Modelling for the thermal characterization of solid materials by dc scanning thermal microscopy

Scanning thermal microscopy (SThM) is an attractive tool for high spatial resolution thermal characterization with minimal sample preparation.1 SThM measurements are usually performed in contact-mode, which entails multiple tip-sample heat transfer pathways, i.e. across air gap, liquid meniscus, and the solid contact. These hinder the quantification of the sample temperature or thermal properties or result in large uncertainties.2

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Thermal characterization of fibrous aerogel blanket

MATEC Web of Conferences ◽

10.1051/matecconf/201928201001 ◽

2019 ◽

Vol 282 ◽

pp. 01001 ◽

Cited By ~ 1

Author(s):

Ákos Lakatos ◽

Anton Trnik

Keyword(s):

Thermal Annealing ◽

Thermal Insulation ◽

Thermal Characterization ◽

Insulation Material ◽

Scanning Calorimetry ◽

Solid Materials ◽

Plastic Foams ◽

Isothermal Heat Treatments ◽

New Buildings

Nowadays, the application of thermal insulation materials both by the existing and by new buildings is one of the most important actions in order to reduce the energy loss of buildings. Besides the use of the conventional insulations (plastic foams and wool materials) aerogel is one of the most promising thermal insulation material. Aerogels, one of the lightest solid materials available today, are manufactured through the combination of a polymer with a solvent forming a gel. For buildings the fibre reinforced ones are the mainly used types. It is produced by adding the liquid-solid solution to the fibrous batting. In this paper changes in the thermal performance of the aerogel blanket will be followed after thermal annealing. The samples will be put under isothermal heat treatments at 70 °C for 6 weeks, as well as they will be put under thermal treatment at higher temperatures (from 70 °C till 210 °C) for 1 day. The changes in the thermal conductivity will be followed by Holometrix Lambda heat flow meter, as well as, Differential Scanning Calorimetry results will be presented. From the measured values, thermal properties will be calculated. In this paper we will try to clarify the role played by thermal annealing in thermal diffusivity.

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Characterization of the thermal conductivity of insulating thin films by scanning thermal microscopy

Microelectronics Journal ◽

10.1016/j.mejo.2012.07.006 ◽

2013 ◽

Vol 44 (11) ◽

pp. 1029-1034 ◽

Cited By ~ 18

Author(s):

Séverine Gomès ◽

Pascal Newby ◽

Bruno Canut ◽

Konstantinos Termentzidis ◽

Olivier Marty ◽

...

Keyword(s):

Thin Films ◽

Thermal Conductivity ◽

Scanning Thermal Microscopy ◽

Thermal Microscopy

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Characterization of adhesive penetration in wood bond by means of scanning thermal microscopy (SThM)

Holzforschung ◽

10.1515/hf-2014-0360 ◽

2016 ◽

Vol 70 (4) ◽

pp. 323-330 ◽

Cited By ~ 25

Author(s):

Deliang Xu ◽

Yang Zhang ◽

Handong Zhou ◽

Yujie Meng ◽

Siqun Wang

Keyword(s):

Direct Contact ◽

Phenol Formaldehyde ◽

Transitional Zone ◽

Transitional Region ◽

Scanning Thermal Microscopy ◽

Scale Level ◽

Thermal Microscopy ◽

Micro Scale ◽

Adhesive Penetration

Abstract The penetration characteristics of phenol formaldehyde (PF) resin, modified by two different nanomaterials (PFmod), has been studied by means of scanning thermal microscopy (SThM). The thermal conductivity (ThC) of the two PFmod was lower than that of the cell wall (CW), but the ThC of both PF resins was basically the same. SThM imaging revealed the penetration of parts of PFmod into the CW by a ThC transitional region, which exists between the CW and the resin. In the transitional zone, the ThC changed obviously in a region about 2 μm in width. This region includes two subregions, one about 0.7 μm and another 1.3 μm in width. The first one is the interface, where PFmod and the CW are in direct contact where the ThC changes rapidly. In the second subregion, the PFmod and CW are in interaction, and ThC changes slowly. Regarding the adhesives’ penetration into the cell lumen, the ThC of the penetrating adhesive was higher than that in the glue line, and this is an indication that SThM is a useful tool to detect the differences of adhesive penetration at the micro-scale level.

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