Cover Page April-2017-Advanced Materials Letters

Advanced Materials Letters

Volume 8, Issue 4, Pages 486-492, April 2017
About Cover


Electronic excitation induced modifications of nanostructured Ni-Ti shape memory alloy thin films

V. Kumar1, R. Singhal1*, R. Vishnoi2, M. Gupta3, P. Sharma1, M. K. Banerjee4, K. Asokan5,  H. Sharma1, A. Gupta6, D. Kanjilal5

1Department of Physics, Malaviya National Institute of Technology Jaipur, JLN Marg, Malviya Nagar, Jaipur 302017, India

2Department of Physics, Vardhman College, Bijnor, U.P. 246701, India

3UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore 452001, India

4Department of Mettalurgical and Materials Engineering, Malaviya National Institute of Technology Jaipur, JLN Marg, Malviya Nagar, Jaipur 302017, India

5Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067, India

6Amity Center for Spintronic Materials, Amity University, Sector 125, Noida 201303, India

Adv. Mater. Lett., 2017, 8 (4), pp 486-492

DOI: 10.5185/amlett.2017.6211

Publication Date (Web): Mar 15, 2017

E-mail: rsinghal.phy@mnit.ac.in

Abstract

In the present work, the effects of 120 MeV Au ion irradiation at different fluences ranging from 1×1012 to 3×1013 ions/cm2 on structural and electrical properties of thin films of Nickel-titanium (Ni-Ti) shape memory alloys (SMAs) grown on Si substrate using DC magnetron co-sputtering is studied. The surface morphology, crystallization and phase transformation behaviour of these films were investigated using field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), X-ray diffraction (XRD) and Four-terminal resistivity measurement method. XRD pattern reveals that both the phases-martensite as well as austenite exist in the pristine film. Resistivity measurements revealed a two way transformation from cubic to rhombohedral and from rhombohedral to monoclinic phase in pristine film and decrease in its transformation temperature with increased fluence. At higher fluences 5×1012 and 1×1013 ions/cm2, films showed non-metallic behaviour which could be due to the disorder occurring in these films due to ion impact and precipitate formation. The elemental composition of pristine film is determined by Rutherford backscattering spectroscopy. 

Keywords

SMA, NiTi, SHI irradiation.

Previous issues

Current Global Scenario of Electric Vehicles

Review on Detection of Phenol in Water 

Investigating the Machinability of Metallic Matrix Composites Reinforced by Carbon Nanotubes: A Review

Photocatalytic ZnO based PES Membranes for AOP Water Treatments under UV and Sunlight

Plasma Activated Water as a Source of Nitrogen for Algae Growth

Digital Light Processing (DLP) 3D Printing of Polyethylene Glycol (PEG) Biopolymer, Commercially available Ultra-High and Tough (UHT) Resin and Maghemite (γ-Fe2O3) Nanoparticles Mixture for Tissue Engineering Scaffold Application

Fabrication of Nanoparticle Embedded Polymeric Microbeads as an Efficient Drug Delivery System

Micro/Nanostructured Papers from Bagasse Pulp Reinforced by Nanofibrillated Cellulose from different Agro-Waste Sources

Structural, Optical and Magnetic Properties of Pristine, (Mn, Al) co-doped ZnO Nanocrystallites Synthesized via co-Precipitation Method

Nanosecond Laser Surface Patterning of Ti6Al4V Bio-alloy for Improved Biological Performance

Synthesis of Cu2O/Ag Composite Nanocubes with Promising Photoluminescence and Photodegradation Activity over Methylene Blue Dye

Locally available Clays of Bangladesh as a Replacement of imported Clays for Ceramic Industries 

Green Synthesis and Characterization of Silver Nanoparticles using Cassia auriculata Leaves Extract and Its Efficacy as A Potential Antibacterial and Cytotoxic Effect

Upcoming Congress

Knowledge Experience at Sea TM