Abstract
Thermal diffusivity and thermal conductivity are
important parameters for determining products thermal work conditions and
production parameters for high quality products. There is two main method for
determining these parameters: steady-state and transient measurement methods.
Laser Flash Method (LFA) is a nonsteady-state measuring method which is widely used
for measuring thermal diffusivity (α) of solid homogeneous and opaque
materials. In this study, thermal diffusivity of A383.1 aluminum alloy
determined with laser flash method depend on temperature. For this, 25.4 mm
diameter and 1 mm thickness experiment specimens prepared from A383.1 aluminum
alloy and measured their thermal diffusivity with LFA method at 30 C° to 400
C°. For calculating thermal conductivity (λ) of materials, test specimen’s
density (ρ) measured with helium pycnometer and heat capacity (Cp) measured
with Differential Scanning Calorimeter (DSC) test device. Thermal diffusivity
and thermal conductivity results obtained from tests and calculations presented
systematically in this paper.
Keywords
Laser flash method Thermal diffusivity Thermal conductivity Aluminum alloys Differential Scanning calorimeter
References
- Altun, O., Boke, Y.E., Kalemtas, A., “Problems for determining the thermal conductivity of TBCs by laser-flash method,” Journal of Achievements in Materials and Manufacturing Engineering, vol. 30 (2), pp. 115-120, 2008. Altun, Ö., Böke, Y.E., “Effect of the microstructure of EB-PVD thermal barrier coatings on the thermal conductivity and the methods to reduce the thermal conductivity,” Archives of Materials Science and Engineering, vol. 40 (1), pp. 47-52, 2009. Altun, Ö., Böke, Y.E., “Mukayese metodu kullanılarak termal bariyer kaplamanın ısı iletim katsayısının deneysel olarak tayin edilmesi,” Erciyes Üniversitesi Fen Bilimleri Enstitüsü Dergisi, vol. 28 (2), pp. 110-115, 2012. An, X., Cheng, J., Yin, H., Xie, L., Zhang, P., “Thermal conductivity of high temperature flüoride molten salt determined by laser flash technique,” International Journal of Heat and Mass Transfer, vol. 90, pp. 872-877, 2015. ASTM International, “Standard Test Method for Thermal Diffusivity by the Flash Method,” E1461-13, 2013. Cape, J.A., Lehman, G.W., “Temperature and finite pulse-time effects in the flash method for measuring thermal diffusivity”, Journal of Applied Physics, vol. 34, pp. 1909-1913, 1963. Koru, M., Serçe, O., “The effects of thermal and dynamical parameters and vacuum application on porosity in high-pressure die casting of A383 Al-Alloy”, International Journal of Metalcasting, vol. 12 (4), pp. 1-17, 2018. Lian, T., Kondo, A., Akoshima, M., Abe, H., Ohmura, T., Tuan, W., Naito, M., “Rapid thermal conductivity measurement of porous thermal insulation material by laser flash method,” Advanced Powder Technology, vol. 27, pp. 882-885, 2016. Linseis Laser Flash Analysis LFA 1000, Linseis Inc., pp. 20, Available: https://www.linseis.com/fileadmin/user_upload/LINSEIS_LFA_1000_v1.pdf Miculescu, M., Coşmematâ, G., Brânzei, M., Miculescu, F., “Thermal diffusivity of materials using flash method applied on CoCr alloys,” U.P.B. Science Bulletin, Series B, vol. 70 (2), pp. 71-81, 2008. Moskal, D., Martani J., Lang, V., Svantner, M., Skála, J., Tesar, J., “Theory and verification of a method for parameter-free laser-flash diffusivity measurement of a single-side object,” International Journal of Heat and Mass Transfer, vol. 102, pp. 574-584, 2016. Vozár, L., Hohenauer, W., “Flash method of measuring the thermal diffusivity. A review,” High Temperatures – High Pressures, vol. 36/36, pp. 253-264, 2003. Yılmaz, R., “Cam seramik matrisli kompozitlerde numune kalınlıklarının ısıl yayınıma etkisi,” Mühendislik ve Fen Bilimleri Dergisi, vol. 1, pp. 73-81, 2004.
Abstract
References
- Altun, O., Boke, Y.E., Kalemtas, A., “Problems for determining the thermal conductivity of TBCs by laser-flash method,” Journal of Achievements in Materials and Manufacturing Engineering, vol. 30 (2), pp. 115-120, 2008. Altun, Ö., Böke, Y.E., “Effect of the microstructure of EB-PVD thermal barrier coatings on the thermal conductivity and the methods to reduce the thermal conductivity,” Archives of Materials Science and Engineering, vol. 40 (1), pp. 47-52, 2009. Altun, Ö., Böke, Y.E., “Mukayese metodu kullanılarak termal bariyer kaplamanın ısı iletim katsayısının deneysel olarak tayin edilmesi,” Erciyes Üniversitesi Fen Bilimleri Enstitüsü Dergisi, vol. 28 (2), pp. 110-115, 2012. An, X., Cheng, J., Yin, H., Xie, L., Zhang, P., “Thermal conductivity of high temperature flüoride molten salt determined by laser flash technique,” International Journal of Heat and Mass Transfer, vol. 90, pp. 872-877, 2015. ASTM International, “Standard Test Method for Thermal Diffusivity by the Flash Method,” E1461-13, 2013. Cape, J.A., Lehman, G.W., “Temperature and finite pulse-time effects in the flash method for measuring thermal diffusivity”, Journal of Applied Physics, vol. 34, pp. 1909-1913, 1963. Koru, M., Serçe, O., “The effects of thermal and dynamical parameters and vacuum application on porosity in high-pressure die casting of A383 Al-Alloy”, International Journal of Metalcasting, vol. 12 (4), pp. 1-17, 2018. Lian, T., Kondo, A., Akoshima, M., Abe, H., Ohmura, T., Tuan, W., Naito, M., “Rapid thermal conductivity measurement of porous thermal insulation material by laser flash method,” Advanced Powder Technology, vol. 27, pp. 882-885, 2016. Linseis Laser Flash Analysis LFA 1000, Linseis Inc., pp. 20, Available: https://www.linseis.com/fileadmin/user_upload/LINSEIS_LFA_1000_v1.pdf Miculescu, M., Coşmematâ, G., Brânzei, M., Miculescu, F., “Thermal diffusivity of materials using flash method applied on CoCr alloys,” U.P.B. Science Bulletin, Series B, vol. 70 (2), pp. 71-81, 2008. Moskal, D., Martani J., Lang, V., Svantner, M., Skála, J., Tesar, J., “Theory and verification of a method for parameter-free laser-flash diffusivity measurement of a single-side object,” International Journal of Heat and Mass Transfer, vol. 102, pp. 574-584, 2016. Vozár, L., Hohenauer, W., “Flash method of measuring the thermal diffusivity. A review,” High Temperatures – High Pressures, vol. 36/36, pp. 253-264, 2003. Yılmaz, R., “Cam seramik matrisli kompozitlerde numune kalınlıklarının ısıl yayınıma etkisi,” Mühendislik ve Fen Bilimleri Dergisi, vol. 1, pp. 73-81, 2004.
Details
| Primary Language | English |
|---|---|
| Subjects | Engineering |
| Journal Section | Articles |
| Authors | |
| Publication Date | December 4, 2018 |
| Published in Issue | Year 2018Issue: 4 |
