Naslov
INDENTATION SIZE EFFECT OF CONVENTIONAL AND NON- CONVENTIONAL SINTERED AL2O3 CERAMICS

Autori
Ropuš, Ivana ; Ćurković, Lidija ; Kerolli Mustafa, Mihone ; Kumić, Ivan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Theory to Practice as a Cognitive, Educational and Social Challenge / Stanojevic, J. ; Kerolli Mustafa, M. - : South East European University (SEEU) ; International Business College Mitrovica (IBC-M), 2021, 190-197

Skup
T2P International Scientific Conference ′′Theory to Practice as a Cognitive, Educational and Social Challenge′′

Mjesto i datum
Kosovska Mitrovica, Kosovo, 17.09.2020. - 18.09.2020

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
alumina ceramics ; conventional and non-conventional sintering methods ; indentation size effect ; Vickers hardness.

Sažetak
The objective of this study was to investigate and analyze the indentation size effect (ISE) by means of Vickers method of the alumina (Al2O3) ceramics sintered by conventional (electric kiln) and non-conventional sintering method (hybrid microwave kiln). The Vickers hardness was measured under the following loads: 0.98 N, 2.94 N, 4.90 N, 9.81 N, 29.42 N and 49.03 N. The ISE is analyzed using the Mayer’s law, a proportional specimen resistance (PSR) model and a modified proportional specimen resistance (MPSR) model. Dependence of the hardness on test loads indicates Meyer’s index (n) that is less than 2 for alumina ceramics sintered by both sintering methods. High correlation coefficients confirm that all applied mathematical models are suitable for the data analysis, while the best correlation between measured values and mathematical models was achieved with the MPSR model with a correlation coefficient of 0.999.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Strojarstvo, Temeljne tehničke znanosti

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