Volume 18, Issue 1 (March 2021)
Abstract
(11569 Views) |
Full-Text (PDF)
(3821 Downloads)
|
Graphical Abstract
|
Highlights
- By mechanical alloying of copper and various alloying elements with different percentages, it is possible to produce nanostructured Cu alloys with nanometer-scale particle size.
- The higher percentage of Al, Al2O3, Cr, and Ti lead to smaller particle sizes. Cu-6wt%Al (38 nm) and Cu-1wt%Al2O3 (954 nm) had the smallest and largest particle size, respectively.
- Titanium, and alumina, had the highest and lowest effects on micro-hardness enhancement, respectively.
- The electrical resistance grew by increasing the amount of the second phase. Cu-1wt%Al and Cu-6wt%Al2O3 had the highest and lowest electrical conductivity, respectively.
Abstract
(10664 Views) |
Full-Text (PDF)
(7481 Downloads)
|
Graphical Abstract
|
Highlights
- Synthesis of CoFe2O4 and CuFe2O4 composited with hematite by impregnation method
- Characterized and by FTIR, XRF, XRD, FESEM, BET, EDS UV-vis, and AAS methods.
- The size of particles was in the nano scale and a good uniformity in the structure.
- Increase in the catalytic ability of hematite nano composites after synthesis
- Catalytic capability investigated by the Fenton reaction with complete removal of methylene blue.
- The samples stability discovered to be excellent by the AAS method.
Abstract
(12693 Views) |
Full-Text (PDF)
(3716 Downloads)
|
Graphical Abstract
|
Highlights
- Finite element analysis has been carried out to investigate the effect of various parameters on axisymmetric extrusion process using aluminum alloy.
- Higher will be the coefficient of friction between interacting surfaces of die-billet assembly, more will be the increment in nodal temperature in billet.
- Higher will be the coefficient of friction, higher will be the generation of heat flux within billet, as this is achieved for highest coefficient of friction.
- Peak nodal temperature diminishes with increase in die profile radius nearly by 17 %.
- Maximum heat flux diminishes non-linearly by 30% with increase in die profile radius.
- Validation of present numerical model is established on the basis of deformation behavior in terms of evolution of nodal temperature distribution upon comparison with previous studies available in literature.
Abstract
(12644 Views) |
Full-Text (PDF)
(7202 Downloads)
Abstract
(17131 Views) |
Full-Text (PDF)
(4217 Downloads)
Abstract
(10545 Views) |
Full-Text (PDF)
(3596 Downloads)
|
Graphical Abstract
|
Highlights
- The predictions of the model are confirmed with high validity for both samarium and lutetium extraction with almost 97 and 98%, respectively.
- The optimum conditions for samarium and lutetium differentiation were identified as: