SelectedWorks - Surendra N. Tewari

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Selected Works of Surendra N. Tewari

Professor of Chemical & Biomedical Engineering

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About Surendra N. Tewari

Present	Professor of Chemical & Biomedical Engineering, Cleveland State University
Institution Organization Position Type Position Title Time Period to Options Current Position Affiliate my profile with this Institution

Fenn College of Engineering Faculty Webpage

Office: SH 464
Phone: 216-523-7342

Articles (34)

EBC Development for Hot-Pressed Y2O3/Al2O3 Doped Silicon Nitride Ceramics

Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing (2010)

Sivakumar Ramasamy, Surendra N. Tewari, Kang N. Lee, Ramakrishna T. Bhatt, et al.

Multilayer EBCs of alcohol and sol-based slurries containing (a) 45% SiO2-34% Y2O3-%Al2O3, (b) mullite/Gd2SiO5 (88/12wt.%) with and without B2O3 addition, ...

Effect of Synthesis Time and Treatment on Porosity of Mesoporous ...

Adsorption-Journal of the International Adsorption Society (2009)

Asli Ertan, Pradeep Kodumuri, Orhan Talu and Surendra N. Tewari

Nitrogen adsorption at 77 K on mesoporous silica materials (MPS) with varying synthesis time and treatment conditions was investigated. Scanning ...

Electrodeposition of Nickel Nanowires and Nanotubes Using Various Templates

Journal of Experimental Nanoscience (2008)

Asli Ertan, Surendra N. Tewari and Orhan Talu

Nickel nanotubes and nanowires are grown by galvanostatic electrodeposition in the pores of 1000, 100, and 15 nm polycarbonate as ...

Mushy-Zone Rayleigh Number to Describe Macrosegregation and Channel Segregate Formation ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (2004)

Surendra N. Tewari, R. Tiwari and G. Magadi

A recently defined mushy-zone Rayleigh number (R-aM) that includes side-branching contributions to the mushy-zone permeability has been examined for its ...

A Comparison Between Growth Morphology of "Eutectic" Cells/Dendrites and ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (2004)

Surendra N. Tewari, S. V. Raj and L. E. Locci

Directionally solidified (DS) intermetallic and ceramicbased eutectic alloys with an in-situ composite microstructure microstructure containing finely distributed, long aspect ratio, ...

Effect of Crucible Diameter Reduction on the Convection, Macrosegregation, and ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (2003)

Jun Chen, Surendra N. Tewari, G. Magadi and H. C. DeGroh

The Pb-2.2 wt pct Sb alloy has been directionally solidified in 1, 2-, 3-, and 7-mm-diameter crucibles with planar and ...

A Mushy-Zone Rayleigh Number to Describe Interdendritic Convection During Directional ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (2003)

Surendra N. Tewari and R. Tiwari

Based on measurements of the specific dendrite surface area (S-nu), fraction of interdendritic liquid (phi), and primary dendrite spacing (lambda(1)) ...

The Effect of Convection on Disorder in Primary Cellular and ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (2002)

R. Trivedi, P. Mazumder and Surendra N. Tewari

Directional solidification studies have been carried out to characterize the spatial disorder in the arrays of cells and dendrites. Different ...

Primary Dendrite Distribution and Disorder During Directional Solidification of Pb-Sb ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (2002)

Jun Hui, R. Tiwari, X. Wu, Surendra N. Tewari, et al.

Pb-2.2 wt pct Sb and Pb-5.8 wt pet Sb alloys have been directionally solidified from a single-crystal seed with its ...

Compressive Properties of Zone-Directionally Solidified β-NiAl and Its Off-Eutectic Alloys ...

Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing (2002)

R. Asthana, R. Tiwari and Surendra N. Tewari

The ordered intermetallic compound β-NiAl and its pseudo-binary off-eutectic alloys with 1 at.% tungsten and 9.7 at.% chromium were directionally ...

Cellular Array Morphology During Directional Solidification

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (2002)

Surendra N. Tewari, Y-Husuan Weng, G. L. Ding and R. Trivedi

Cellular array morphology has been examined in the shallow cell, deep cell, and cell-to-dendrite transition regime in Pb-2.2 wt pct ...

Mushy Zone Morphology During Directional Solidification of Pb-5.8 Wt ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (2000)

L. Yu, G. L. Ding, J. Reye, S. N. Ojha, et al.

The Pb-5.8 wt pet Sb alloy was directionally solidified with a positive thermal gradient of 140 K cm(-1) at a ...

Reactive Infiltration of Silicon Melt Through Microporous Amorphous Carbon Preforms

Metallurgical and Materials Transactions B: Physical Metallurgy and Materials Science (1999)

P. Sangsuwan, Surendra N. Tewari, Jorge E. Gatica, M. Singh, et al.

The kinetics of unidirectional capillary infiltration of silicon melt into microporous carbon preforms has been investigated as a function of ...

Cellular/Dendritic Array Tip Morphology During Directional Solidification of Pb-5 ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (1999)

L. Yu, G. L. Ding, J. Reye, S. N. Ojha, et al.

Cellular/dendritic array tip morphology has been examined in directionally solidified and quenched Pb-5.8 wt pet Sb alloy by a serial ...

Cell/Dendrite Distribution in Directionally Solidified Hypoeutectic Pb-Sb Alloys

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (1999)

S. P. O'Dell, G. L. Ding and Surendra N. Tewari

The alloys Pb-2.2 wt pet Sb and Pb-5.8 wt pet Sb were directionally solidified with three different thermal gradients of ...

Macrosegregation Caused by Thermosolutal Convection During Directional Solidification of Pb-Sb ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (1999)

S. N. Ojha, G. L. Ding, Y. Lu, J. Reye, et al.

Pb-2.2 and 5.8 wt pet Sb alloys were directionally solidified with a positive thermal gradient of 140 K cm(-1) at ...

Copper Alloy-Impregnated Carbon-Carbon Hybrid Composites for Electronic Packaging Applications

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (1999)

S. K. Datta, Surendra N. Tewari, Jorge E. Gatica, W. Shih, et al.

Porous carbon-carbon preforms, based on three-dimensional networks of PAN (Polyacrylonitrile)-based carbon fibers and various volume fractions of chemical vapor-deposited (CVD) ...

Strength Degradation of Sapphire Fibers During Pressure Casting of a ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (1998)

R. Asthana, Surendra N. Tewari and S. L. Draper

Transient-liquid-phase (TLP) bonding was used to fabricate a Haynes 230 Ni-base superalloy/sapphire fiber composite for high-temperature applications. Boron was used ...

Dynamic Analysis of Unidirectional Pressure Infiltration of Porous Preforms by ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (1998)

Dhiman K. Biswas, Jorge E. Gatica and Surendra N. Tewari

Unidirectional pressure infiltration of porous preforms by molten metals is investigated numerically. A phenomenological model to describe fluid flow and ...

Permeability of Microporous Carbon Preforms

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (1996)

S. K. Datta, N. Simhai, Surendra N. Tewari, Jorge E. Gatica, et al.

The permeability of microporous amorphous carbon preforms with varying pore size and pore distributions has been experimentally examined. The porous ...

Wear and Friction Behavior of Metal Impregnated Microporous Carbon Composites

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (1996)

Gultekin Goller, D. P. Koty, Surendra N. Tewari, M. Singh, et al.

Metal-matrix composites have been prepared by pressure-infiltration casting of copper-base alloy melts into microporous carbon preforms. The carbon preforms contained ...

Macrosegregation During Dendritic Arrayed Growth of Hypoeutectic Pb-Sn Alloys: Influence ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (1996)

Surendra N. Tewari and Rajesh Shah

Thermosolutal convection in the dendritic mushy zone occurs during directional solidification of hypoeutectic lead tin alloys in a positive thermal ...

Convection During Thermally Unstable Solidification of Pb-Sn in a Magnetic ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (1996)

Hui Song, Surendra N. Tewari and H. C. DeGroh

Convection and macrosegregation in directionally solidified hypoeutectic Pb-38 wt pct Sn and hypereutectic Pb-64.5 wt pct Sn have been examined ...

Time Dependence of Tip Morphology During Cellular Dendritic Arrayed Growth

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (1996)

Hui Song and Surendra N. Tewari

Succinonitrile-1.9 wt pct acetone has been directionally solidified in 0.7 X 0.7-cm-square cross section pyrex ampoules in order to observe ...

Influence of Cr and W Alloying on the Fiber-Matrix Interfacial ...

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science (1995)

R. Asthana, R. Tiwari and Surendra N. Tewari

Sapphire-reinforced NiAl matrix composites with chromium or tungsten as alloying additions were synthesized using casting and zone directional solidification (DS) ...