| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7857624 | Composites Communications | 2016 | 5 Pages |
Abstract
We have investigated the microwave properties of epoxy-based composites containing melt-extracted Co69.25Fe4.25B13.5âxSi13Nbx (x=0, 1, 3) microwires of various length annealed using a so-called combined current-modulation annealing (CCMA) technique. The observation of a double-peak feature in the permittivity spectra is believed due to the coexistence of the amorphous phase and a small amount of nanocrystallites on the wires with a high Nb content. CCMA was found to be favorable for a better-defined circular anisotropy of microwires and had suppressed the high-frequency peak due to residual stress relief for the composite with 25Â mm long wires. Neither the shift of resonance peak nor the characteristic double peak feature was detected for composites containing as-cast 15 or 35Â mm long microwires.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Biomaterials
Authors
Yang Luo, Faxiang Qin, Jingshun Liu, Huan Wang, Fabrizio Scarpa, Pierre Adohi, Christian Brosseau, Hua-Xin Peng,