Joule Heating of Carbon-Based Materials Obtained by Carbonization of Para-Aramid Fabrics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F23%3A00011969" target="_blank" >RIV/46747885:24410/23:00011969 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2311-5629/9/1/23/pdf" target="_blank" >https://www.mdpi.com/2311-5629/9/1/23/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/c9010023" target="_blank" >10.3390/c9010023</a>

Result language

angličtina

Original language name

Joule Heating of Carbon-Based Materials Obtained by Carbonization of Para-Aramid Fabrics

Original language description

The Joule heating behavior of carbon-based materials obtained by the process of carbonization of industrial para-aramid fabric wastes are investigated in the present work. Carbonization involves a process of thermally decomposing organic material, thereby altering its physical and chemical properties to obtain carbon-rich materials that are electrically conductive and display Joule heating behavior. The principle of Joule heating is based on the intrinsic electrical resistance of the material across an applied voltage. Here, para-aramid woven fabric wastes are converted into activated carbon materials through straightforward, controlled, single-step thermal treatments by three different kinds of atmosphere, i.e., in the CO2 evolved from charcoal, a mixture of gases from ammonium bicarbonate salt (NH4HCO3), and Nitrogen gas (N-2), respectively, inside a high-temperature furnace. The carbonization temperatures were varied from 800 to 1100 degrees C. The carbonization process variables were optimized to obtain carbon-rich materials with lower electrical resistivity. The results of electrical resistivity measurements show that for all three methods, the electrical resistivity decreases with increasing carbonization temperatures. An experimental setup consisting of an infrared (IR) camera, positioned over the surface of the fabric specimen to record the surface temperature of the material connected to a DC power supply, was employed. The kinetics of Joule heating and subsequent cooling were also analyzed at a fixed voltage of 5 V by recording the changes in surface temperature with respect to time. The heating-cooling cycle is described by a simple kinetic model of first order.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20500 - Materials engineering

Project

<a href="/en/project/GM21-32510M" target="_blank" >GM21-32510M: Advanced structures for thermal insulation in extreme conditions</a><br>

Continuities

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

Publication year

2023

Confidentiality

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

Name of the periodical

C-JOURNAL OF CARBON RESEARCH

ISSN

2311-5629

e-ISSN

—

Volume of the periodical

9

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

11

Pages from-to

1-15

UT code for WoS article

000957332400001

EID of the result in the Scopus database

2-s2.0-85168609795