Causes of defects in historical ceramic materials with Ca-rich body

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43928336" target="_blank" >RIV/60461373:22310/23:43928336 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22810/23:43928336

Výsledek na webu

<a href="https://www2.irsm.cas.cz/materialy/cs_content/2023_doi/Dvorakova_CS_2023_0039.pdf" target="_blank" >https://www2.irsm.cas.cz/materialy/cs_content/2023_doi/Dvorakova_CS_2023_0039.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.13168/cs.2023.0039" target="_blank" >10.13168/cs.2023.0039</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Causes of defects in historical ceramic materials with Ca-rich body

Popis výsledku v původním jazyce

The aim of the present work was to study and identify the causes and sources of defects in the glazes and decorations of archaeological ceramics containing a calcium component. As part of systematic archaeological research in the Hrad &amp; ccaron;any area, several reconstructable objects and some fragmentary sherds of archaeological ceramics with a relatively high calcium content were found. Seven objects of faience were rescued from the waste pits on the premises of the third courtyard of the Prague Castle, a flower pot was found in Lumbe garden, and creamware sherds were excavated from a waste pit between the Salm and Schwarzenberg palaces on Hrad &amp; ccaron;any Square. The first step of the research was the evaluation of ceramic bodies, glazes, and decorations using archaeometric methods. Subsequently, dilatometric measurements of cera-mic bodies and stress state calculations of ceramic body-glaze, or glaze-decor systems were used to identify the sources of defects observed on archaeological finds. Both primary and secondary defects were identified in all studied finds. Among the primary defects, pinholes and blisters predominated. As secondary defects, crazing, blackening, corrosion, delayed peeling, and mechanical abrasion were recognised. Thanks to the combination of X-ray and optical methods, together with the determination of the stress states of the two-and three-component systems, causes of secondary defects were described. The main source of these defects were calcium residues causing volume changes in the ceramic bodies.

Název v anglickém jazyce

Causes of defects in historical ceramic materials with Ca-rich body

Popis výsledku anglicky

The aim of the present work was to study and identify the causes and sources of defects in the glazes and decorations of archaeological ceramics containing a calcium component. As part of systematic archaeological research in the Hrad &amp; ccaron;any area, several reconstructable objects and some fragmentary sherds of archaeological ceramics with a relatively high calcium content were found. Seven objects of faience were rescued from the waste pits on the premises of the third courtyard of the Prague Castle, a flower pot was found in Lumbe garden, and creamware sherds were excavated from a waste pit between the Salm and Schwarzenberg palaces on Hrad &amp; ccaron;any Square. The first step of the research was the evaluation of ceramic bodies, glazes, and decorations using archaeometric methods. Subsequently, dilatometric measurements of cera-mic bodies and stress state calculations of ceramic body-glaze, or glaze-decor systems were used to identify the sources of defects observed on archaeological finds. Both primary and secondary defects were identified in all studied finds. Among the primary defects, pinholes and blisters predominated. As secondary defects, crazing, blackening, corrosion, delayed peeling, and mechanical abrasion were recognised. Thanks to the combination of X-ray and optical methods, together with the determination of the stress states of the two-and three-component systems, causes of secondary defects were described. The main source of these defects were calcium residues causing volume changes in the ceramic bodies.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

CERAMICS-SILIKATY

ISSN

0862-5468

e-ISSN

1804-5847

Svazek periodika

67

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

16

Strana od-do

387-402

Kód UT WoS článku

001086065000001

EID výsledku v databázi Scopus

—