An Analysis of the Structure and Thermal Conductivity of Hollow Microsphere Filled Syntactic Foams
| Autor: | Rositsa Petkova-Slipets, Penka Zlateva |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Environmental Engineering
Materials science Syntactic foam 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Engineering (General). Civil engineering (General) 01 natural sciences 0104 chemical sciences Microsphere Glass microsphere Thermal conductivity ceramic microspheres infrared thermography syntactic foams glass microspheres thermal conductivity Composite material TA1-2040 0210 nano-technology Business management Civil and Structural Engineering |
| Zdroj: | Civil and Environmental Engineering, Vol 15, Iss 1, Pp 36-41 (2019) |
| ISSN: | 2199-6512 1336-5835 |
| Popis: | The influence of types and parameters of hollow microspheres in the composition of syntactic foams on their structure and coefficient of thermal conductivity has been studied. By using structural and thermal analysis it has been found that the volume concentration and the size of the ceramic and glass hollow microspheres have a strong impact on the density and thermophysical properties of the thin syntactic foams coatings. It has been shown that the best heat insulating properties belong to syntactic foam with composition of 60 vol. % ceramic microspheres with particle size of 1 - 40 μm (k = 0.029 W/m·K, R = 0.008 (m2·K)/W) and with composition of 80 vol. % glass hollow microspheres with particle size of 9 - 25 μm (k = 0.087 W/m·K, R = 0.008 (m2·K)/W). The results demonstrate that application of syntactic foams as thin insulating coatings is appropriate and they are an energy efficient material with number of benefits compare with the common thermal insulators. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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