Determination of linear thermal expansion coefficient by using digital image correlation

2012 ◽  
pp. 421-425
Author(s):  
J Blom ◽  
J Van Ackeren ◽  
B Belkassem ◽  
J Wastiels
Keyword(s):  
Thermal Expansion ◽  
Digital Image Correlation ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Digital Image ◽  
Linear Thermal Expansion Coefficient ◽  
Linear Thermal Expansion ◽  
Image Correlation

scholarly journals Thermal expansion coefficient determination of polylactic acid using digital image correlation

2018 ◽  
Vol 32 ◽  
pp. 01007 ◽  
Author(s):  
Adrian - Ioan Botean
Keyword(s):  
Thermal Expansion ◽  
Digital Image Correlation ◽  
Thermal Expansion Coefficient ◽  
Polylactic Acid ◽  
Expansion Coefficient ◽  
Digital Image ◽  
Linear Thermal Expansion Coefficient ◽  
Linear Thermal Expansion ◽  
Correlation Method ◽  
Image Correlation

This paper aims determining the linear thermal expansion coefficient (CTE) of polylactic acid (PLA) using an optical method for measuring deformations called digital image correlation method (DIC). Because PLA is often used in making many pieces with 3D printing technology, it is opportune to know this coefficient to obtain a higher degree of precision in the construction of parts and to monitor deformations when these parts are subjected to a thermal gradient. Are used two PLA discs with 20 and 40% degree of filling. In parallel with this approach was determined the linear thermal expansion coefficient (CTE) for the copper cylinder on the surface of which are placed the two discs of PLA.

Study on the Effect of WC Size on the Thermal Expansion Coefficient of WC/Cu Composites

2013 ◽  
Vol 275-277 ◽  
pp. 1597-1600 ◽  
Author(s):  
Hai Yu ◽  
Rong Xin Guo ◽  
Hai Ting Xia ◽  
Feng Yan ◽  
Yu Bo Zhang
Keyword(s):  
Particle Size ◽  
Thermal Expansion ◽  
Powder Metallurgy ◽  
Digital Image Correlation ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Digital Image ◽  
Correlation Method ◽  
Image Correlation ◽  
Powder Metallurgy Method

Abstract: In order to study the effect of WC size on the thermal expansion coefficient of WC/Cu composites after anneal, WC/Cu composites with different WC particle size were prepared by powder metallurgy method. In this paper the thermal expansion coefficient of WC/Cu composites were measured by digital image correlation method. The results show that the thermal expansion coefficient increased with the increasing of temperature and the particle size.

scholarly journals Thermal Properties of Stabilized Zirconia at Low Temperatures

1985 ◽  
Vol 38 (4) ◽  
pp. 617 ◽  
Author(s):  
JG Collins ◽  
SJ Collocott ◽  
GK White
Keyword(s):  
Heat Capacity ◽  
Thermal Expansion ◽  
Thermal Properties ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Low Temperatures ◽  
Linear Thermal Expansion Coefficient ◽  
Linear Thermal Expansion ◽  
Stabilized Zirconia ◽  
Elastic Data

The linear thermal expansion coefficient a from 2 to 100 K and heat capacity per gram cp from 0�3 to 30 K are reported for fully-stabilized zirconia containing a nominal 16 wt.% (9 mol.%) of yttria. The heat capacity below 7 K has been analysed into a linear (tunnelling?) term, a Schottky term centred at 1�2 K, a Debye term (e~ = 540 K), and a small T5 contribution. The expansion coefficient is roughly proportional to T from 5 to 20 K and gives a limiting lattice Griineisen parameter 'Yo ::::: 5, which agrees with that calculated from elastic data.

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