Crystal growth and characterization of optical, thermal and electrical properties of organic NLO crystal OHB-T

2020 ◽  
Vol 547 ◽  
pp. 125757
Author(s):  
Kai Xu ◽  
Lifeng Cao ◽  
Fei You ◽  
Degao Zhong ◽  
Tianhua Wang ◽  
...  
Author(s):  
Swaminathan Ponmani ◽  
Jay Karen Maria William ◽  
Robello Samuel ◽  
R. Nagarajan ◽  
Jitendra S. Sangwai

2004 ◽  
Vol 808 ◽  
Author(s):  
Jianjun Zhang ◽  
Kousaku Shimizu ◽  
Jun-ichi Hanna

ABSTRACTWe have prepared poly-Si1-xGex thin films with different germanium contents (Ge=5%∼40%) by reactive thermal CVD. In this study, the Ge content was controlled by varying the source gases GeF4 flow rate at a fixed Si2H6 flow rate. The effects of GeF4 flow rate on growth rate, film crystallinity, and electrical properties were investigated. The films were always polycrystalline when GeF4 was introduced even in a small amount, while only amorphous film deposited without GeF4. With an increase in GeF4 flow rate, Ge content and conductivity of the films increased and its activation energy decreased. When GeF4 flow rate over a certain value, the growth rate decrease and finally no film could be deposited. These behaviors are discussed in relation with a role of GeF4 for the crystal growth at a low temperature.


Author(s):  
Azmi Ibrahim ◽  
Rosidah Alias ◽  
Zulkifli Ambak ◽  
Mohd Zulfadli Mohamed Yusoff ◽  
Sabrina Mohd Shapee ◽  
...  

2015 ◽  
Vol 33 (1) ◽  
pp. 213-219 ◽  
Author(s):  
Muhammad Ali ◽  
Muhammad Ahmad Choudhry

AbstractThe rising market for substitute materials in high voltage insulation components is stimulated largely by the need to reduce overall costs. In this respect, polymer insulators offer significant advantages over old traditional materials. In the present research, efforts have been made to quantify the effect of silica (having different particle size nano, micro and hybrid) loading on the mechanical and thermal behaviors of Ethylene-Propylene-Diene Monomer (EPDM) based high voltage electrical insulations. The fabricated composites were subjected to mechanical, thermal and electrical properties measurements. The results of dielectric strength, surface and volume resistivities showed that all composites had insulator properties, while their mechanical and thermal properties improved considerably. EPDM was compounded with different types of silica in a two roll mill using sulphur cure system. The outcome achieved from the comparative study revealed that the EPDM nanocomposites had enhanced mechanical, thermal and electrical properties even at 5 % loadings.


2014 ◽  
Vol 23 (6) ◽  
pp. 437-443 ◽  
Author(s):  
Jalila Al-Osaimi ◽  
Najm Al-Hosiny ◽  
Said Abdallah ◽  
Ali Badawi

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