Power generation and electric charge density with temperature effect of alumina nanofluids using dimensional analysis

2019 ◽  
Vol 186 ◽  
pp. 546-555 ◽  
Author(s):  
Pi-Hsia Yen ◽  
Jung-Chang Wang
Keyword(s):  
Power Generation ◽  
Charge Density ◽  
Temperature Effect ◽  
Dimensional Analysis ◽  
Electric Charge ◽  
Electric Charge Density

Activation of Hydroxyapatite Crystal Growth on the Surface of Biomimetic Synthetic Apatites through Electrical Polarization

2005 ◽  
Vol 284-286 ◽  
pp. 521-524
Author(s):  
Simone Sprio ◽  
Gian Carlo Celotti ◽  
Elena Landi ◽  
Anna Tampieri
Keyword(s):  
Crystal Growth ◽  
Chemical Composition ◽  
Charge Density ◽  
Electric Charge ◽  
Electrical Polarization ◽  
Natural Bone ◽  
Electric Charge Density ◽  
Hydroxyapatite Crystal ◽  
Thermally Stimulated Depolarization

A series of synthetic apatites bulk samples, characterized by different atomic substitutions were polarized by field of 1 and 2 kV·cm-1 at 300 °C. The thermally stimulated depolarization currents (TSDC) were measured and the stored electric charge density evaluated. The recent development in the synthesis of non-stoichiometric HA powders, whose chemical composition resembles that of the natural bone, is promising for the realization of improved biomimetic implants for bone substitution; therefore, electrical polarization applied on the ceramic pieces could further enhance the already strong bioactivity of these materials. The depolarization processes in the various material were evaluated by the Arrhenius’ method and related with the corresponding chemical features; finally, SEM observations of some polarized samples immersed in SBF at 37 °C revealed a wide growth of HA particles within a few days in all the investigated materials.

The measurement of surface electric charge density

1999 ◽  
Vol 42 (8) ◽  
pp. 790-793
Author(s):  
V. I. Tokatly ◽  
V. A. Tishchenko ◽  
V. I. Luk'yanov
Keyword(s):  
Charge Density ◽  
Electric Charge ◽  
Electric Charge Density
Sign in / Sign up

Export Citation Format

Share Document