Document Details

Document Type : Article In Journal 
Document Title :
New resistive switching and self-regulating heating in foliated graphite/nickel polyvinyl chloride nanocomposites
New resistive switching and self-regulating heating in foliated graphite/nickel polyvinyl chloride nanocomposites
 
Subject : Physics 
Document Language : English 
Abstract : Polyvinyl chloride- (PVC-) based nanocomposites containing nanosized graphite and nickel nanoparticles (GN) as conductive fillers to achieve positive temperature coefficient of resistance (PTCR) thermistors and self-regulating heater function have been successfully fabricated. The microstructure of the foliated graphite and nanocomposites was examined by scanning electron microscopy (SEM). The effect of GN content on the static electrical conductivity, carrier's mobility, and number of charge carriers of the nanocomposites was studied. The applicability of nanocomposites as PTCR thermistors was examined by monitoring the conductivity as a function of temperature. It is found that the conduction mechanism in PVC/GN nanocomposites is governed by tunneling mechanism. Also, the applied voltage versus current and temperature were studied to check the applicability of composites as self-regulating heater. The results show that the PVC/GN nanocomposites might have potential applications in PTCR devices, self-regulating heater, and temperature sensors. 
ISSN : 1687-4110 
Journal Name : Journal of Nanomaterials 
Volume : 2011 
Issue Number : 2011 
Publishing Year : 1432 AH
2011 AD 
Article Type : Article 
Added Date : Monday, February 6, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
عمر عبدالله الحرتوميAl-Hartomy, Omar AResearcherDoctorateoalhartomy@hotmail.com
فالح رجاء الله السلميAl-Solamy, Falleh RResearcherDoctoratefalleh@hotmail.com
أحمد عبدالله الغامديAl-Ghamdi, Ahmad AResearcherDoctorateAGAMDI@kau.edu.sa
عطية علي الغامديAl-Ghamdi, Attieh AliResearcherDoctoratealghamdi@kacst.edu.sa
علي محمد عبدالدايمAbdel Daiem, Ali MohamedResearcherDoctorateabdeldaiem@hotmail.com
Farid K El-TantawyEl-Tantawy, Farid KResearcherDoctoratefaridtantawy@yahoo.com

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