| dc.creator | Joel Odelin Novelo Segura | |
| dc.creator | Andrés Iván Oliva Arias | |
| dc.creator | Abel Hurtado MacÍas | |
| dc.date | 2010 | |
| dc.date.accessioned | 2023-07-21T15:32:07Z | |
| dc.date.available | 2023-07-21T15:32:07Z | |
| dc.identifier | http://cimav.repositorioinstitucional.mx/jspui/handle/1004/2417 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7728311 | |
| dc.description | Nanotechnology applications have become a reality in some materials science fields. Thermal
properties of metallic nanofilms reported in the literature have shown to posses different values as
compared with their bulk properties. The determination of the thermal properties plays a key role in
the design of components and in the production of new materials. In this work a new method to
estimate the heat capacity of metallic thin films is discussed. The analyzed thermal model consists
in a three-layer system formed by a film/substrate/film. To estimate the heat capacity of the metallic
film, it is required to apply a constant dc current in one metallic layer such that the three-layer
system reaches the steady-state. In this condition, a dc current pulse is applied in the same metallic
layer acquiring in real time the corresponding voltage and the changes of temperature as a
consequence of the applied pulse. The three-layered model is analyzed by using coupling
differential equations which includes the different mechanisms of heat transfer involved as a
function of the physical properties and the geometrical parameters. Simulated results obtained from
Au/glass/Au, Al/glass/Al, and Cu/glass/Cu systems for different electrical pulses and film
thicknesses are discussed. These analytical results provide tools for developing better experimental
conditions to estimate the heat capacity of metallic nanofilms.
Keywords: thermal model, three-layer, heat capacity, metallic films | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | http://creativecommons.org/licenses/by-nc/4.0 | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.subject | info:eu-repo/classification/cti/22 | |
| dc.subject | info:eu-repo/classification/cti/2213 | |
| dc.subject | info:eu-repo/classification/cti/221308 | |
| dc.subject | info:eu-repo/classification/cti/221308 | |
| dc.title | Three-layer thermal model to measure the heat capacity of metallic thin films | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
