Dielectric properties analysis of sulfur-containing models in coal and energy evaluation of their sulfur-containing bond dissociation in microwave field

Fuel ◽  
2016 ◽  
Vol 181 ◽  
pp. 1027-1033 ◽  
Author(s):  
Xiuxiang Tao ◽  
Longfei Tang ◽  
Maohua Xie ◽  
Huan He ◽  
Ning Xu ◽  
...  
2020 ◽  
Vol 384 ◽  
pp. 121227 ◽  
Author(s):  
Kangqiang Li ◽  
Jin Chen ◽  
Jinhui Peng ◽  
Roger Ruan ◽  
Mamdouh Omran ◽  
...  

1992 ◽  
Vol 269 ◽  
Author(s):  
Edmund H. Moore ◽  
David E. Clark ◽  
Ronald Hutcheon

ABSTRACTCompact samples of alumina and polymethyl methacrylate have been heated in a 2.45 GHz microwave cavity and by conventional heating in an electric furnace. Various heating schedules have been used to effect the removal of the polymeric binder by thermal decomposition. Dielectric properties, porosity and other physical properties have been investigated in order to better understand the binder removal process in a microwave field. Results of the study emphasize the amount of carbon residuals remaining in the bulk.


IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 180316-180323
Author(s):  
Yong Gao ◽  
En Li ◽  
Gaofeng Guo ◽  
Hu Zheng ◽  
Yang Zhou

1994 ◽  
Vol 347 ◽  
Author(s):  
Daniel J. Skamser ◽  
D. Lynn Johnson

ABSTRACTA hybrid microwave heating arrangement used to heat alumina fiber preforms has been modeled to determine what conditions are needed to create significant differences in temperature across the specimen while still maintaining control of the temperature. The model assumes a uniform external microwave field and dielectric properties for the specimen as a function of temperature. The results of the model show that significant differences in temperature can be attained while still having control of the temperature at the center. Experiments show that the temperature at the center can be held at 1000°C and still allow a difference in temperature of 50°C between the center and the surface of the specimen to be present.


ACS Omega ◽  
2020 ◽  
Vol 5 (22) ◽  
pp. 12672-12681
Author(s):  
Ting Hu ◽  
Linqing Dai ◽  
Qin Guo ◽  
Bingguo Liu ◽  
Qihao Gui ◽  
...  

2003 ◽  
Vol 18 (10) ◽  
pp. 2292-2295 ◽  
Author(s):  
Ramesh Peelamedu ◽  
Craig Grimes ◽  
Dinesh Agrawal ◽  
Rustum Roy ◽  
Purushotham Yadoji

Ultralow dielectric constant values were measured on Ni–Zn ferrites prepared using Fe2O3 as a starting material and sintered in a microwave field. Significant differences in microstructure, magnetic, and dielectric properties were observed between microwave-sintered Ni–Zn ferrites prepared using Fe3O4 (T34) and those starting with Fe2O3 (T23) ingredients. Higher magnetization values observed in T23 ferrite are attributed to large grain size, possibly containing abundant domain walls and the presence of fewer Fe2+ ions. The ultralow dielectric constant values observed on T23 ferrites show that this procedure is highly suitable to prepare Ni–Zn ferrites for high-frequency switching applications.


Sign in / Sign up

Export Citation Format

Share Document