Thermal profiles in varied experimental firings: Implications for different clays and archaeomagnetism

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Thermal profiles in varied experimental firings: Implications for different clays and archaeomagnetism. / Kostadinova-Avramova, Maria; Dimitrov, Petar; Костеров, Андрей Александрович.

в: Archaeometry, Том 67, № 2, 2025, стр. 344-363.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{a4c45ff931c145fd8b4fecd590f4ece4,

title = "Thermal profiles in varied experimental firings: Implications for different clays and archaeomagnetism",

abstract = "Thermal profiles of 16 firings performed under various experimental conditions are investigated and compared, with special attention to cooling due to its significance in archaeomagnetism. Samples of different shapes and sizes handmade from six starting clays were fired once and repeatedly followed by magnetic measurements. The collected experimental data provide a broader view of the relationships among firing conditions, clay composition, and final ceramic products.According to direct measurements, open hearths and kilns reach very similar temperatures (800–900°C). Firing temperature and soaking time tend to be linearly related at temperatures around and above 700°C. Soaking time appears to be independent of the structure type around and above 800°C but not below 600°C. Heating rates and times are related exponentially. Only the cooling process distinguishes {\textquoteright}open{\textquoteright} and {\textquoteright}kiln{\textquoteright} firing, with kiln insulation being the primary factor controlling all thermal parameters. A possible relationship between cooling and fuel type is suggested. Cooling in open hearths and kilns differs from that in laboratory furnaces.The magnetic profiles obtained for various clays highlight the differences in composition, grain size, and thermal stability; increasing the number of firings reduces these later.",

keywords = "clay magnetism, combustion structure, cooling rate, experimental firing",

author = "Maria Kostadinova-Avramova and Petar Dimitrov and Костеров, {Андрей Александрович}",

year = "2025",

doi = "10.1111/arcm.13012",

language = "English",

volume = "67",

pages = "344--363",

journal = "Archaeometry",

issn = "0003-813X",

publisher = "Wiley-Blackwell",

number = "2",

}

RIS

TY - JOUR

T1 - Thermal profiles in varied experimental firings: Implications for different clays and archaeomagnetism

AU - Kostadinova-Avramova, Maria

AU - Dimitrov, Petar

AU - Костеров, Андрей Александрович

PY - 2025

Y1 - 2025

N2 - Thermal profiles of 16 firings performed under various experimental conditions are investigated and compared, with special attention to cooling due to its significance in archaeomagnetism. Samples of different shapes and sizes handmade from six starting clays were fired once and repeatedly followed by magnetic measurements. The collected experimental data provide a broader view of the relationships among firing conditions, clay composition, and final ceramic products.According to direct measurements, open hearths and kilns reach very similar temperatures (800–900°C). Firing temperature and soaking time tend to be linearly related at temperatures around and above 700°C. Soaking time appears to be independent of the structure type around and above 800°C but not below 600°C. Heating rates and times are related exponentially. Only the cooling process distinguishes ’open’ and ’kiln’ firing, with kiln insulation being the primary factor controlling all thermal parameters. A possible relationship between cooling and fuel type is suggested. Cooling in open hearths and kilns differs from that in laboratory furnaces.The magnetic profiles obtained for various clays highlight the differences in composition, grain size, and thermal stability; increasing the number of firings reduces these later.

AB - Thermal profiles of 16 firings performed under various experimental conditions are investigated and compared, with special attention to cooling due to its significance in archaeomagnetism. Samples of different shapes and sizes handmade from six starting clays were fired once and repeatedly followed by magnetic measurements. The collected experimental data provide a broader view of the relationships among firing conditions, clay composition, and final ceramic products.According to direct measurements, open hearths and kilns reach very similar temperatures (800–900°C). Firing temperature and soaking time tend to be linearly related at temperatures around and above 700°C. Soaking time appears to be independent of the structure type around and above 800°C but not below 600°C. Heating rates and times are related exponentially. Only the cooling process distinguishes ’open’ and ’kiln’ firing, with kiln insulation being the primary factor controlling all thermal parameters. A possible relationship between cooling and fuel type is suggested. Cooling in open hearths and kilns differs from that in laboratory furnaces.The magnetic profiles obtained for various clays highlight the differences in composition, grain size, and thermal stability; increasing the number of firings reduces these later.

KW - clay magnetism

KW - combustion structure

KW - cooling rate

KW - experimental firing

UR - https://www.mendeley.com/catalogue/163ed5ff-cb10-3068-9619-5f2ec15f5c34/

U2 - 10.1111/arcm.13012

DO - 10.1111/arcm.13012

M3 - Article

VL - 67

SP - 344

EP - 363

JO - Archaeometry

JF - Archaeometry

SN - 0003-813X

IS - 2

ER -

ID: 133779056