Glazed ware

Duffy, K. I., Carlson, J. EL, and Swann, C. P. (2002). A study of green-glazed ware from England and South Carolina, USA (1760-1780). Nuclear Instruments and Methods in Physics Research B 189 369-372. 

Wolff, S. R., Liddy, D. J., Newton, G. W. A., Robinson, Y. J., and Smith, R. J. (1986). Classical and Hellenistic black glaze ware in the Mediterranean - a study by epithermal neutron-activation analysis. Journal of Archaeological Science 13 245-259. 

The common potter s clays in England are found in layers or strata lying over each other, each stratum possessing some distinctive property which fits it for a peculiar purpose. That-which is called the sandy stiff, or ball-clay, is the upper layer, and from the considerable quantity of silica it contaios is used for making salt-glazed ware. On analysis this clay, dried at 212°, will be found to yield —-... 

Figure 5. Black glaze ware from Hesi fitting the same Aegean pattern, except GZ42 which is a yellow paste with elemental pattern slightly different from the Aegean pattern...

This final firing results in the stage known as glazed ware. The clay piece is an adult. It can live for hundreds of years with proper care. Death occurs only when someone is careless and mishandles the clay piece. Being dropped is a common cause of death. 

Soft-paste porcelain Hard-paste pcacelain Tin-glazed ware Jasperware Stoneware... 

Fireclays of widely varying composition occur, and are concentrated in the Leeds and Halifax districts. Many of them provide high-quality refractory bricks others, which are less refractory, are used for making salt-glazed ware and drain-pipes. Somewhat less refractory fireclays of a more siliceous nature are obtained from the Huddersfield and Sheffield districts. The pot clay seam in the Stannington area of South Yorkshire, a Carboniferous clay mined by opencast methods, is used for casting pit ware and grog production. 

FIGURE 2.4 The flow of ceramic history illustrates the mainstreams of earthenware, terra cotta, and stoneware, of triaxial hard-paste porcelain, of quartz-based bodies, and of tin-glazed ware. Some important shaping and decorative techniques are illustrated, but the diagram is far from complete. 

With LA, MC-ICP-MS isotope ratio measurements can be performed in just a few minutes per sample as compared with the several hours per sample required for TIMS analysis. In addition, LA-MC-ICP-MS can yield spatially resolved isotope ratio characterization. Thus, provenance studies of ceramic paints, glazes, and slips in situ by LA-MC-ICP-MS measurement of lead and/or other isotope ratios are obvious areas for future development. Hints of the potential of this approach are highlighted in a recent study by Huntley [74], which showed that interaction on different spatial scales can be detected via elemental analysis of paste together with lead isotope analysis of glaze paints on Zuni glazed wares. 

Bat Printing. A former method of decorating pottery it was first used, in Stoke-on-Trent, by W. Baddeley in 1777. A bat of solid glue or gelatine was used to transfer the pattern, in oil, from an engraved copper plate to the glazed ware, colour then being dusted on. The process was still in use in 1890 and has now been developed into the murray-... 

Dorfner Test. A test for stress in glazed ware proposed by J. Dorfner (Sprechsaal, 47, 523,1914) a cylinder of the ware is partly glazed and the shrinkage of the glazed portion is noted. 

Such kilns found particular use in the firing of refractories and salt-glazed ware. 

Vitroceramic. One of several terms proposed for the type of ceramic product formed by the controlled devitrification of a glass see glass ceramic. Vitroderm. Sections of glazed ware prepared for microscopic examination, by grinding away the body from below the glaze. The term, which means glass skin was coined by F. Smithson Trans. Br. Ceram. Soc. 47,191,1948). 

We report a new nondestructive technique using EDTA extraction and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to measure lead isotope ratios among majolica sherds from six 18 century presidios in northern New Spain. Our preliminary results support previous archaeological and chemical studies that suggest one or two production centers as the source of majolica found in New Spain. This research has broad relevance for research on lead-glazed wares, and raises specific questions regarding the production and distribution of majolica in 18 century New Spain. 

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