Perforated discs have many applications in different parts of industry. By making such disks of functionally graded materials, more capabilities can be obtained from them. Vibration analysis of these kinds of disks can help us make them more efficient. In this paper, modeling and evaluation of disk vibration of functionally graded materials with regard to thickness were carried out using Abaqus...

The Mössbauer spectra of nanoferrite materials such as Ni0.25Mn0.75Fe2O4, Co0.5Mn0.5Fe2O4 and Ni0.4Co0.6Fe2O4 have been reported and the above materials were prepared by sol-gel combustion method using metal nitrates as source material and Polyvinyl alcohol(PVA) as...

Bioactive materials including glass and glass-ceramics are nowadays used as medical implants for orthopedic applications. In this study several samples of glass-ceramics have been prepared using both heat treatment and sol-gel processes. The structure and bioactivity of these samples based on their interaction with simulated body fluid (SBF) have been determined. In-vitor, using the Raman s...

The objective of this work is to predict the temperature of the different types of walls which are Ferro cement wall, reinforced cement concrete (RCC) wall and two types of cavity walls (combined RCC with Ferrocement and combined two Ferro cement walls) with the help of mathematical modeling. The property of low thermal transmission of small air gap between the constituents of combine materials...

The present study is designed to examine preschool children's (4-5 and 6 years old) attitudes toward unstructured materials and to take their divergent ideas about these materials. Paper napkin, a plastic bottle, bottle lid, toilet paper roll, a piece of white string, a plastic spoon and a 10x10x10 cm3 sized box were used as unstructured materials. 126 children (58 female, 68 male) were selecte...

One of the critical barriers in transitioning new materials development into engineering practice is the uncertainty associated with the data that is used in the materials design process. While constitutive modeling strategies still form the foundations for computational materials design, uncertainty and incomplete information still pervade. Often the available data space is limited, and the ch...

T. Abe, Shin-Etsu Handotai S. Broydo, Applied Materials L. DeVito, Analog Devices, Inc. C. Fine, MIT N. Fiore, Walsin-Lihwa Corporation E. Fitzgerald, MIT S. Fuller, Analog Devices, Inc. M. Gentili, Pirelli F. Giacometti, Pirelli G. Grasso, Pirelli J. Haavisto, Draper Labs F. Hakimi, Draper Labs W. Harshbarger, Applied Materials H. Haus, MIT E. Ippen, MIT J. Joannopoulos, MIT C. Joyce, National...

R. Meyer, 2, ∗ Laurent J. Lewis, S. Prakash, and P. Entel Département de physique et Groupe de Recherche en Physique et Technologie des Couches Mince (GCM), Université de Montréal, C.P. 6128 Succursale Centre-ville, Montréal (Québec), Canada H3C 3J7 Institut für Physik, Universität Duisburg-Essen, Lotharstraße 1, D-47048 Duisburg, Germany Département de physique et Groupe de Recherche en Physiq...

Rajeev Ahuja use state-of-the-art theoretical methods to tackle complex material science systems at a very hight level of detail.