Effects of Rutile Particle Size on Microwave Dielectric Properties of Silicone Rubber
Journal Title: 河南科技大学学报（自然科学版） - Year 2017, Vol 38, Issue 2
Abstract
Rutile / silicone rubber composites were prepared by filling 107 silicone rubber with micro-and nanorutile particles respectively and by room temperature curing method. The phase composition and microstructure of the ceramic fillers were characterized by X-ray diffraction( XRD),transmission electron microscope( TEM)and scanning electron microscope( SEM). The effects of rutile particles volume fraction and size on the microwave dielectric properties of silicone rubber were investigated. The results show that for the same volume fraction,the permittivity ε_r of nano rutile / silicone rubber composites is higher than micro rutile / silicone rubber composites,while the product of quality factor and resonance frequency Q × f of nano rutile / silicone rubber composites is lower than that of micro rutile / silicone rubber composites. The temperature coefficient of resonance frequency τ_f of the two kinds of composites are similar. For 19% volume fraction of nano rutile,ε_r is3. 32,Q × f is 2 604 GHz and τ_f is 49 × 10~(- 6)/ ℃. The experimental values of composites permittivity were compared with three kinds of theoretical models,and it was find that the experimental values of permittivity are lower than the theoretical value.
Authors and Affiliations
Ting LI, Qian LI, Jinliang HUANG, Lihua LI, Yongjun GU
Keywords
Related Articles
- EP ID EP477909
- DOI -
- Views 63
- Downloads 0
Motor Fault Detection by Displacement Detection and LSSVM
Displacements between stators and rotors were the main reasons for induction motor faults.8 detection coils were pre-placed into the notch grooves of stator core tooth for displacement detection, and they were configured...
Application of Interpolation Method to Conductivity Temperature Compensation System Design
1
A Supply Chain Model with Imperfect Product and Backorder
A single-manufacturer single-retaile supply chain with imperfect product and shortages was developed. The operations and decisions of the members in the supply chain were studied. The expected profits per unit time of th...
Effect of Relative Humidity on Triboelectric Wear of Copper
By the single point contact triboelectric wear tester equipped with an atmosphere chamber, the effects of relative humidity on the triboelectric wear of Cu were investigated under sliding electric contact.The results sug...
Chance Constraint Model and Properties of Uncertain Random Closed-loop Logistics Network
1