Electromagnetic modulation of conductance and susceptance in electrical devices based on silicone oil with polypyrrole-magnetite particle composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F24%3A63580160" target="_blank" >RIV/70883521:28610/24:63580160 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28110/24:63580160

Výsledek na webu

<a href="https://pubs.rsc.org/en/content/articlelanding/2024/tc/d4tc02073a" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2024/tc/d4tc02073a</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d4tc02073a" target="_blank" >10.1039/d4tc02073a</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electromagnetic modulation of conductance and susceptance in electrical devices based on silicone oil with polypyrrole-magnetite particle composites

Popis výsledku v původním jazyce

This study investigates the fabrication and characterization of innovative electrical devices (EDs) subjected to an alternating electric field in the presence of static electric and magnetic fields. The EDs contain suspensions of silicone oil (SO) and micrometric aggregates of polypyrrole nanotubes decorated with various mass fractions of magnetite nanoparticles (PPyM). Our experimental findings and theoretical analyses demonstrate that the conductance and susceptance of these EDs can be coarsely adjusted by altering the mass ratios of magnetite to polypyrrole. Fine control of these electrical properties is achieved through the application of electric and magnetic fields superimposed on the alternating electric field. The findings reveal the dual responsiveness of the EDs at small values of electric and magnetic field intensities. A theoretical model is proposed that provides a qualitative description of the physical mechanisms governing the behavior of the EDs under these field conditions. Thus, the results contribute to advancing the understanding of electromagnetorheological phenomena at the microscale in this type of ED, highlighting the potential of PPyM composites dispersed within an SO matrix, in the development of sophisticated micromachines with dynamically controllable features under varying external conditions. Electrical conductance and susceptance of electrical devices with composite liquids based on silicone oil and polypyrrole-magnetite particles are finely tuned by varying electric and magnetic fields and adjusting magnetite content.

Název v anglickém jazyce

Electromagnetic modulation of conductance and susceptance in electrical devices based on silicone oil with polypyrrole-magnetite particle composites

Popis výsledku anglicky

This study investigates the fabrication and characterization of innovative electrical devices (EDs) subjected to an alternating electric field in the presence of static electric and magnetic fields. The EDs contain suspensions of silicone oil (SO) and micrometric aggregates of polypyrrole nanotubes decorated with various mass fractions of magnetite nanoparticles (PPyM). Our experimental findings and theoretical analyses demonstrate that the conductance and susceptance of these EDs can be coarsely adjusted by altering the mass ratios of magnetite to polypyrrole. Fine control of these electrical properties is achieved through the application of electric and magnetic fields superimposed on the alternating electric field. The findings reveal the dual responsiveness of the EDs at small values of electric and magnetic field intensities. A theoretical model is proposed that provides a qualitative description of the physical mechanisms governing the behavior of the EDs under these field conditions. Thus, the results contribute to advancing the understanding of electromagnetorheological phenomena at the microscale in this type of ED, highlighting the potential of PPyM composites dispersed within an SO matrix, in the development of sophisticated micromachines with dynamically controllable features under varying external conditions. Electrical conductance and susceptance of electrical devices with composite liquids based on silicone oil and polypyrrole-magnetite particles are finely tuned by varying electric and magnetic fields and adjusting magnetite content.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/GA23-07244S" target="_blank" >GA23-07244S: Anizotropní magnetoreologické elastomery s řízenými elektrickými vlastnostmi</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Materials Chemistry C

ISSN

2050-7526

e-ISSN

2050-7534

Svazek periodika

12

Číslo periodika v rámci svazku

34

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

13596-13608

Kód UT WoS článku

001281025200001

EID výsledku v databázi Scopus

2-s2.0-85200468856