Elastic wave propagation and scattering in heterogeneous, anisotropic media: Textured polycrystalline materials" (1999). Faculty Publications from Nebraska Center for Materials and Nanoscience. Paper 60. The propagation of elastic waves through heterogeneous, anisotropic media is considered. Appropriate ensemble averaging of the elastic wave equation leads to the Dyson equation which governs th...

This work is a natural extension of the author’s previous work: “Multiple scattering theory for heterogeneous elastic continua with strong property fluctuation: theoretical fundamentals and applications” (arXiv:1706.09137 [physics.geo-ph]), which established the foundation for developing multiple scattering model for heterogeneous elastic continua with either weak or strong fluctuations in mass...

Mechanisms of creep deformation in polycrystalline Ni-base disk superalloys R.R. Unocic a,∗, G.B. Viswanathan a, P.M. Sarosi a, S. Karthikeyan b, J. Li a, M.J. Mills a a Department of Materials Science and Engineering, The Ohio State University, 477 Watts Hall, 2041 College Road, Columbus, OH 43210, USA b Department of Materials Engineering, Indian Institute of Science Bangalore, Karnataka 5600...

Classification systems for all-ceramic materials are useful for communication and educational purposes and warrant continuous revisions and updates to incorporate new materials. This article proposes a classification system for ceramic and ceramic-like restorative materials in an attempt to systematize and include a new class of materials. This new classification system categorizes ceramic rest...

A sophisticated though efficient and accurate multiscale stochastic framework for uncertainty quantification has been developed to investigate the mechanical property variability of polycrystalline materials due to diverse sources of uncertainties. Crystal plasticity constitutive model is employed as the point simulator to capture the mechanical response of polycrystalline microstructures under...

Elastic constants are among the most fundamental properties of materials. Simulations of microstructural evolution and constitutive/micro-mechanistic modeling of materials properties require elastic constants that are predominately measured from single crystals that are labor intensive to grow. A facile technique is developed to measure elastic constants from polycrystalline samples. The techni...

Grain boundaries play a vital role in determining materials behaviour, and the nature of these intercrystalline interfaces is dictated by chemical composition, processing history, and geometry (misorientation and inclination). The interrelation among these variables and material properties may be systematically studied in bicrystals. Conventional bicrystal fabrication offers control over these ...

The nanocrystalline powders and polycrystalline materials on the basis of stabilized zirconia with tetragonal type of structure have been investigated. The forms of the normal vibrations of the tZrO2 have been built using the theory group methods. The peculiarities of experimentally obtained Raman spectra of studied materials have been explained with the help of analysis of symmetry and the for...

We present a review of the basic features of polycrystalline thin-film CdTe solar cells and modules and then survey the outstanding fundamental issues and research challenges for application of this materials system to photovoltaic devices.

We considered the feasibility of utilizing High Dimensional Model Representation (HDMR) technique in the stochastic space to represent the model output as a finite hierarchical correlated function expansion in terms of the stochastic inputs starting from lower-order to higher-order component functions. HDMR is efficient at capturing the high-dimensional input-output relationship such that the b...