Trinitat Pradell
Datos Biográficos
| ID | 633816 |
|---|---|
| NOMBRE | Trinitat Pradell |
| NOMBRES | Trinitat |
| APELLIDO | Pradell |
| FIRMA | PRADELL T |
| AFILIACIONES | Universitat Politècnica de Catalunya |
| ORCID | 0000-0002-8720-5492 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 38 |
| TOTAL DE CITAS | 348 |
| TOTAL COMO AUTOR | 38 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1991 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2026 |
| ÍNDICE H | 8 |
The Qal’a of Beni Ḥammād (medieval Algeria) and glaze technology
Glazed production in the Qal'a of Beni Ḥammād. • Use of tin-opacification technology in medieval Central Maghreb. • Wide range of glazing techniques and decorative methods used. • Presence of glazed ceramics produced outside of Qal’a. • New insights into the commercial and technological connections between the Hammadid capital and the Mediterranean. The Qal’a of Beni Ḥammād served as the capital of the Hammadids in the 11th century and constitute…
The medieval stained glass in Catalonia
13th and 14th century stained glass is of the potash lime type, similar to north-west France. • 15th century stained glass is of the potash-lime type, similar to north-eastern France. • 16th century stained glass is of the soda-lime type from Barcelona. • The production of stained glass moved from France to Barcelona at the end of the 15th century. The production and distribution of stained glass in Mediterranean Europe during the Middle Ages rem…
The ‘Dame de Sabra’
Characterisation of technology of Dame de Sabra esign ware with white background. • Polychrome glaze ware quartz opacified in medieval Tunisia during Fatimid period. • Technology of quartz opacification. The analysis of Fatimid polychrome white-opaque glazed ware found at the archaeological sites of Bir Ftouha and Utica (Ifriqiya) revealed that, contrary prevailing belief, the glazes were successfully opacified with quartz rather than tin oxide (…
The secret is quartz
A group of a well-known polychrome glazed ceramic, widespread in the western Mediterranean in the eleventh and first half of the twelfth centuries, has been analysed for the first time using Optical Microscopy (OM) and a Field Emission Scanning Electron Microscopy (FE-SEM) with Energy-Dispersive X-ray Spectroscopy (EDS), in order to shed some light on the materials, production technology and provenance, about which there are various hypotheses. T…
Continuity and innovation in glazed tableware consumption in North Africa from the Fatimid to Zirid periods
Excavations in the former Roman port of Utica (North Tunisia) by the University of Oxford and the INP (Tunisie) have revealed an area of medieval Islamic houses in the area of the Roman forum. Stratified sequences of pottery have established four main phases of occupation which would appear to span the mid-10th to mid-11th century. The range of glazed wares and other classes of pottery is summarised per phase and a detailed study of the glaze tec…
Del vidrio a la cerámica vidriada
En los últimos años se ha investigado la tecnología de producción del vidriado altomedieval en la Península Ibérica con el objetivo de comprender su origen, ya que, tras la época romana, la ceramica vidriada deja de producirse en Iberia. Para ello, se ha estudiado la cadena operativa en la producción de la cerámica vidriada en al-Andalus, concretamente en los primeros talleres donde se produjo, Pechina, Córdoba y Málaga (siglo IX). Aunque al prin…
An early example of glaze technology diffusion in North Africa
The three-tone system in Sant Climent de Taüll wall paintings
Medieval texts describe the use of the three-tone system as a pictorial procedure characteristic of Romanesque art to represent shape and volume. Some Medieval art treatises provide detailed instructions of its application, using specific names for each of the carnation colours: membrana (mid-tone or base colour), rosa and posc (darker) and lumen (lighter). In this study we have verified its use and application by analysing the mural paintings of…
Technological changes in the glazed wares of northern Tunisia in the transition from Fatimid to Zirid rule
Experimental study of historical processing of cobalt arsenide ore for colouring glazes (15-16th century Europe)
Cobalt was used since the early antiquity to tinge glass and glazes in blue. The presence of arsenic in blue decorated glazes since ~1500 onwards and absence beforehand, observed in Europe, might be related to the processing of the ore: roasting of the cobalt mineral (saffre) and obtaining a glass adding sand and potash (smalt) or as by-product of other metallurgical processes, e.g. silver smelting slag. We have replicated the roasting of cobalt …
From Glass to Glaze in al-Andalus
It has long been assumed that lead glazing technology preceded glassmaking in the Western world and that the technological transfer was from glazes to glass. Here, we present new evidence for the reverse, the indigenous innovation of glassmaking and its transfer to glazes in early Islamic al-Andalus (Spain). Compositional analyses show that Islamic lead glazes from Córdoba are intimately related to a distinct type of high-lead glass, suggesting a…
Polychrome glazed ware production in Tunisia during the Fatimid-Zirid period
Islamic glazed wares from ancient Termez (southern Uzbekistan). Raw materials and techniques
Revisando las primeras producciones vidriadas islámicas cordobesas a la luz de la arqueometría
En este artículo se propone una revisión de las primeras cerámicas vidriadas andalusíes. A partir de análisis arqueométricos se caracterizan los primeros vidriados, se tratan los problemas de conservación y alteración de estas producciones y se identifican las diferentes tradiciones tecnológicas que convivieron a finales del emirato en Córdoba. Además se buscan las conexiones tecnológicas con otros territorios islámicos y bizantinos
The introduction of the glaze in al-Andalus
This research develops a much-needed approach to the study of glazed ware production in al-Andalus (Muslim Spain and Portugal) during the early Middle Ages. The introduction of glaze to the Iberian Peninsula was a long and complex process involving three waves of technology transfer arriving from the eastern Islamic regions between the ninth and eleventh centuries. In this paper, the main glaze workshops of each technological wave have been chara…
Madīnat al-Zahrā' or Madīnat Qurtuba? First evidences of the Caliphate tin glaze production of 'verde y manganeso' ware
Ceramic technology. How to characterise ceramic glazes
From tin- to antimony-based yellow opacifiers in the early Islamic Egyptian glazes
Glaze production at an early Islamic workshop in al-Andalus
Tracing the tin-opacified yellow glazed ceramics in the western Islamic world
A small group of opaque yellow glazed sherds has recently been identified among the ceramics excavated at the Islamic city of Madinat al-Zahra’ near Cordoba, in al-Andalus (southern Spain), which was founded in 936 AD as the seat of the Umayyad Caliphate power. A small group of sherds from Madinat al-Zahra’, which can be dated to about 960-980 AD, has been examined in polished section in a SEM with EDS attached. These analyses have established th…
The transition from lead transparent to tin-opacified glaze productions in the western Islamic lands
Technological implications of neo-formed hematite crystals in ceramic lead glazes
Hexagonal neo-formed crystallites have been observed in thin section of different medieval and post-medieval lead-glazed ceramics. Although they are clearly visible in thin section using plane polarized light, their plate shape makes them barely seen on the polished cross sections. Basal sections have never been found on the polished sections and only few transversal very thin sections could be seen. In this case, the morphology resembles acicula…
Glazes, colourants and decorations in early Islamic glazed ceramics from the Vega of Granada (9th to 12th centuries CE)
The Glaze Technology of Hispano‐Moresque Ceramic Tiles
For the first time, Hispano‐Moresque glazed tiles from Portuguese and Spanish collections were studied together and compared. This work is included in a wider study tackling the technology of Hispano‐Moresque tile production from several collections in the Iberian Peninsula. While showing many similarities, differences were identified between collections, regarding both chemical and morphological characteristics. The collection from the Mosteiro …
Production technology of Nabataean painted pottery compared with that of Roman terra sigillata
Discovery, Production and Use of Tin‐based Opacifiers in Glasses, Enamels and Glazes From the Late Iron Age Onwards
Tin‐based opacifiers (lead stannate yellow and tin oxide white) were first used in glass production for a short period in Europe from the second to the first centuries bc , and then again throughout the Roman and Byzantine Empires from the fourth century ad onwards. Tin oxide was also used in the production of Islamic opaque glazes from the ninth century ad , and subsequently in enamels applied to Islamic and Venetian glasses from the 12th centur…
Ceramic technology. How to characterise ceramic glazes
Revisiting the beginnings of tin-opacified Islamic glazes
Production technology and replication of lead antimonate yellow glass from New Kingdom Egypt and the Roman Empire
The transition from lead transparent to tin-opacified glaze productions in the western Islamic lands
Glaze production at an early Islamic workshop in al-Andalus
Technology and Colour Development of Hispano‐moresque Lead‐glazed Pottery
Lead‐glazed pottery from the medieval workshop of Les Olleries Majors (Paterna, Spain) has been studied by Mössbauer spectroscopy, X‐ray diffraction, X‐ray fluorescence and optical spectroscopy. Yellow, brown and honey‐coloured glazes occur on pots glazed on only one surface. They have virtually identical compositions and transmittance spectra, their apparent differences in colour are due to the colours of the underlying pastes. Yellow glazes occ…
Early Islamic lustre from Egypt, Syria and Iran (10th to 13th century AD)
Tracing the tin-opacified yellow glazed ceramics in the western Islamic world
A small group of opaque yellow glazed sherds has recently been identified among the ceramics excavated at the Islamic city of Madinat al-Zahra’ near Cordoba, in al-Andalus (southern Spain), which was founded in 936 AD as the seat of the Umayyad Caliphate power. A small group of sherds from Madinat al-Zahra’, which can be dated to about 960-980 AD, has been examined in polished section in a SEM with EDS attached. These analyses have established th…
The invention of lustre
Proto‐campanian and A‐campanian Ceramics
Technological changes in the glazed wares of northern Tunisia in the transition from Fatimid to Zirid rule
From Glass to Glaze in al-Andalus
It has long been assumed that lead glazing technology preceded glassmaking in the Western world and that the technological transfer was from glazes to glass. Here, we present new evidence for the reverse, the indigenous innovation of glassmaking and its transfer to glazes in early Islamic al-Andalus (Spain). Compositional analyses show that Islamic lead glazes from Córdoba are intimately related to a distinct type of high-lead glass, suggesting a…
Potters and pigments
Madīnat al-Zahrā' or Madīnat Qurtuba? First evidences of the Caliphate tin glaze production of 'verde y manganeso' ware
From tin- to antimony-based yellow opacifiers in the early Islamic Egyptian glazes
Glazes, colourants and decorations in early Islamic glazed ceramics from the Vega of Granada (9th to 12th centuries CE)
The introduction of the glaze in al-Andalus
This research develops a much-needed approach to the study of glazed ware production in al-Andalus (Muslim Spain and Portugal) during the early Middle Ages. The introduction of glaze to the Iberian Peninsula was a long and complex process involving three waves of technology transfer arriving from the eastern Islamic regions between the ninth and eleventh centuries. In this paper, the main glaze workshops of each technological wave have been chara…
Experimental study of historical processing of cobalt arsenide ore for colouring glazes (15-16th century Europe)
Cobalt was used since the early antiquity to tinge glass and glazes in blue. The presence of arsenic in blue decorated glazes since ~1500 onwards and absence beforehand, observed in Europe, might be related to the processing of the ore: roasting of the cobalt mineral (saffre) and obtaining a glass adding sand and potash (smalt) or as by-product of other metallurgical processes, e.g. silver smelting slag. We have replicated the roasting of cobalt …
Lustre Recipes from A Medieval Workshop in Paterna
The discovery of the workshop ‘Les Olleries Xiques’ in Paterna has provided a unique opportunity to analyse the raw materials, and in particular the recipes used in the production of the lustre decorations. Chemical and phase analyses of lustre raw materials and of lustre decorations belonging to the workshop pottery are shown. A comparison with existing ancient documentation on lustre recipes is also presented
Hispano‐moresque Pottery Production of the Fourteenth‐century Workshop of Testar Del Molí (Paterna, Spain)
Excavation of Testar del Molí, the only workshop found in the Manises‐Paterna area, revealed the existence of a fourteenth‐century ceramic workshop covering the remains of the thirteenth‐century workshop. This study is concerned with the fourteenth‐century production, and forthcoming papers will connect both epochs following the findings of current excavations. The chemical and mineralogical characterization of the ceramic production of this work…
The secret is quartz
A group of a well-known polychrome glazed ceramic, widespread in the western Mediterranean in the eleventh and first half of the twelfth centuries, has been analysed for the first time using Optical Microscopy (OM) and a Field Emission Scanning Electron Microscopy (FE-SEM) with Energy-Dispersive X-ray Spectroscopy (EDS), in order to shed some light on the materials, production technology and provenance, about which there are various hypotheses. T…
An early example of glaze technology diffusion in North Africa
The three-tone system in Sant Climent de Taüll wall paintings
Medieval texts describe the use of the three-tone system as a pictorial procedure characteristic of Romanesque art to represent shape and volume. Some Medieval art treatises provide detailed instructions of its application, using specific names for each of the carnation colours: membrana (mid-tone or base colour), rosa and posc (darker) and lumen (lighter). In this study we have verified its use and application by analysing the mural paintings of…
The Glaze Technology of Hispano‐Moresque Ceramic Tiles
For the first time, Hispano‐Moresque glazed tiles from Portuguese and Spanish collections were studied together and compared. This work is included in a wider study tackling the technology of Hispano‐Moresque tile production from several collections in the Iberian Peninsula. While showing many similarities, differences were identified between collections, regarding both chemical and morphological characteristics. The collection from the Mosteiro …
Proto‐campanian and A‐campanian Ceramics
Hispano‐moresque Pottery Production of the Fourteenth‐century Workshop of Testar Del Molí (Paterna, Spain)
Excavation of Testar del Molí, the only workshop found in the Manises‐Paterna area, revealed the existence of a fourteenth‐century ceramic workshop covering the remains of the thirteenth‐century workshop. This study is concerned with the fourteenth‐century production, and forthcoming papers will connect both epochs following the findings of current excavations. The chemical and mineralogical characterization of the ceramic production of this work…
Technology and Colour Development of Hispano‐moresque Lead‐glazed Pottery
Lead‐glazed pottery from the medieval workshop of Les Olleries Majors (Paterna, Spain) has been studied by Mössbauer spectroscopy, X‐ray diffraction, X‐ray fluorescence and optical spectroscopy. Yellow, brown and honey‐coloured glazes occur on pots glazed on only one surface. They have virtually identical compositions and transmittance spectra, their apparent differences in colour are due to the colours of the underlying pastes. Yellow glazes occ…
Interactions between Clay Bodies and Lead Glazes
A set of laboratory experiments has been developed to determine the nature and importance of the interaction between clay bodies and lead glazes during firing following different thermal paths (firing time and temperature, cooling rates) and using different glaze compositions and different bodies (illitic, kaolinitic, and calcareous clays). It is shown that the interaction consists of a digestion/diffusion process. This process involves (i) decom…
Lustre Recipes from A Medieval Workshop in Paterna
The discovery of the workshop ‘Les Olleries Xiques’ in Paterna has provided a unique opportunity to analyse the raw materials, and in particular the recipes used in the production of the lustre decorations. Chemical and phase analyses of lustre raw materials and of lustre decorations belonging to the workshop pottery are shown. A comparison with existing ancient documentation on lustre recipes is also presented
The invention of lustre
Discovery, Production and Use of Tin‐based Opacifiers in Glasses, Enamels and Glazes From the Late Iron Age Onwards
Tin‐based opacifiers (lead stannate yellow and tin oxide white) were first used in glass production for a short period in Europe from the second to the first centuries bc , and then again throughout the Roman and Byzantine Empires from the fourth century ad onwards. Tin oxide was also used in the production of Islamic opaque glazes from the ninth century ad , and subsequently in enamels applied to Islamic and Venetian glasses from the 12th centur…
Technology of Islamic lustre
Early Islamic lustre from Egypt, Syria and Iran (10th to 13th century AD)
Potters and pigments
Production technology and replication of lead antimonate yellow glass from New Kingdom Egypt and the Roman Empire
Revisiting the beginnings of tin-opacified Islamic glazes
Production technology of Nabataean painted pottery compared with that of Roman terra sigillata
Composition of the Lustre Pigment Used in the Production Of 13th Century AD Raqqa Lustreware from Syria
The very rare find of the relic of the original lustre pigment attached to the glazed surface of a sherd of 13th century ad Raqqa type lustreware from Syria has been analysed using a combination of analytical scanning electron microscopy (SEM), micro-X-ray diffraction (XRD) and Rutherford backscattering spectroscopy (RBS). The composition of the pigment relic inferred from these analyses is shown to match those of recipes for lustre production gi…
Technological implications of neo-formed hematite crystals in ceramic lead glazes
Hexagonal neo-formed crystallites have been observed in thin section of different medieval and post-medieval lead-glazed ceramics. Although they are clearly visible in thin section using plane polarized light, their plate shape makes them barely seen on the polished cross sections. Basal sections have never been found on the polished sections and only few transversal very thin sections could be seen. In this case, the morphology resembles acicula…
Glazes, colourants and decorations in early Islamic glazed ceramics from the Vega of Granada (9th to 12th centuries CE)
The Glaze Technology of Hispano‐Moresque Ceramic Tiles
For the first time, Hispano‐Moresque glazed tiles from Portuguese and Spanish collections were studied together and compared. This work is included in a wider study tackling the technology of Hispano‐Moresque tile production from several collections in the Iberian Peninsula. While showing many similarities, differences were identified between collections, regarding both chemical and morphological characteristics. The collection from the Mosteiro …
The transition from lead transparent to tin-opacified glaze productions in the western Islamic lands
From tin- to antimony-based yellow opacifiers in the early Islamic Egyptian glazes
Glaze production at an early Islamic workshop in al-Andalus
Tracing the tin-opacified yellow glazed ceramics in the western Islamic world
A small group of opaque yellow glazed sherds has recently been identified among the ceramics excavated at the Islamic city of Madinat al-Zahra’ near Cordoba, in al-Andalus (southern Spain), which was founded in 936 AD as the seat of the Umayyad Caliphate power. A small group of sherds from Madinat al-Zahra’, which can be dated to about 960-980 AD, has been examined in polished section in a SEM with EDS attached. These analyses have established th…
Polychrome glazed ware production in Tunisia during the Fatimid-Zirid period
Islamic glazed wares from ancient Termez (southern Uzbekistan). Raw materials and techniques
Revisando las primeras producciones vidriadas islámicas cordobesas a la luz de la arqueometría
En este artículo se propone una revisión de las primeras cerámicas vidriadas andalusíes. A partir de análisis arqueométricos se caracterizan los primeros vidriados, se tratan los problemas de conservación y alteración de estas producciones y se identifican las diferentes tradiciones tecnológicas que convivieron a finales del emirato en Córdoba. Además se buscan las conexiones tecnológicas con otros territorios islámicos y bizantinos
The introduction of the glaze in al-Andalus
This research develops a much-needed approach to the study of glazed ware production in al-Andalus (Muslim Spain and Portugal) during the early Middle Ages. The introduction of glaze to the Iberian Peninsula was a long and complex process involving three waves of technology transfer arriving from the eastern Islamic regions between the ninth and eleventh centuries. In this paper, the main glaze workshops of each technological wave have been chara…
Cultural Heritage Materials Analysis (34 obras) · Materials Science (24 obras) · Building materials and conservation (23 obras) · History (22 obras) · Archaeology (21 obras) · Art (21 obras) · Metallurgy (20 obras) · Glaze (18 obras) · History (17 obras) · Ceramic (16 obras)