TY - JOUR

T1 - Thermoanalytical investigations of ancient ceramics

T2 - Review on theory and practice

AU - Drebushchak, V. A.

AU - Mylnikova, L. N.

AU - Drebushchak, T. N.

PY - 2018/7/1

Y1 - 2018/7/1

N2 - The review consists of four parts. Part I is about the thermal transformation in clay minerals under firing and about the properties of fired clay. The transformations in the clay are expressed quantitatively with the extent of conversion, α, which is the function of two parameters of firing process, time t and temperature T: α = f(t, T). Part II is about the estimation of firing temperature after the analysis of the products of firing clays. All the estimations are speculative, without mathematical equations. It is impossible to derive the value of only one variable T from α = f(t,T), the function of two variables. Part III is about the long-term inverse transformation in fired ceramic paste under ambient conditions. The mass gain as a function of time is used for the evaluation of the time elapsed from the ancient firing, t. Part IV is about the visualization of the extent of conversion of the clay in the paste after all direct and reverse reactions, i.e., α.

AB - The review consists of four parts. Part I is about the thermal transformation in clay minerals under firing and about the properties of fired clay. The transformations in the clay are expressed quantitatively with the extent of conversion, α, which is the function of two parameters of firing process, time t and temperature T: α = f(t, T). Part II is about the estimation of firing temperature after the analysis of the products of firing clays. All the estimations are speculative, without mathematical equations. It is impossible to derive the value of only one variable T from α = f(t,T), the function of two variables. Part III is about the long-term inverse transformation in fired ceramic paste under ambient conditions. The mass gain as a function of time is used for the evaluation of the time elapsed from the ancient firing, t. Part IV is about the visualization of the extent of conversion of the clay in the paste after all direct and reverse reactions, i.e., α.

KW - Ancient ceramics

KW - Firing temperature

KW - Kinetics

KW - Porosity

KW - Thermogravimetry

KW - IRON-AGE SITE

KW - POTTERY FIRING TEMPERATURES

KW - PROBABLE INDUSTRIAL ORIGIN

KW - X-RAY-DIFFRACTION

KW - POROUS BUILDING-MATERIALS

KW - CALCIUM-CARBONATE

KW - DIFFERENTIAL THERMAL-ANALYSIS

KW - MULLITE REACTION SEQUENCE

KW - MASS-GAIN CURVES

KW - FIRED-CLAY CERAMICS

UR - http://www.scopus.com/inward/record.url?scp=85045422853&partnerID=8YFLogxK

U2 - 10.1007/s10973-018-7244-5

DO - 10.1007/s10973-018-7244-5

M3 - Article

AN - SCOPUS:85045422853

VL - 133

SP - 135

EP - 176

JO - Journal of Thermal Analysis and Calorimetry

JF - Journal of Thermal Analysis and Calorimetry

SN - 1388-6150

IS - 1

ER -