Detail publikace

A Practical Approach for the Calculation of the Activation Energy of the Sintering

POUCHLÝ, V. HRUBÝ, J. MACA, K.

Originální název

A Practical Approach for the Calculation of the Activation Energy of the Sintering

Anglický název

A Practical Approach for the Calculation of the Activation Energy of the Sintering

Jazyk

en

Originální abstrakt

Newly developed software for calculation of activation energy (Qs in the following) of sintering using the Wang and Raj model is presented. To demonstrate the practical potential of the software and to evaluate the behaviour of the Qs during the sintering process, alumina and cubic zirconia ceramic compacts were prepared from nanometric powders. The results obtained with both materials are in agreement with previously published data calculated by different approaches. In the interval of interest (relative densities from 60 % to almost 100 % of theoretical density), both materials show similar behaviour. Three distinct regions can be seen: the initial constant values of Qs 868 kJ/mol and 762 kJ/mol for alumina and cubic zirconia, respectively; a region containing linear drop of Qs and the final region of constant Qs values 625 kJ/mol and 645 kJ/mol for alumina and cubic zirconia, respectively.

Anglický abstrakt

Newly developed software for calculation of activation energy (Qs in the following) of sintering using the Wang and Raj model is presented. To demonstrate the practical potential of the software and to evaluate the behaviour of the Qs during the sintering process, alumina and cubic zirconia ceramic compacts were prepared from nanometric powders. The results obtained with both materials are in agreement with previously published data calculated by different approaches. In the interval of interest (relative densities from 60 % to almost 100 % of theoretical density), both materials show similar behaviour. Three distinct regions can be seen: the initial constant values of Qs 868 kJ/mol and 762 kJ/mol for alumina and cubic zirconia, respectively; a region containing linear drop of Qs and the final region of constant Qs values 625 kJ/mol and 645 kJ/mol for alumina and cubic zirconia, respectively.

Plný text v Digitální knihovně

Dokumenty

BibTex


@article{BUT130451,
  author="Václav {Pouchlý} and Jan {Hrubý} and Karel {Maca}",
  title="A Practical Approach for the Calculation of the Activation Energy of the Sintering",
  annote="Newly developed software for calculation of activation energy (Qs in the following) of
sintering using the Wang and Raj model is presented. To demonstrate the practical potential
of the software and to evaluate the behaviour of the Qs during the sintering process, alumina
and cubic zirconia ceramic compacts were prepared from nanometric powders. The results
obtained with both materials are in agreement with previously published data calculated by
different approaches. In the interval of interest (relative densities from 60 % to almost 100 %
of theoretical density), both materials show similar behaviour. Three distinct regions can be
seen: the initial constant values of Qs 868 kJ/mol and 762 kJ/mol for alumina and cubic
zirconia, respectively; a region containing linear drop of Qs and the final region of constant
Qs values 625 kJ/mol and 645 kJ/mol for alumina and cubic zirconia, respectively.",
  address="International Institute for the Science of Sintering",
  chapter="130451",
  doi="10.2298/SOS1603317P",
  howpublished="print",
  institution="International Institute for the Science of Sintering",
  number="3",
  volume="48",
  year="2016",
  month="december",
  pages="317--324",
  publisher="International Institute for the Science of Sintering",
  type="journal article in Web of Science"
}