scholarly journals Structural and Morphological Studies of Nano-Crystalline Ceramic BaSr0.9Fe0.1TiO4

2015 ◽  
Vol 44 ◽  
pp. 95-107 ◽  
Author(s):  
Reenu Jacob ◽  
Harikrishnan G. Nair ◽  
Jayakumari Isac
Keyword(s):  
Morphological Studies ◽  
Nano Crystalline ◽  
Crystalline Ceramic

MATERIAL CHARACTERIZATION OF SUPERCONDUCTING NANO CRYSTALLINE CERAMIC YSrBiCuO BY THERMAL TECHNIQUES

2015 ◽  
Vol 7 (1) ◽  
pp. 1352-1358
Author(s):  
Jayakumari Isac ◽  
Anusha Mony ◽  
Harikrishnan G. Nair ◽  
Reenu Jacob ◽  
Sheelakumari Issac ◽  
...  
Keyword(s):  
Material Characterization ◽  
High Energy ◽  
Milling Process ◽  
Chemical Formula ◽  
Solid State Reaction Technique ◽  
Nano Crystalline ◽  
Energy Ball ◽  
Crystalline Ceramic ◽  
Thermal Techniques

The nano-sized ceramic superconducting material YSBCO having  perovskite structure was prepared according to the chemical formula by the thermo chemical solid state reaction technique using a high-energy ball milling process through mechanically assisted synthesis. It was characterized by XRD, SEM and EDX. Here the authours studied the thermal characterization  using  TGA, DTA and DSC.

scholarly journals THERMOGRAVIMETRIC ANALYSIS OF NANO CRYSTALLINE CERAMIC PbSrCaCuO

2014 ◽  
Vol 10 (7) ◽  
pp. 2916-2920 ◽  
Author(s):  
Reenu Jacob ◽  
Jayakumari Isac
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Thermogravimetric Analysis ◽  
Elemental Composition ◽  
High Energy ◽  
Milling Process ◽  
Nano Crystalline ◽  
State Technique ◽  
Energy Ball ◽  
Crystalline Ceramic

Nano crystalline ceramic PbSrCaCuO was prepared by the solid state technique via a high-energy ball milling process through mechanically assisted synthesis.The prepared sample was then subjected to calcinations to acquire the desired homogeneity and phase formation. To establish the elemental composition EDX analysis was done.TGA and DTA were used to study the behaviour of the sample upon heating to a high temperature.

scholarly journals Studies on Nano Crystalline Ceramic Superconductor LaZrYBaCa<sub>2</sub>Cu<sub>3</sub>O<sub>11</sub> at Three Different Temperatures

2014 ◽  
Vol 04 (02) ◽  
pp. 126-133
Author(s):  
Anitha S. Nair ◽  
Vinila V. S. ◽  
Sheelakumari Issac ◽  
Reenu Jacob ◽  
Anusha Mony ◽  
...  
Keyword(s):  
Ceramic Superconductor ◽  
Nano Crystalline ◽  
Different Temperatures ◽  
Crystalline Ceramic

Application of MDO technology for internal combustion engines

2021 ◽  
pp. 37-41
Author(s):  
A. V. Chavdarov
Keyword(s):  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Ceramic Coatings ◽  
Combustion Engines ◽  
Repair Work ◽  
Nano Crystalline ◽  
Micro Arc Oxidation ◽  
Restoration Work ◽  
Crystalline Ceramic

The prospects of using nano-crystalline ceramic coatings on internal combustion engine parts obtained by micro-arc oxidation (MDO) technology are considered. The tendency of development of engine building on replacement of cast-iron blocks and sleeves on aluminum with the special coverings received by galvanic methods is shown. It is noted that this direction does not involve the use of repair technologies, which significantly affects consumers. Analysis and practical tests have shown the possibility of using MDO technology both in the manufacture of engine parts and for the performance of restoration work. It is concluded that it is necessary to introduce this technology into the mass production of engines and pistons, as well as the need to develop a set of equipment for repair work.

In situ growth of ZrO2–Al2O3 nano-crystalline ceramic coatings via micro arc oxidation of aluminum substrates

2012 ◽  
Vol 47 (6) ◽  
pp. 1494-1499 ◽  
Author(s):  
V. Shoaei-Rad ◽  
M.R. Bayati ◽  
H.R. Zargar ◽  
J. Javadpour ◽  
F. Golestani-Fard
Keyword(s):  
Ceramic Coatings ◽  
In Situ Growth ◽  
Nano Crystalline ◽  
Micro Arc Oxidation ◽  
Crystalline Ceramic ◽  
Aluminum Substrates

scholarly journals Morphological Studies of Polyphosphazenes and their Nano-Composites Using Solid-State Nuclear Magnetic Resonance Spectroscopy

2013 ◽  
Vol 704 ◽  
pp. 235-240
Author(s):  
Chu Chu Sun ◽  
Paul Hazendonk ◽  
Alexey S. Borisov ◽  
Paul G. Hayes
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Ring Opening ◽  
Inorganic Nanoparticles ◽  
Resonance Spectroscopy ◽  
Heat Cycling ◽  
Morphological Studies ◽  
Nano Crystalline ◽  
Heat Treated ◽  
Solvent Cast

Poly[bis(trifluoroethoxy)phosphazene] (PBFP) can be prepared via thermal ring-opening polymerization (ROP) of hexachlorotriphosphazene ((PNCl2)3) or ambient temperature cationic living polymerization (ALP) of monomeric Cl3P=NSiMe3, followed by introduction of OCH2CF3 groups via standard salt metathesis protocols. The resultant polymer morphology is dependent upon synthetic methodology, processing method (e.g. solvent casting, heat cycling, etc.) and the presence of inorganic nanoparticles, which were found to inhibit crystallization. 1H, 19F and 31P solid-state NMR spectroscopy was employed to investigate crystallization in solvent cast and heat-treated samples of pure PBFP and composites of nano-crystalline TiO2 doped PBFP.

scholarly journals BANDGAP ANALYSIS OF NANO CRYSTALLINE L0.1ZY0.9BCCO CERAMICS

2016 ◽  
Vol 11 (7) ◽  
pp. 3742-3750
Author(s):  
Dr. Jaya Kumari Isac ◽  
Anitha S. Nair ◽  
Reenu Jacob ◽  
Sheela Kumari Issac ◽  
Sam Rajan ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Energy ◽  
Band Gap Energy ◽  
Milling Process ◽  
Tauc Plot ◽  
Nano Crystalline ◽  
Single Oscillator ◽  
Yttrium Barium ◽  
Energy Ball ◽  
Crystalline Ceramic

Crystalline Ceramic Lanthanum Zirconium Yttrium barium Calcium Copper oxide(L0.1ZY0.9BCCO)  was prepared by a high-energy ball milling process through mechanically assisted synthesis at a high temperature to acquire the desired homogeneity and phase formation. Inorder to study the optical properties like reflectivity, absorptivity, refractive index, the UV-VIS analysis of the above nonstochiometric sample was carried out. The dispersion of refractive index was analyzed by the Wemple-DiDomenico single-oscillator model.The band gap energy of the sample was elucidated from the Tauc plot. The refractive index n was calculated and  the results obtained are plotted  with the wavelength. 

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