In this paper binary alloy of Al-Cu with composition Al(100−x)Cux, (x = 10, 15, 20) is prepared b... more In this paper binary alloy of Al-Cu with composition Al(100−x)Cux, (x = 10, 15, 20) is prepared by thermal evaporation method. The prepared samples are annealed at different temperatures and investigated by XRD and microhardness method. XRD has been used to show amorphous state of structures and microhrdness tester show the increase in hardness due to the increase in amount of Al in the alloy. SEM and AFM were also used to show information about the surface of the spe-cimen, resulting some densification and relaxation in these specimens.
... 57 Fe M ssbauer as Correspondence to: Prof. Ajay Gupta, School of Physics, Devi Ahilya Univer... more ... 57 Fe M ssbauer as Correspondence to: Prof. Ajay Gupta, School of Physics, Devi Ahilya University, Khandwa Road, Indore 452 001, India. ... A. Gupta, S. Habibi /Journal of Magnetism and Magnetic Materials 129 (1994) 348-350 different temperatures for 30 min. each. ...
s of Papers in English The use of carbon nanocomposites in designing broadband electromagnetic ab... more s of Papers in English The use of carbon nanocomposites in designing broadband electromagnetic absorbents Mohammad Reza Karami Safdar Habibi Babak Jaleh Received: 2016-04-23 Accept: 2017-10-09 Abstract Normally, carbon compounds have significant electrical absorption in microwave frequencies. To enhance the magnetic absorption of these compounds, nanoparticle impurities such as ferrites, sandast and metal particles are added to them. In this paper, a carbon Nano-composite electromagnetic absorber is proposed. Utilizing the electromagnetic properties of some previous reported carbon Nano-composite materials, the proposed multi-layer absorber is designed in the X band (8.2-12.4 GHz) frequencies. The absorption characteristics of the absorber are calculated by the analytic transmission line method (TLM). The permittivity ( ) and permeability of the Nano-composite materials are derived from previous reported papers. Also, using the modified local particle swarm optimization (MLPSO) meth...
In this paper binary alloy of Al-Cu with composition Al(100−x)Cux, (x = 10, 15, 20) is prepared b... more In this paper binary alloy of Al-Cu with composition Al(100−x)Cux, (x = 10, 15, 20) is prepared by thermal evaporation method. The prepared samples are annealed at different temperatures and investigated by XRD and microhardness method. XRD has been used to show amorphous state of structures and microhrdness tester show the increase in hardness due to the increase in amount of Al in the alloy. SEM and AFM were also used to show information about the surface of the spe-cimen, resulting some densification and relaxation in these specimens.
... 57 Fe M ssbauer as Correspondence to: Prof. Ajay Gupta, School of Physics, Devi Ahilya Univer... more ... 57 Fe M ssbauer as Correspondence to: Prof. Ajay Gupta, School of Physics, Devi Ahilya University, Khandwa Road, Indore 452 001, India. ... A. Gupta, S. Habibi /Journal of Magnetism and Magnetic Materials 129 (1994) 348-350 different temperatures for 30 min. each. ...
s of Papers in English The use of carbon nanocomposites in designing broadband electromagnetic ab... more s of Papers in English The use of carbon nanocomposites in designing broadband electromagnetic absorbents Mohammad Reza Karami Safdar Habibi Babak Jaleh Received: 2016-04-23 Accept: 2017-10-09 Abstract Normally, carbon compounds have significant electrical absorption in microwave frequencies. To enhance the magnetic absorption of these compounds, nanoparticle impurities such as ferrites, sandast and metal particles are added to them. In this paper, a carbon Nano-composite electromagnetic absorber is proposed. Utilizing the electromagnetic properties of some previous reported carbon Nano-composite materials, the proposed multi-layer absorber is designed in the X band (8.2-12.4 GHz) frequencies. The absorption characteristics of the absorber are calculated by the analytic transmission line method (TLM). The permittivity ( ) and permeability of the Nano-composite materials are derived from previous reported papers. Also, using the modified local particle swarm optimization (MLPSO) meth...
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