- Tytuł:
- Kinetics and Mechanical Studies of Melaminium bis(trichloroacetate) dihydrate
- Autorzy:
-
Kanagathara, N.
Marchewka, M.
Gunasekaran, S.
Anbalagan, G. - Powiązania:
- https://bibliotekanauki.pl/articles/1205304.pdf
- Data publikacji:
- 2014-08
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
82.20.Pm
65.40.-b
82.20.-w
62.20.Qp
83.50.-v - Opis:
- The thermal decomposition kinetics of melaminium bis(trichloroacetate) dihydrate (MTCA) has been studied by thermogravimetry and derivative thermogravimetry techniques using non-isothermal experiments at three different heating rates 10, 15, and 20°C $\text{min}^{-1}$. Non-isothermal studies of MTCA revealed that the decomposition occurs in three stages involving dehydration and decomposition. The apparent activation energy $(E_{a})$ and the pre-exponential factor (ln A) of each stage of thermal decomposition at various linear heating rates are calculated using Flynn-Wall, Friedman, Kissinger, and Kim-Park method. A significant variation of effective activation energy $(E_{a})$ with conversion $(α)$ indicates that the process is kinetically complex. The linear relationship between the A and $E_{a}$ values is well established (compensation effect). Isothermal kinetics of thermal decomposition of MTCA was found to obey Avrami-Erofeev's (A4) and power law (P3) equations. In addition to the above, mechanical properties have been estimated by Vicker's microhardness test for the grown crystal.
- Źródło:
-
Acta Physica Polonica A; 2014, 126, 3; 827-832
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł