Teresa Palomar , Nadine Schibille , Luis Cerqueira Alves , Rafael Javier Díaz Hidalgo , María Auxiliadora Gomez-Morón
{"title":"Historical restorations of the Maqṣūrah glass mosaics from the Great Mosque of Córdoba","authors":"Teresa Palomar , Nadine Schibille , Luis Cerqueira Alves , Rafael Javier Díaz Hidalgo , María Auxiliadora Gomez-Morón","doi":"10.1016/j.bsecv.2022.04.004","DOIUrl":"https://doi.org/10.1016/j.bsecv.2022.04.004","url":null,"abstract":"<div><p>The Great Mosque of Córdoba is the only mediaeval Islamic monument in al-Andalus that still contains some of its original 10th-century glass mosaic decoration, even though they were significantly altered and restored several times in the 18th, 19th and 20th centuries. By examining analytical, textual, and graphic evidence, this study attempts to reconstruct the different transformations of the <em>Maqṣūrah</em>, focusing on the glass mosaics in order to assess possible implications for their state of preservation. The results show that high-alkaline glass, which can be associated with modern <em>tesserae</em>, was used to restore the <em>Miḥrāb</em> and <em>Sābāṭ</em> mosaics. Modern pigments were also detected in the paints that were applied <em>in situ</em> to the surface of the colourless glasses. Textual and analytical evidences prove that <em>Bāb Bayt al-Māl</em> mosaic was completely removed in the 20th century and a replica with high-lead <em>tesserae</em> was installed in the same place.</p></div>","PeriodicalId":56330,"journal":{"name":"Boletin de la Sociedad Espanola de Ceramica y Vidrio","volume":"62 3","pages":"Pages 204-219"},"PeriodicalIF":3.4,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49852273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yassine Et-Tayea , Achraf Harrati , Ahmed Rachid , Hicham Nasri , Ahmed Attou , Youssef Arkame , Ahmed Manni , Younes Mamouch , Abdeslam El Bouari , Faiçal El Khazanti , Chaouki Sadik
{"title":"Mineralogical and physico-chemical characterization of bentonite materials from the Oued Zemmour area (Oriental Rif, Nador-Morocco): Valorization in ceramic field","authors":"Yassine Et-Tayea , Achraf Harrati , Ahmed Rachid , Hicham Nasri , Ahmed Attou , Youssef Arkame , Ahmed Manni , Younes Mamouch , Abdeslam El Bouari , Faiçal El Khazanti , Chaouki Sadik","doi":"10.1016/j.bsecv.2022.03.001","DOIUrl":"10.1016/j.bsecv.2022.03.001","url":null,"abstract":"<div><p>The Oued Zemmour deposit is associated to Neogene volcanism in the Kert basin, Nador area (Morocco), and thus one of the numerous bentonite occurrences in the Gourougou volcano's region. To assess their potential use, this article examines the Oued Zemmour bentonite deposit, helping with mineralogical, physicochemical, morphological, geotechnical analyses and ceramic performances. Mineralogical associations are essentially made of montmorillonite, K-feldspars and plagioclase, associated with lower quantities of calcite, dolomite and quartz. The main chemical composition in oxides is SiO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub>. Geotechnical results show that the swelling index and Atterberg limits widely vary within the deposit, but all studied samples display high plastic and swelling qualities. The 10 representative bentonite samples of the area (Oz 1–Oz 10) were subjected to a ceramic technological assessment, and all samples have displayed good quality after dry pressing method and sintering at 1000<!--> <!-->°C without any defect or cracks (except for Oz 4, Oz 5, and Oz 8 samples). Therefore, two mixtures (Oz M and Oz M1) have been developed from the samples studied, using the same manufacturing protocol. The obtained ceramics were evaluated by studying their morphological structure and macroscopic aspect, as well as their bulk density, porosity, water absorption, shrinkage and tensile strength properties.</p></div>","PeriodicalId":56330,"journal":{"name":"Boletin de la Sociedad Espanola de Ceramica y Vidrio","volume":"62 3","pages":"Pages 268-283"},"PeriodicalIF":3.4,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49019140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Amador C. Caballero (Editor Jefe del Boletín de la Sociedad Española de Cerámica y Vidrio)
{"title":"XVI Reunión de Electrocerámica: adaptarse a los tiempos","authors":"Amador C. Caballero (Editor Jefe del Boletín de la Sociedad Española de Cerámica y Vidrio)","doi":"10.1016/j.bsecv.2023.06.001","DOIUrl":"https://doi.org/10.1016/j.bsecv.2023.06.001","url":null,"abstract":"","PeriodicalId":56330,"journal":{"name":"Boletin de la Sociedad Espanola de Ceramica y Vidrio","volume":"62 3","pages":"Page 203"},"PeriodicalIF":3.4,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49890812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sustainable glasses in the SiO2–P2O5–CaO–K2O system from waste and concentrated solar power","authors":"Maximina Romero , Isabel Padilla , Luisa Barbieri , Fernanda Andreola , Aurora López-Delgado","doi":"10.1016/j.bsecv.2021.12.004","DOIUrl":"https://doi.org/10.1016/j.bsecv.2021.12.004","url":null,"abstract":"<div><p>Sustainable glasses were prepared by green technology including the use of different wastes as raw materials and concentrated solar power (CSP) as renewable energy. The raw materials used to formulate the glasses were animal bone flour ash, which presents high contents of CaO, P<sub>2</sub>O<sub>5</sub> and alkaline oxides; glassy sand from the waste of packaging glass submitted to a primary treatment, composed principally of SiO<sub>2</sub>; and potassium carbonate of reagent grade. Different exposure times to solar radiation were tested. For comparison, the same composition of glass was melted into a conventional electric furnace. The use of CSP to produce glasses reduces the melting time by approximately 90%, with consequent energy savings. The increased CSP processing time results in more amorphous and thermally stable glasses. The results showed the viability of producing ecofriendly glasses in the SiO<sub>2</sub>–P<sub>2</sub>O<sub>5</sub>–CaO–K<sub>2</sub>O system, which could be used as matrix-based fertilizers.</p></div>","PeriodicalId":56330,"journal":{"name":"Boletin de la Sociedad Espanola de Ceramica y Vidrio","volume":"62 3","pages":"Pages 233-242"},"PeriodicalIF":3.4,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49852272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Contribution of vanadium particles to thermal movement of correlated two-dimensional pancake Abrikosov vortices in Bi-2223 superconducting system","authors":"Asaf Tolga Ulgen , Ümit Erdem , Gurcan Yildirim , Mustafa Burak Turkoz , Tahsin Turgay","doi":"10.1016/j.bsecv.2022.02.006","DOIUrl":"10.1016/j.bsecv.2022.02.006","url":null,"abstract":"<div><p>This article breaks new ground in understanding of variation in the magnetic strength performance, flux pinning and energy dissipation mechanism of polycrystalline bulk Bi<sub>1.8</sub>Sr<sub>2.0</sub>Ca<sub>2.2</sub>Cu<sub>3.0</sub>O<sub><em>y</em></sub> (Bi-2223) superconducting materials added with the different vanadium concentration level (0.0<!--> <!-->≤<!--> <em>x</em> <!-->≤<!--> <!-->0.30) under the magnetic field strengths applied up to 5<!--> <!-->T for the first time. We provide the sophisticated and phenomenological discussions on the magnetoresistivity measurement results in three main sections along the paper. All the findings show that the increase of both the vanadium concentration in the crystal structure and external magnetic field strength damages significantly the magnetic strength performance, vortex dynamics, flux pinning ability and vortex lattice elasticity of bulk Bi-2223 superconducting ceramics. The vanadium addition promotes thermally the movement of correlated two-dimensional (2D) pancake Abrikosov vortices between the in-plane Cu–O<sub>2</sub> layers in the valance band, vortex lattice elasticity, vortex dynamics, distance for interlayer Josephson couplings and flux pinning centers and the theoretical computations confirm the remarkable degradation in the formation of super-electrons in the Bi-2223 crystal system. Thus, the vanadium addition is anticipated to be one of the best selectable materials to examine the differentiation in the thermal movement of correlated 2D Pancake Abrikosov vortices in the bulk Bi-2223 superconducting system.</p></div>","PeriodicalId":56330,"journal":{"name":"Boletin de la Sociedad Espanola de Ceramica y Vidrio","volume":"62 3","pages":"Pages 257-267"},"PeriodicalIF":3.4,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48161755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carolina Clausell-Terol , Antonio Barba-Juan , Luis Nuño
{"title":"Sintered microstructure effect on RF-wave shielding properties of a Cu-doped Ni–Zn-polycrystalline ferrite","authors":"Carolina Clausell-Terol , Antonio Barba-Juan , Luis Nuño","doi":"10.1016/j.bsecv.2021.09.006","DOIUrl":"https://doi.org/10.1016/j.bsecv.2021.09.006","url":null,"abstract":"<div><p>The shielding properties of a Cu-doped Ni–Zn polycrystalline ferrite in the frequency range 1<!--> <!-->MHz to 1<!--> <!-->GHz were explored. Samples of composition (Cu<sub>0.12</sub>Ni<sub>0.23</sub>Zn<sub>0.65</sub>)Fe<sub>2</sub>O<sub>4</sub> were prepared by the traditional ceramic route. The complex relative permittivity (<span><math><mrow><msub><mi>ε</mi><mi>r</mi></msub><mo>=</mo><msup><mi>ε</mi><mo>′</mo></msup><mo>−</mo><mi>j</mi><msup><mi>ε</mi><mo>″</mo></msup></mrow></math></span>) and permeability (<span><math><mrow><msub><mi>μ</mi><mi>r</mi></msub><mo>=</mo><msup><mi>μ</mi><mo>′</mo></msup><mo>−</mo><mi>j</mi><msup><mi>μ</mi><mo>″</mo></msup></mrow></math></span>) of the absorber ceramics were measured, and the minimum reflection-loss <span><math><mrow><mi>R</mi><mi>L</mi></mrow></math></span>, matching frequency <span><math><mrow><msub><mi>f</mi><mi>m</mi></msub></mrow></math></span>, matching thickness <span><math><mrow><msub><mi>d</mi><mi>m</mi></msub></mrow></math></span> and bandwidth for <span><math><mrow><mtext>RL</mtext><mo>≤</mo><mo>−</mo><mn>20</mn><mtext></mtext><mtext>dB</mtext></mrow></math></span> were calculated using the theory of the absorbing wall. Effect of the main process parameters (pressing pressure <em>P</em>, sintering temperature <em>T</em>, and sintering time <em>t</em>) on the electromagnetic properties and microwave-absorbing characteristics was deeply investigated. The rise of the three selected process parameters was observed to improve the sintered microstructure of the final specimens (monitored by the relative density <span><math><mi>ϕ</mi></math></span> and the average grain size <em>G</em>), provided that abnormal grain growth does not occurred. The increase in sintered relative density and average grain growth modifies complex permeability and permittivity in the explored frequency range, enhancing the shielding properties of the material.</p></div>","PeriodicalId":56330,"journal":{"name":"Boletin de la Sociedad Espanola de Ceramica y Vidrio","volume":"62 2","pages":"Pages 108-122"},"PeriodicalIF":3.4,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49895490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nayarit A. Mata , Marcela Arango-Ospina , Pablo Velasquez , Angel Murciano , Piedad N. De Aza , Aldo R. Boccaccini
{"title":"Effect of Sr, Mg and Fe substitution on the physico-chemical and biological properties of SiCaP multilayer scaffolds","authors":"Nayarit A. Mata , Marcela Arango-Ospina , Pablo Velasquez , Angel Murciano , Piedad N. De Aza , Aldo R. Boccaccini","doi":"10.1016/j.bsecv.2021.11.005","DOIUrl":"10.1016/j.bsecv.2021.11.005","url":null,"abstract":"<div><p>In this work, a new combination of ceramic materials is proposed for bone tissue engineering applications. Multilayer scaffolds consisting of a core composed mainly of calcium pyrophosphate and external coatings of silica and calcium doped with Fe<sup>3+</sup>, Sr<sup>2+</sup> and Mg<sup>2+</sup> were prepared. To study the influence of the arrangement of dopant ions in the external coatings, two different scaffolds were developed: scaffolds 3J consisting of a single external coating with 9<!--> <!-->mol% of Fe<sup>3+</sup>, Sr<sup>2+</sup> and Mg<sup>2+</sup> ions; and scaffolds 3S comprising three external coatings, each containing 3<!--> <!-->mol% of Fe<sup>3+</sup>, Sr<sup>2+</sup> and Mg<sup>2+</sup> ions. Scaffolds were physico-chemically characterized and evaluated for <em>in vitro</em> bioactivity and cellular response in the presence of MG-63 cells. The results showed that the core scaffold displayed no <em>in vitro</em> bioactivity or good cellular response, but served as a support for the external coatings given its mechanical resistance. The cell viability of scaffolds 3J and 3S increased more than 100% in relation to the core, and also improved cell proliferation and adhesion resulting in a dense layer of cells that covered the scaffolds’ entire surface. The arrangement of ions in the external coatings did not influence the cellular response, but determined the bioactivity rate.</p></div>","PeriodicalId":56330,"journal":{"name":"Boletin de la Sociedad Espanola de Ceramica y Vidrio","volume":"62 2","pages":"Pages 145-159"},"PeriodicalIF":3.4,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49080456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Alkali-activated and hybrid materials: Alternative to Portland cement as a storage media for solar thermal energy","authors":"Irene Ramón-Álvarez , Carolina Marugán-Cruz , Esther Enríquez , Sergio Sánchez-Delgado , Manuel Torres-Carrasco","doi":"10.1016/j.bsecv.2021.11.006","DOIUrl":"https://doi.org/10.1016/j.bsecv.2021.11.006","url":null,"abstract":"<div><p>This study is part of the research line that sees it necessary to develop materials that are alternatives for Portland cement (PC), using industrial by-products such as blast furnace slag and fly ash. This line arises because of the serious environmental consequences suffered by our planet throughout many decades, which have led the cement industry to reduce the amount of CO<sub>2</sub> emitted in the production of PC, since it is a highly polluting process. The chemical and physical properties of the materials were studied. In this way, the study of the thermal properties is interesting to test the feasibility of the mortars to use them as solid media to storage thermal energy, since most of the research focus on the thermal properties of concrete is oriented toward fire resistance. Storing solar thermal energy improves the operation of solar power thermal plants. It is being studied that the use of concrete (composed of PC) contributes efficiently to concentrated solar power (CSP) technology. To avoid the use of PC due to environmental concerns, alkaline-activated mortars are manufactured with blast furnace slag using alkaline solutions such as sodium hydroxide (NaOH) and commercial sodium silicate (SiO<sub>2</sub>/Na<sub>2</sub>O<!--> <!-->=<!--> <!-->0.8), as well as hybrid mortars using 80% fly ash or blast furnace slag and 20% PC. After experimental analysis and a simulation to measure the conduction within the mortars through a commercial Computational Fluid Dynamic software (CFD, <em>ANSYS Fluent</em>), it can be concluded that the mechanical and thermal properties of most of the alternative mortars manufactured in this study are better than the ones obtained in the PC. Most notably, the slag alkaline-activated mortar increases those properties significantly.</p></div>","PeriodicalId":56330,"journal":{"name":"Boletin de la Sociedad Espanola de Ceramica y Vidrio","volume":"62 2","pages":"Pages 160-173"},"PeriodicalIF":3.4,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49895492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Publicar o perecer","authors":"Amador C. Caballero","doi":"10.1016/j.bsecv.2023.04.003","DOIUrl":"10.1016/j.bsecv.2023.04.003","url":null,"abstract":"","PeriodicalId":56330,"journal":{"name":"Boletin de la Sociedad Espanola de Ceramica y Vidrio","volume":"62 2","pages":"Page 107"},"PeriodicalIF":3.4,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48757664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Juan Jesús Martín-del-Río , Vicente Flores-Alés , Francisco José García Fernández , Victor Filipe , Violeta Moreno Megías , Lidia Fernandes
{"title":"Arqueometría de ánforas prerromanas procedentes de Lisboa (Portugal)","authors":"Juan Jesús Martín-del-Río , Vicente Flores-Alés , Francisco José García Fernández , Victor Filipe , Violeta Moreno Megías , Lidia Fernandes","doi":"10.1016/j.bsecv.2021.11.007","DOIUrl":"https://doi.org/10.1016/j.bsecv.2021.11.007","url":null,"abstract":"<div><p>In recent years, the existence of a dense pottery production in the Tagus estuary during the Iron Age, and specifically in the Lisbon area, has been highlighted. This was part of a process of economic intensification stimulated by the presence of phoenician traders. One of the most conspicuous products are amphorae containers, recently identified and classified from specimens recorded in different archaeological excavations. Imported amphorae, mostly from the south of the Iberian Peninsula, have also been found in the same contexts.</p><p>The aim of the present work is to further characterise these productions, both local and imported, through the analysis of 14 samples from excavations carried out on the slopes of the hill of Castelo de São Jorge in Lisbon. For this purpose, a petrographic study has been carried out through thin sections, as well as chemical (XRF) and mineralogical (XRD) analyses of all the sherds. A cluster analysis was applied to chemical data. In conclusion, a high degree of coincidence is observed in the results of these 3<!--> <!-->analyses and their coherence with the previous geographical and typological ascription, proposed on the basis of the macroscopic examination.</p></div>","PeriodicalId":56330,"journal":{"name":"Boletin de la Sociedad Espanola de Ceramica y Vidrio","volume":"62 2","pages":"Pages 174-186"},"PeriodicalIF":3.4,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49895493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}