Influence of High Energy Milling on the Airflow Sensorproperty of the NBCa Ceramic

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Abstract:

Some materials have been applied in many surrounding conditions as sensors, electronic devices and other applications. Inexpensive and reliable temperature and flow measurement are important in many applications including, for example, environmental monitoring and control, indoor air conditioning, weather forecasting, automotive and aerospace systems. Special ceramics are an example of such materials. Neodymium-Barium-Copper is a special ceramic that has high electrical conductivity and airflow sensor characteristics. This property is influenced by high energy milling of the powder, when it is not sintered. To evaluate the influence of this type of milling it was carried out an analysis of particle size as a function of milling time. SEM images and granulometric analysis showed significant reduction of particle size with the increase of milling time. For longer times of milling the mixture of precursor powders is favored, resulting in better homogeneity of the ceramic. This is reflected in the properties of airflow sensor.

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Materials Science Forum (Volumes 727-728)

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499-504

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August 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] S. Noh, E. Lee, J. Seo and M. Mehregany: Sensors and Actuators A Vol. 125 (2006), p.363.

Google Scholar

[2] J.E. Sundeen, R.C. Buchanan: Sens. Actuators A Vol. 63 (1997), p.33.

Google Scholar

[3] X.M. Jing, J.M. Miao, T. Xu, M. Olfatnia and L. Norford: Sensors and Actuators A Vol. 164 (2010), p.22.

Google Scholar

[4] J.M. Nel, F.D. Auret, L. Wu, M.J. Legodi, W.E. Meyer and M. Hayes: Sens. Actuators B Vol. 100 (2004), p.270.

Google Scholar

[5] Y.L. Chen and J. Wen: Building and Environment Vol. 45 (2010), p.1061.

Google Scholar

[6] Q. Zhang, W. Ruan, H. Wang, Y. Zhou, Z. Wang, L. Liu: Sensors and Actuators A Vol. 158 (2010), p.273.

Google Scholar

[7] S. Kim, T. Nam and S. Park: Sens. Actuators A Vol. 114 (2004), p.312.

Google Scholar

[8] A.S. Cubukcua, E. Zernickela, U. Buerklin and G.A. Urban: Sensors and Actuators A Vol. 163 (2010), p.449.

Google Scholar

[9] P. Bruschi, A. Diligenti, D. Navarrini and M. Piotto: Sens. Actuators A Vols. 123–124 (2005), p.210.

Google Scholar

[10] S. Eren O¨ Zcan1; E. Vranken1; W. Van Malcot2; D. Berckmans: Biosystems Engineering Vol. 90 (2) (2005), p.193.

Google Scholar

[11] L.B. Kong, W. Zhu and O.K. Tan: Materials Letters Vol. 42 (2000), p.232.

Google Scholar

[12] C.X. Wua, S.G. Zhua, J. Maab and M.L. Zhanga: Journal of Alloys and Compounds Vol. 478 (2009), p.615.

Google Scholar

[13] I. Ozdemir, S. Ahrensb, S. Mu¨cklichb and Bernhard Wielageb: Journal of Materials Processing Technology Vol. 205 (2008), p.111.

Google Scholar

[14] S. Bhadrakumari and P. Predeep: European Polymer Journal Vol. 45 (2009), p.226.

Google Scholar

[15] Growth mechanism, microstructure, EPMA and Raman studies of pulsed laser deposited Nd1_xBa2+xCu3O7_d thin films.

DOI: 10.1016/j.physc.2005.04.025

Google Scholar