scholarly journals Kinetic modeling of detonation and effects of negative temperature coefficient

2016 ◽  
Vol 173 ◽  
pp. 483-492 ◽  
Author(s):  
Yudong Zhang ◽  
Aiguo Xu ◽  
Guangcai Zhang ◽  
Chengmin Zhu ◽  
Chuandong Lin
Keyword(s):  
Temperature Coefficient ◽  
Kinetic Modeling ◽  
Negative Temperature Coefficient ◽  
Negative Temperature

Experimental investigation and kinetic modeling of the negative temperature coefficient of the reaction rate in rich propane—oxygen mixtures

1997 ◽  
Vol 46 (12) ◽  
pp. 2006-2010 ◽  
Author(s):  
V. I. Vedeneev ◽  
L. B. Romanovich ◽  
V. Ya. Basevich ◽  
V. S. Arutyunov ◽  
O. V. Sokolov ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Temperature Coefficient ◽  
Kinetic Modeling ◽  
Reaction Rate ◽  
Negative Temperature Coefficient ◽  
Negative Temperature

Aging of iron manganite negative temperature coefficient thermistors

1998 ◽  
Vol 13 (5) ◽  
pp. 1238-1242 ◽  
Author(s):  
T. Battault ◽  
R. Legros ◽  
A. Rousset
Keyword(s):  
Temperature Coefficient ◽  
Spinel Structure ◽  
Negative Temperature Coefficient ◽  
Negative Temperature ◽  
X Ray Diffraction ◽  
X Ray ◽  
Octahedral Sites ◽  
Before And After ◽  
Structural Equilibrium ◽  
Electrical Data

“Aging,” defined as the drift of resistance with temperature after 1000 h, was investigated for iron manganite temperature coefficient thermistors. For these devices, aging is relatively large, about 10%. The cationic distributions before and after aging were determined by Mössbauer spectroscopy. These distributions explain all the x-ray diffraction and correlated electrical data. The origin of the aging observed on iron manganites thermistors has been identified. It is due to the migration of Fe3+ ions from tetrahedral to octahedral sites of the spinel structure in order to reach a structural equilibrium.

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