Features of the crystalline structure and thermal stability of the wurtzite modification of boron nitride

1985 ◽  
Vol 24 (1) ◽  
pp. 77-82
Author(s):  
A. V. Kurdyumov ◽  
G. S. Oleinik ◽  
N. F. Ostrovskaya ◽  
A. N. Pilyankevich ◽  
G. I. Sawakin
Keyword(s):  
Thermal Stability ◽  
Boron Nitride ◽  
Crystalline Structure ◽  
Thermal Stability Of

scholarly journals Electrospun Silk-Boron Nitride Nanofibers with Tunable Structure and Properties

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1093
Author(s):  
Ye Xue ◽  
Xiao Hu
Keyword(s):  
Thermal Stability ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Environmental Research ◽  
Strong Interactions ◽  
Helical Structures ◽  
Scanning Calorimetry ◽  
Modulated Differential Scanning Calorimetry ◽  
Good Thermal Stability ◽  
Thermal Stability Of

In this study, hexagonal boron nitride (h-BN) nanosheets and Bombyx mori silk fibroin (SF) proteins were combined and electrospun into BNSF nanofibers with different ratios. It was found that the surface morphology and crosslinking density of the nanofibers can be tuned through the mixing ratios. Fourier transform infrared spectroscopy study showed that pure SF electrospun fibers were dominated by random coils and they gradually became α-helical structures with increasing h-BN nanosheet content, which indicates that the structure of the nanofiber material is tunable. Thermal stability of electrospun BNSF nanofibers were largely improved by the good thermal stability of BN, and the strong interactions between BN and SF molecules were revealed by temperature modulated differential scanning calorimetry (TMDSC). With the addition of BN, the boundary water content also decreased, which may be due to the high hydrophobicity of BN. These results indicate that silk-based BN composite nanofibers can be potentially used in biomedical fields or green environmental research.

Thermal stability of UV light emitting boron nitride nanowalls

2017 ◽  
Vol 117 ◽  
pp. 239-247 ◽  
Author(s):  
Ivan S. Merenkov ◽  
Alena A. Burovihina ◽  
Yuri M. Zhukov ◽  
Igor A. Kasatkin ◽  
Oleg S. Medvedev ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Boron Nitride ◽  
Uv Light ◽  
Light Emitting ◽  
Thermal Stability Of

Crystalline structure and thermal stability of double strontium and barium carbonates

1990 ◽  
Vol 171 ◽  
pp. 229-238 ◽  
Author(s):  
J.M. Criado ◽  
M.J. Dianez ◽  
M. Macias ◽  
M.C. Paradas
Keyword(s):  
Thermal Stability ◽  
Crystalline Structure ◽  
Thermal Stability Of

PP/MWCNTs composites: Effects of length of MWCNTs on isothermal crystallization behaviors, crystalline structure, and thermal stability

2017 ◽  
Vol 52 (4) ◽  
pp. 503-517 ◽  
Author(s):  
Zheng-Ian Lin ◽  
Ching-Wen Lou ◽  
Yi-Jun Pan ◽  
Chien-Teng Hsieh ◽  
Chien-Lin Huang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Stability ◽  
Crystalline Structure ◽  
Isothermal Crystallization ◽  
Crystallization Rate ◽  
Nucleating Agent ◽  
Scanning Calorimetry ◽  
Crystallization Behaviors ◽  
Walled Carbon Nanotubes ◽  
Thermal Stability Of

This study adopts the melt compounding method to prepare /mutli-walled carbon nanotubes composites. The effects of different lengths of the mutli-walled carbon nanotubes on the isothermal crystallization behaviors, crystalline structure, and thermal stability of the polypropylene/mutli-walled carbon nanotubes composites are examined. The PLM results show that the combination of mutli-walled carbon nanotubes prevents the growth of polypropylene spherulites, and thus results in a small size of spherulites. The differential scanning calorimetry results show that the short (S-) or long (L-) mutli-walled carbon nanotubes can function as the nucleating agent of polypropylene, which accelerates the crystallization rate of polypropylene. Avrami theory analyses indicate that the addition of short-mutli-walled carbon nanotubes particularly provides polypropylene/mutli-walled carbon nanotubes composites with a high crystallization rate. The X-ray diffraction results show that the combination of mutli-walled carbon nanotubes does not pertain to the crystal structure. The TGA test results show that long-mutli-walled carbon nanotubes outperform short -mutli-walled carbon nanotubes in improving the thermal stability of polypropylene, and both can significantly improve it.

Thermal Stability of Cubic Boron Nitride Films Deposited by Chemical Vapor Deposition.

ChemInform ◽  
2007 ◽  
Vol 38 (2) ◽  
Author(s):  
J. Yu ◽  
Z. Zheng ◽  
H. C. Ong ◽  
K. Y. Wong ◽  
S. Matsumoto ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Chemical Vapor Deposition ◽  
Boron Nitride ◽  
Vapor Deposition ◽  
Cubic Boron Nitride ◽  
Chemical Vapor ◽  
Boron Nitride Films ◽  
Thermal Stability Of
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