Medarbejdervisning: Black coal cinder ceramics: an unusual technological choice in Sichuan Province, China

Black coal cinder ceramics: an unusual technological choice in Sichuan Province, China

In Sichuan Province, China, many workshops on the historic pottery street of Yingjing and one small one in Gaoxian produce black pottery by adding ground coal cinders to their clay. This unique raw material is fired with a kiln design and process that are also unique. Coarse-grained cooking products...

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Udgivet i:	URI:https://journals.openedition.org/techne,
Hovedforfatter:	Reedy, Chandra L.
Format:	Article ou chapitre numérique
Sprog:	Anglais
Udgivet:	Technè 2023
Fag:	ceramics China porosity black pottery coal cinders Sichuan thin-section analysis micro-CT 3D image analysis ceramic pore systems céramique Chine porosité poterie noire cendres de charbon pétrographie microtomographie de rayons X analyse d’images 3D systèmes poreux
Online adgang:	Accès Université d'Orléans et IFPM Accès Université d'Orléans et IFPM

id	openedition-oai:revues.org:techne_17263
record_format	openedition
spelling	openedition-oai:revues.org:techne_17263 https://doi.org/10.4000/techne.17263 urn:doi:10.4000/techne.17263 en https://journals.openedition.org/techne/17263 2023-11-23T01:00:00Z info:eu-repo/semantics/openAccess article info:eu-repo/semantics/article urn:handle:20.500.13089/l8oc https://creativecommons.org/licenses/by-nc-nd/4.0/ Black coal cinder ceramics: an unusual technological choice in Sichuan Province, China Technè C2RMF info:eu-repo/semantics/reference/issn/2750-6185 info:eu-repo/semantics/reference/issn/1254-7867 URI:https://journals.openedition.org/techne Reedy, Chandra L. ceramics China porosity black pottery coal cinders Sichuan thin-section analysis micro-CT 3D image analysis ceramic pore systems céramique Chine porosité poterie noire cendres de charbon Sichuan pétrographie microtomographie de rayons X analyse d’images 3D systèmes poreux In Sichuan Province, China, many workshops on the historic pottery street of Yingjing and one small one in Gaoxian produce black pottery by adding ground coal cinders to their clay. This unique raw material is fired with a kiln design and process that are also unique. Coarse-grained cooking products are most common, but fine-grained teawares and other new product lines recently emerged in Yingjing to meet new market niches. High-temperature phases such as mullite, cristobalite, and glass seen in thin sections primarily reflect those also seen in the coal cinders. The volume of closed and open pores and the structure of pore systems differ for coarse versus fine wares and are well suited for intended product functions. Variation in pore systems for Yingjing coarse wares indicates subtle differences in raw materials, materials preparation, and firing temperatures between workshops and within each workshop’s numerous production runs and products compared with the sole Gaoxian small workshop with very limited products. Dans la province du Sichuan, en Chine, de nombreux ateliers de céramique installés dans l’historique rue des potiers de Yingjing, de même qu’un petit atelier de Gaoxian, produisent des céramiques noires grâce à l’ajout de cendres de charbon broyées à leur argile. Cette matière première unique en son genre est cuite dans un four dont la conception et le procédé de cuisson sont également très spécifiques. Les produits de cuisson à grains grossiers sont les plus communs, mais des services à thé à pâte fine et des lignes de produits inédites ont récemment vu le jour à Yingjing pour répondre aux besoins de nouveaux créneaux du marché. Les phases minérales haute température telles que mullite, cristobalite et verre observées dans des lames minces reflètent principalement celles également repérées dans les cendres de charbon. Le volume des pores fermés et ouverts et la structure des systèmes poreux diffèrent selon qu’il s’agit de céramiques à grains grossiers ou fins et sont bien adaptés aux fonctions auxquelles ces produits sont destinés. La variabilité des systèmes de pores dans le cas des céramiques à grains grossiers de Yingjing signale l’existence de différences subtiles sur le plan des matières premières, de la préparation des matériaux et des températures de cuisson, entre les ateliers ainsi que dans les nombreux cycles de production et produits de chaque atelier, par comparaison avec l’unique petit atelier de Gaoxian dont la production demeure très limitée.
collection	OpenEdition Journal
language	Anglais
format	Article ou chapitre numérique
building	0/Bibliothèque numérique/ 1/Bibliothèque numérique/OpenEdition Journals/
topic	ceramics China porosity black pottery coal cinders Sichuan thin-section analysis micro-CT 3D image analysis ceramic pore systems céramique Chine porosité poterie noire cendres de charbon Sichuan pétrographie microtomographie de rayons X analyse d’images 3D systèmes poreux
spellingShingle	ceramics China porosity black pottery coal cinders Sichuan thin-section analysis micro-CT 3D image analysis ceramic pore systems céramique Chine porosité poterie noire cendres de charbon Sichuan pétrographie microtomographie de rayons X analyse d’images 3D systèmes poreux Reedy, Chandra L. Black coal cinder ceramics: an unusual technological choice in Sichuan Province, China
description	In Sichuan Province, China, many workshops on the historic pottery street of Yingjing and one small one in Gaoxian produce black pottery by adding ground coal cinders to their clay. This unique raw material is fired with a kiln design and process that are also unique. Coarse-grained cooking products are most common, but fine-grained teawares and other new product lines recently emerged in Yingjing to meet new market niches. High-temperature phases such as mullite, cristobalite, and glass seen in thin sections primarily reflect those also seen in the coal cinders. The volume of closed and open pores and the structure of pore systems differ for coarse versus fine wares and are well suited for intended product functions. Variation in pore systems for Yingjing coarse wares indicates subtle differences in raw materials, materials preparation, and firing temperatures between workshops and within each workshop’s numerous production runs and products compared with the sole Gaoxian small workshop with very limited products.
author	Reedy, Chandra L.
author_facet	Reedy, Chandra L.
author_sort	Reedy, Chandra L.
title	Black coal cinder ceramics: an unusual technological choice in Sichuan Province, China
title_short	Black coal cinder ceramics: an unusual technological choice in Sichuan Province, China
title_full	Black coal cinder ceramics: an unusual technological choice in Sichuan Province, China
title_fullStr	Black coal cinder ceramics: an unusual technological choice in Sichuan Province, China
title_full_unstemmed	Black coal cinder ceramics: an unusual technological choice in Sichuan Province, China
title_sort	black coal cinder ceramics: an unusual technological choice in sichuan province, china
publisher	Technè
publishDate	2023
container_title	URI:https://journals.openedition.org/techne
url	https://ezproxy.univ-orleans.fr/login?url=https://doi.org/10.4000/techne.17263 https://ezproxy.univ-orleans.fr/login?url=https://journals.openedition.org/techne/17263
_version_	1877292614941671424

Black coal cinder ceramics: an unusual technological choice in Sichuan Province, China

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