Synthesis of nanocomposites and amorphous alloys by mechanical alloying

C. Suryanarayana; T. Klassen; E. Ivanov

doi:10.1007/s10853-011-5287-0

Synthesis of nanocomposites and amorphous alloys by mechanical alloying

C. Suryanarayana^*
, T. Klassen
, E. Ivanov

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Article › peer-review

78 Scopus citations

Abstract

Mechanical alloying (MA) is a powder metallurgy processing technique that involves repeated cold welding, fracturing, and rewelding of powder particles in a high-energy ball mill. Due to the specific advantages offered by this technique, MA was used to synthesize a variety of advanced materials. This article presents two specific examples of synthesis of nanocomposites containing a high volume fraction of the reinforcement phase in Al and TiAl matrices. It was possible to uniformly disperse 50 vol% of nanometric (50 nm) Al ₂O₃ in Al and achieve high strength and modulus of elasticity. Similarly, it was possible to disperse 60 vol% of Ti ₅Si₃ phase in the γ-TiAl intermetallic. Fully consolidated material showed superplastic behavior at 950°C and a strain rate of 4 × 10^-5 s^-1. Amorphous phases were produced by MA of blended elemental powder mixtures in several Fe-based compositions. From the systematic investigations carried out, it was possible to deduce the criteria for glass formation and understand the interesting phenomenon of mechanical crystallization. By conducting some controlled experiments, it was also possible to explain the mechanism of amorphization in these mechanically alloyed powder blends. Other examples of synthesis of advanced materials, e.g., photovoltaic materials and energetic materials, have also been briefly referred to. This article concludes with an indication of the topics that need special attention for further exploitation of these materials.

Original language	English
Pages (from-to)	6301-6315
Number of pages	15
Journal	Journal of Materials Science
Volume	46
Issue number	19
DOIs	https://doi.org/10.1007/s10853-011-5287-0
State	Published - Oct 2011

Bibliographical note

Funding Information:
Acknowledgements The study reported here is supported by the US National Science Foundation under grants DMR-0314212 and DMR-0334544 and by the Office of Naval Research. The authors also acknowledge fruitful collaboration and useful discussions with Drs. Raj Vaidyanathan, Linan An, and Ruey-Hung Chen of the University of Central Florida, Orlando, USA, Professor Rüdiger Bormann of the Hamburg-Harburg Technical University, Hamburg, Germany, and Dr. S.J. Hong of Kongju National University, Kongju, South Korea. C.S. is also thankful to the experimental input from his graduate students—Pushkar Katiyar, Balaji Prabhu, Satyajeet Sharma, Devender Singh, and UMR Seelam, all from the University of Central Florida.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

Ceramics and Composites
Materials Science (miscellaneous)
General Materials Science
Mechanics of Materials
Mechanical Engineering
Polymers and Plastics

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10.1007/s10853-011-5287-0

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title = "Synthesis of nanocomposites and amorphous alloys by mechanical alloying",

abstract = "Mechanical alloying (MA) is a powder metallurgy processing technique that involves repeated cold welding, fracturing, and rewelding of powder particles in a high-energy ball mill. Due to the specific advantages offered by this technique, MA was used to synthesize a variety of advanced materials. This article presents two specific examples of synthesis of nanocomposites containing a high volume fraction of the reinforcement phase in Al and TiAl matrices. It was possible to uniformly disperse 50 vol\% of nanometric (50 nm) Al 2O3 in Al and achieve high strength and modulus of elasticity. Similarly, it was possible to disperse 60 vol\% of Ti 5Si3 phase in the γ-TiAl intermetallic. Fully consolidated material showed superplastic behavior at 950°C and a strain rate of 4 × 10-5 s-1. Amorphous phases were produced by MA of blended elemental powder mixtures in several Fe-based compositions. From the systematic investigations carried out, it was possible to deduce the criteria for glass formation and understand the interesting phenomenon of mechanical crystallization. By conducting some controlled experiments, it was also possible to explain the mechanism of amorphization in these mechanically alloyed powder blends. Other examples of synthesis of advanced materials, e.g., photovoltaic materials and energetic materials, have also been briefly referred to. This article concludes with an indication of the topics that need special attention for further exploitation of these materials.",

author = "C. Suryanarayana and T. Klassen and E. Ivanov",

note = "Funding Information: Acknowledgements The study reported here is supported by the US National Science Foundation under grants DMR-0314212 and DMR-0334544 and by the Office of Naval Research. The authors also acknowledge fruitful collaboration and useful discussions with Drs. Raj Vaidyanathan, Linan An, and Ruey-Hung Chen of the University of Central Florida, Orlando, USA, Professor R{\"u}diger Bormann of the Hamburg-Harburg Technical University, Hamburg, Germany, and Dr. S.J. Hong of Kongju National University, Kongju, South Korea. C.S. is also thankful to the experimental input from his graduate students—Pushkar Katiyar, Balaji Prabhu, Satyajeet Sharma, Devender Singh, and UMR Seelam, all from the University of Central Florida.",

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N2 - Mechanical alloying (MA) is a powder metallurgy processing technique that involves repeated cold welding, fracturing, and rewelding of powder particles in a high-energy ball mill. Due to the specific advantages offered by this technique, MA was used to synthesize a variety of advanced materials. This article presents two specific examples of synthesis of nanocomposites containing a high volume fraction of the reinforcement phase in Al and TiAl matrices. It was possible to uniformly disperse 50 vol% of nanometric (50 nm) Al 2O3 in Al and achieve high strength and modulus of elasticity. Similarly, it was possible to disperse 60 vol% of Ti 5Si3 phase in the γ-TiAl intermetallic. Fully consolidated material showed superplastic behavior at 950°C and a strain rate of 4 × 10-5 s-1. Amorphous phases were produced by MA of blended elemental powder mixtures in several Fe-based compositions. From the systematic investigations carried out, it was possible to deduce the criteria for glass formation and understand the interesting phenomenon of mechanical crystallization. By conducting some controlled experiments, it was also possible to explain the mechanism of amorphization in these mechanically alloyed powder blends. Other examples of synthesis of advanced materials, e.g., photovoltaic materials and energetic materials, have also been briefly referred to. This article concludes with an indication of the topics that need special attention for further exploitation of these materials.

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Synthesis of nanocomposites and amorphous alloys by mechanical alloying

Abstract

Bibliographical note

UN SDGs

ASJC Scopus subject areas

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