scholarly journals Controlled Rate Thermal Analysis (CRTA) as New Method to Control the Specific Surface in Hydroxyapatite Thin Coatings

10.5772/66468 ◽  
2017 ◽  
Author(s):  
E. Peón ◽  
A. El Hadad ◽  
F.R. García-Galván ◽  
A. Jiménez-Morales ◽  
J.C. Galvan
Keyword(s):  
Thermal Analysis ◽  
Specific Surface ◽  
New Method ◽  
Thin Coatings ◽  
Controlled Rate Thermal Analysis

scholarly journals Controlled Rate Thermal Analysis (CRTA) as a Fast and Effective Method for the Development of Ceramic Powders of Synthetic Hydroxyapatite at Low Temperatures

2020 ◽  
Vol 11 (3) ◽  
pp. 11031-11041
Keyword(s):  
Thermal Analysis ◽  
Specific Surface ◽  
Low Temperatures ◽  
X Ray Diffraction ◽  
Ceramic Powders ◽  
Exponential Factor ◽  
Controlled Rate Thermal Analysis ◽  
Surface Areas ◽  
Synthetic Hydroxyapatite ◽  
Kinetic Calculations

One of the main limitations for applying synthetic hydroxyapatite as a filler in cement and other formulations in orthopedic surgery is its morphology. The present work shows the obtaining of synthetic hydroxyapatite powders at low temperatures such as 300 and 850ºC using the Controlled Rate Thermal Analysis (CRTA) technique. The powders obtained were characterized by IR spectroscopy and X-ray diffraction, showing that the phase formed corresponds to crystalline hydroxyapatite. The specific surface area values determined are between 17 and 66 m2/g with a pore size between 50-300 Å. The transformation of phases in the synthetic hydroxyapatite is studied by Dynamic Thermogravimetric Analysis and CRTA techniques, allowing the kinetic calculations of the transformation using two methods of data processing, determining the activation energy (Ea), pre-exponential factor (A), and model kinetic most likely in each stage. The results show the effectiveness and usefulness of the CRTA technique for preparing synthetic hydroxyapatite powders with different specific surface areas, which makes this technique attractive for medical purposes.

scholarly journals Controlled rate thermal analysis of hydromagnesite

2008 ◽  
Vol 92 (3) ◽  
pp. 893-897 ◽  
Author(s):  
Veronika Vágvölgyi ◽  
R. L. Frost ◽  
M. Hales ◽  
A. Locke ◽  
J. Kristóf ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Controlled Rate Thermal Analysis

TEM study of kaolinite thermal decomposition by controlled-rate thermal analysis

1996 ◽  
Vol 31 (19) ◽  
pp. 5069-5075 ◽  
Author(s):  
F. Bergaya ◽  
P. Dion ◽  
J. -F. Alcover ◽  
C. Clinard ◽  
D. Tchoubar
Keyword(s):  
Thermal Analysis ◽  
Thermal Decomposition ◽  
Controlled Rate Thermal Analysis

A New Method for Cable Joints Thermal Analysis

1980 ◽  
Vol PAS-99 (6) ◽  
pp. 2386-2392 ◽  
Author(s):  
M. M. Aziz ◽  
H. Riege
Keyword(s):  
Thermal Analysis ◽  
New Method

scholarly journals Dynamic and controlled rate thermal analysis of hydrozincite and smithsonite

2008 ◽  
Vol 92 (3) ◽  
pp. 911-916 ◽  
Author(s):  
Veronika Vágvölgyi ◽  
M. Hales ◽  
W. Martens ◽  
J. Kristóf ◽  
Erzsébet Horváth ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Controlled Rate Thermal Analysis
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