Cargando…

Influence of Cryomilling on Crystallite Size of Aluminum Powder and Spark Plasma Sintered Component

The present investigation aims to develop nanocrystalline (NC) pure aluminum powders using cryomilling technique and manufacture bulk components using spark plasma sintering (SPS). The cryomilling was performed on pure Al powders for 2, 6, and 8 h. The cryomilled powders were then consolidated using...

Descripción completa

Detalles Bibliográficos
Autores principales: Kushwaha, Amanendra K., Maccione, Raven, John, Merbin, Lanka, Sridhar, Misra, Manoranjan, Menezes, Pradeep L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8838288/
https://www.ncbi.nlm.nih.gov/pubmed/35159896
http://dx.doi.org/10.3390/nano12030551
_version_ 1784650090330193920
author Kushwaha, Amanendra K.
Maccione, Raven
John, Merbin
Lanka, Sridhar
Misra, Manoranjan
Menezes, Pradeep L.
author_facet Kushwaha, Amanendra K.
Maccione, Raven
John, Merbin
Lanka, Sridhar
Misra, Manoranjan
Menezes, Pradeep L.
author_sort Kushwaha, Amanendra K.
collection PubMed
description The present investigation aims to develop nanocrystalline (NC) pure aluminum powders using cryomilling technique and manufacture bulk components using spark plasma sintering (SPS). The cryomilling was performed on pure Al powders for 2, 6, and 8 h. The cryomilled powders were then consolidated using SPS to produce bulk components. The particle morphology and crystallite size of the powders and the bulk SPS components were analyzed using scanning electron microscopy (SEM), X-ray diffraction (XRD), and transmission electron microscopy (TEM). The results showed that the crystallite size of pure Al powders decreases with increased cryomilling time. The results also showed that the SPS at elevated temperatures resulted in a slight increase in crystallite size, however, the changes were insignificant. The mechanical properties of the bulk components were determined using a Vickers microhardness tester. The hardness of the cryomilled SPS component was determined to be three times higher than that of the unmilled SPS component. The mechanism for the reduction in crystallite size with increasing cryomilling time is discussed. This fundamental study provides an insight into the development of bulk nanomaterials with superior mechanical properties for automotive, aerospace, marine, and nuclear applications.
format Online
Article
Text
id pubmed-8838288
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-88382882022-02-13 Influence of Cryomilling on Crystallite Size of Aluminum Powder and Spark Plasma Sintered Component Kushwaha, Amanendra K. Maccione, Raven John, Merbin Lanka, Sridhar Misra, Manoranjan Menezes, Pradeep L. Nanomaterials (Basel) Article The present investigation aims to develop nanocrystalline (NC) pure aluminum powders using cryomilling technique and manufacture bulk components using spark plasma sintering (SPS). The cryomilling was performed on pure Al powders for 2, 6, and 8 h. The cryomilled powders were then consolidated using SPS to produce bulk components. The particle morphology and crystallite size of the powders and the bulk SPS components were analyzed using scanning electron microscopy (SEM), X-ray diffraction (XRD), and transmission electron microscopy (TEM). The results showed that the crystallite size of pure Al powders decreases with increased cryomilling time. The results also showed that the SPS at elevated temperatures resulted in a slight increase in crystallite size, however, the changes were insignificant. The mechanical properties of the bulk components were determined using a Vickers microhardness tester. The hardness of the cryomilled SPS component was determined to be three times higher than that of the unmilled SPS component. The mechanism for the reduction in crystallite size with increasing cryomilling time is discussed. This fundamental study provides an insight into the development of bulk nanomaterials with superior mechanical properties for automotive, aerospace, marine, and nuclear applications. MDPI 2022-02-06 /pmc/articles/PMC8838288/ /pubmed/35159896 http://dx.doi.org/10.3390/nano12030551 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kushwaha, Amanendra K.
Maccione, Raven
John, Merbin
Lanka, Sridhar
Misra, Manoranjan
Menezes, Pradeep L.
Influence of Cryomilling on Crystallite Size of Aluminum Powder and Spark Plasma Sintered Component
title Influence of Cryomilling on Crystallite Size of Aluminum Powder and Spark Plasma Sintered Component
title_full Influence of Cryomilling on Crystallite Size of Aluminum Powder and Spark Plasma Sintered Component
title_fullStr Influence of Cryomilling on Crystallite Size of Aluminum Powder and Spark Plasma Sintered Component
title_full_unstemmed Influence of Cryomilling on Crystallite Size of Aluminum Powder and Spark Plasma Sintered Component
title_short Influence of Cryomilling on Crystallite Size of Aluminum Powder and Spark Plasma Sintered Component
title_sort influence of cryomilling on crystallite size of aluminum powder and spark plasma sintered component
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8838288/
https://www.ncbi.nlm.nih.gov/pubmed/35159896
http://dx.doi.org/10.3390/nano12030551
work_keys_str_mv AT kushwahaamanendrak influenceofcryomillingoncrystallitesizeofaluminumpowderandsparkplasmasinteredcomponent
AT maccioneraven influenceofcryomillingoncrystallitesizeofaluminumpowderandsparkplasmasinteredcomponent
AT johnmerbin influenceofcryomillingoncrystallitesizeofaluminumpowderandsparkplasmasinteredcomponent
AT lankasridhar influenceofcryomillingoncrystallitesizeofaluminumpowderandsparkplasmasinteredcomponent
AT misramanoranjan influenceofcryomillingoncrystallitesizeofaluminumpowderandsparkplasmasinteredcomponent
AT menezespradeepl influenceofcryomillingoncrystallitesizeofaluminumpowderandsparkplasmasinteredcomponent