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Ajit Behera
Indian Institute of Technology, Kharagpur
Earth & Planetary Sciences Environmental Science Materials Science & Nanotechnology Mathematics Physics

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Classification of Biomaterials used in Medicine Patitapabana Parida; Ajit Behera; Subash Chandra Mishra
International Journal of Advances in Applied Sciences Vol 1, No 3: September 2012
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (55.595 KB) | DOI: 10.11591/ijaas.v1.i3.pp125-129

Abstract

In this decade many researches are potentially going forward by using biomaterials in the medical field. Biomaterials can used in living creature body, taking in account of there biocompatibility. This paper describes about classification of different biomaterials which are used in medical industries.  Advances in surgical technique and instruments have permitted materials to be used in ways that were not possible previously. Bio-material can partially/totally replaces one or more part of the body. Before using biomaterials, it should in mind that, which categories they are belongs and main focuses are on biocompatibility, bioinert, bioactive/surface reactive, biodegradable, sterilizability, adequate mechanical and physical properties,  manufacturability, low weight, reasonable cost  etc. It is necessary to classify biomaterials for there suitable use in medical industries.
Martensitic Transformation Characteristic of Ni-Mn Based Ferromagnetic Shape Memory Alloys Ajit Behera; Asit Behera; S.C. Mishra
International Journal of Advances in Applied Sciences Vol 2, No 4: December 2013
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (117.936 KB) | DOI: 10.11591/ijaas.v2.i4.pp205-208

Abstract

Ferromagnetic shape memory alloys emerge as new functional materials which have interesting magnetomechanical coupling effects such as the ferromagnetic shape memory effect. These types of materials significantly change their shape and dimensions under the application of external fields i.e. either by using thermal energy or magnetic energy. Among them, some are the magnetostrictive alloys which in turn can change their shape by magnetic field up to 0.1 percent and by mechanical stress up to 10 percent in martensitic state. Up to 6 percent deformation can be obtained in materials under the action of the magnetic field which undergo the thermoelastic transformation into ferromagnetic phase. Due to higher processing cost and costly elements for alloying, ferromagnetic shape memory alloy have not so broadly utilization and satisfactorily use. Among different type of Ni-Mn based Heusler ferromagnetic shape memory alloys, Ni-Mn-Sn alloy have potential properties and exhibits lower cost. In this paper martensitic transformation of Ni50Mn50-ySny (y= 5, 10, 12.5) alloys were investigated. By differential scanning calorimetric measurement, it has been observed that, by keeping one element i.e. Ni as constant weight percentage, if we increase the weight percent of Sn; then martensitic starting temperature as well as austenitic starting temperature gradually decreases.
Co-Authors Asit Behera Patitapabana Parida S.C. Mishra Subash Chandra Mishra