi ◽  
Annarosa Mangone ◽  
Lorena Carla Giannossa ◽  
Francesca Di Turo ◽  
...  
Keyword(s):  
Archaeological Ceramic ◽  
Ceramic Clay

Removal of Phosphate Species from Solution by Adsorption onto Red and Grey Ceramic Clay Used as Adsorbent

2014 ◽  
Vol 675-677 ◽  
pp. 434-439
Author(s):  
Yi Liang Yao ◽  
Chang Yu Lu ◽  
Wie Sheng Guan ◽  
Hai Gang Gou ◽  
Wei Huang
Keyword(s):  
Waste Water ◽  
Low Cost ◽  
Phosphate Removal ◽  
Liquid Ratio ◽  
Phosphate Species ◽  
Water Problems ◽  
And Control ◽  
Water Eutrophication ◽  
Clay Materials ◽  
Ceramic Clay

Waste water is becoming more and more around us and phosphates exit everywhere in waste water. Eutrophication, the most common phenomenon caused by phosphate, can lead to water problems. Therefore, searching suitable materials to remove and control phosphate in waste water is of great significance. In this reach project, the method of adsorption was chosen to remove phosphate and two kinds of ceramic clay materials which were low cost and easily available as adsorbent for adsorption were used for phosphate removal. According to the removal efficiency of phosphate removal, temperature, solid to liquid ratio, the original concentration of phosphate and experiment time were studied in the experiments.

scholarly journals Mineralogy and chemistry of archaeological ceramic fragments from archaeological Dark Earth site in Colombian Amazon

2011 ◽  
Vol 64 (1) ◽  
pp. 17-23 ◽  
Author(s):  
Marcondes Lima da Costa ◽  
Gaspar Morcote Rios ◽  
Mônia Maria Carvalho da Silva ◽  
Glayce Jholy da Silva ◽  
Uliana Molano-Valdes
Keyword(s):  
Brazilian Amazon ◽  
Chemical Characteristics ◽  
Amazon Forest ◽  
X Ray Diffraction ◽  
Aluminium Phosphate ◽  
X Ray ◽  
Clay Matrix ◽  
Archaeological Ceramic ◽  
Colombian Amazon ◽  
Grey Colour

Several Archaeological Dark Earth (ADE) sites have been already found in the Colombian Amazon forest showing high content of archaeological ceramic fragments similarly to those in the Brazilian Amazon represented by Quebrada Tacana site. Their fragments are yellow to grey colour, display a burned clayey matrix which involves fragments of cariapé and coal and ash particles, besides grains of quartz and micas. The clay matrix is made of metakaolinite, quartz, and some mica flakes, chlorite and sepiolite. Cariapé and cauixi spicules are constituted of cristobalite, which is also the main mineral component of the coal and ashes. Although not detected by X-ray diffraction, the phosphate minerals should be present, since the contents of phosphor reach up to 2.90 Wt.% P2O5. Possibly it occurs as aluminium-phosphate, since Ca contents fall below 0.1 Wt.%. These mineralogical and chemical characteristics allow to correlate these ceramic fragments with those found in the ADE in Brazil and reinforce phosphor as an important chemical component, which indicates human activity by the daily use of pottery all over the Amazon region.

Provenance Study of Archaeological Ceramic

2003 ◽  
Vol 21 (4) ◽  
pp. 697-706 ◽  
Author(s):  
C. S. Munita ◽  
R. P. Paiva ◽  
M. A. Alves ◽  
P. M. S. de Oliveira ◽  
E. F. Momose
Keyword(s):  
Provenance Study ◽  
Archaeological Ceramic

Characterization of a Red Mud and a Clay Body for Ceramic Fabrication

2014 ◽  
Vol 798-799 ◽  
pp. 514-519 ◽  
Author(s):  
Michelle Pereira Babisk ◽  
Thalissa Pizetta Altoé ◽  
Henrique Junio de Oliveira Lopes ◽  
Ulisses Soares do Prado ◽  
Monica Castoldi Borlini Gadioli ◽  
...  
Keyword(s):  
Red Mud ◽  
Mineralogical Composition ◽  
Processing Plants ◽  
Clay Matrix ◽  
Clay Body ◽  
Clay Ceramics ◽  
Red Ceramics ◽  
Ceramic Clay

Red mud is a specific term applied for a residue generated during the processing of aluminum ores, mainly bauxite in the Bayer process, to produce alumina (Al2O3). In several countries where bauxite is mined and processed, distinct red muds are generated in ever growing amounts and becoming an environmental problem. This problem is also affecting the large bauxite processing plants in Brazil and a possible solution for the red mud is its addition to clay ceramics. Before an industrial scale addition is implanted, the specific red mud needs to be characterized for compatible behavior with the ceramic clay matrix. Therefore, the objective of the present work was to characterize a red mud generated in Brazil for an eventual addition to clay ceramic. This was conducted through the determination of density, chemical and mineralogical composition as well as size distribution and microscopic observation of particles. The results indicated that the specific red mud investigated is compatible with clays and has a potential for addition in common red ceramics.

scholarly journals The Missing Step of Pottery chaîne opératoire: Considering Post-firing Treatments on Ceramic Vessels Using Macro- and Microscopic Observation and Molecular Analysis

2019 ◽  
Vol 27 (2) ◽  
pp. 302-326 ◽  
Author(s):  
Léa Drieu ◽  
Cédric Lepère ◽  
Martine Regert
Keyword(s):  
Molecular Analysis ◽  
Microscopic Observation ◽  
Thermal Transformation ◽  
Diagnostic Tools ◽  
Reducing Atmosphere ◽  
Full Diversity ◽  
Mode Of Application ◽  
Ceramic Vessels ◽  
Archaeological Ceramic ◽  
Hot Surface

Abstract Post-firing treatments, produced by the interaction of an organic material with the hot surface of a ceramic, are frequently described in ethnographic literature, but have rarely been identified in archaeological ceramic assemblages. In order to address this question, this paper describes a methodology that combines macro- and microscopic observation and molecular analysis. The study of experimental ceramic vessels provided diagnostic tools to identify the type of substances, their liquid or solid state, and their mode of application and attested that the post-firing treatments do not completely waterproof the ceramics. The difficulty to observe macro- and microscopic evidence of post-firing treatments when pots are fired in reducing atmosphere suggests that these processes are probably underestimated in archaeological assemblages. Furthermore, the identification of molecular thermal transformation markers, such as ketones, calls into question their classical interpretation as markers for the cooking of fatty content. This pioneering work highlights the complexity of studying post-firing treatments, which leave small traces that are easily missed or misinterpreted. In order to address this issue, we propose a multi-analytical approach, which can serve as a basis for future studies to explore the full diversity of post-firing treatments mentioned in ethnoarchaeological literature.

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