Thermal Stability of a-SiNx:H Films

1992 ◽  
Vol 284 ◽  
Author(s):  
V.Kh. Kudoyargva ◽  
A. A. Aivazov ◽  
B. G. Budaguan ◽  
I. V. Filatova

ABSTRACTThe investigations of thermal stability of a-SiNx:H films (x≤0.4) have xbeen performed bv both IR spectroscopy and DTA techniques. The properties of samples with x≤0.06 were attentively considered because in this case the nitrogen may be treated as an impurity in a-Si:H. It has been shown that controlled nitrogen doping (up to 0.5 Pa NH3) can be used as an effective technique for thermostabilization of a-Si:H properties.

2020 ◽  
Vol 869 ◽  
pp. 61-68
Author(s):  
Egor A. Bersenev ◽  
Alina Maryasevskaya ◽  
Evgenii V. Komov ◽  
Denis V. Anokhin ◽  
Dimitri A. Ivanov

In the present paper we study the effect of complexation in linear negatively charged polyelectrolytes with different alkali ions. With combination of IR-spectroscopy, X-ray diffraction and nanocalorimetry, we attempted to explain unusual solubility, crystallinity and thermal stability of these polymers. The increase of thermal stability and insolubility in water in series of semi-crystalline polysalts as K+ ≤ H+ <Na+ was explained by effectiveness of formation of chelating complex. Insoluble in water sodium salt shows the highest thermal stability of crystal phase up to . In contrast, well soluble in water amorphous lithium salt does not self-organize in chelating complex and is presented in ionic form.


2013 ◽  
Vol 30 (3) ◽  
pp. 037401 ◽  
Author(s):  
Meng-Jiao Xia ◽  
Feng Rao ◽  
Zhi-Tang Song ◽  
Kun Ren ◽  
Liang-Cai Wu ◽  
...  

2020 ◽  
Vol 709 ◽  
pp. 138188
Author(s):  
Jihua Peng ◽  
Manzhong Yang ◽  
Jiwei Zeng ◽  
Dongyi Su ◽  
Jingwen Liao ◽  
...  

2012 ◽  
Vol 490-495 ◽  
pp. 3698-3702
Author(s):  
Su Xia Zhang ◽  
Yi Hong Tang ◽  
Yan Lu ◽  
Ya Ming Niu

Six new poly(aryl ether sulfone)s were synthesized from 1,5-, 2,6- and 2,7- Bis-(4-fluorosulfonyl)naphthalene isomers with different diphenol. The structure of the poly(aryl ether sulfone)s were characterized by IR spectroscopy and elemental analysis, and the results were in good agreement with the expected structures. The glass transition temperatures were found to be in the range 219-236oC by DSC thermal analysis. The WAXD and thermogravimetric analyses revealed amorphous morphology and excellent thermal stability of the polymers.


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