BCMaterials Fortnightly Seminars #18

“Energy harvesting device based on a metallic glass/PVDF magnetoelectric laminated composite”
Andoni Lasheras
(UPV/EHU)
A flexible and low cost energy harvester device based on the magnetoelectric (ME) effect has been designed using Fe64Co17Si7B12 as amorphous magnetostrictive ribbons and PVDF as the piezoelectric element. Sandwich-type laminated composite of 3 cm long has been fabricated by gluing these ribbons to the PVDF with an epoxy resin. A voltage multiplier circuit has been designed to produce enough voltage to charge a battery. The power output and power density obtained were 6.4 μW and 1.5 mW/cm3, respectively, at optimum load resistance and measured at the magnetomechanical resonance of the laminate. The effect of the length of the ME laminate on the power output has been also studied, exhibiting a decay as the length of the ME laminate does. Nevertheless, good performance of such device has been obtained for a 0.5 cm long device, working already at 337 KHz, within the low radio frequency (LRF) range.
“High-temperature polyimide based magnetoelectric nanocomposites”
Alberto Maceiras
(UPV/EHU)
The use of polymer based magnetoelectric materials for sensing and actuation applications has been the subject of increasing scientific and technological interest. One of the drawbacks to be overcome in this field is to increase the temperature range of application above 100 ºC. In this way, a nanocomposite polyimide material composed by a mixture of two aromatic diamines, 1,3-Bis-2-cyano-3-(3 aminophenoxy)phenoxybenzene (diamine 2CN) and 1,3-Bis(3-aminophenoxy)benzene (diamine 0CN) and CoFe2O4 (CFO) nanoparticles was designed, fabricated and successfully tested for high temperature magnetoelectric applications.
Related news
Amaia Zarandona, New Doctor of BCMaterials
We would like to congratulate Amaia Zarandona Rodríguez for obtaining her PhDs in Materials Science and Technology from the UPV/EHU. On May 22, Amaia made a brilliant defense of her thesis titled “…Pablo Docampo, New Ikerbasque Professor at BCMaterials
We are glad to welcome Pablo Docampo as new Ikerbasque Research Professor at BCMaterials. Prof. Docampo received his DPhil in 2012 from the University of Oxford focussing on the electronic…Invited Talk with Aaron Mailman (May 20th)
BCMaterials is proud to host Dr. Aaron Mailman, Academy of Finland Research Fellow at the University of Jyväskylä (Finland) in a new invited talk. The talk is titled: “Organic Radicals as Functional…Qi Zhang Appointed Visiting Professor at NUAA (China)
Our Ikerbasque Research Professor, Qi Zhang, was appointed visiting professor at Nanjing University of Aeronautics and Astronautics (NUAA) this April. Zhang, who has an extensive research career in…