Sridhar Lanka
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Sridhar Lanka has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Amanendra K. Kushwaha
Department of Mechanical Engineering, University of Nevada, Reno, NV 89557, USA
1 shared publication - Manoranjan Misra
Department of Chemical and Materials Engineering, University of Nevada, Reno, NV 89557, USA
1 shared publication - Merbin John
Department of Mechanical Engineering, University of Nevada, Reno, NV 89557, USA
1 shared publication - Pradeep L. Menezes
Department of Mechanical Engineering, University of Nevada, Reno, NV 89557, USA
1 shared publication - Raven Maccione
Department of Mechanical Engineering, University of Nevada, Reno, NV 89557, USA
1 shared publication
Latest Publications
- Open Access
- 6 February 2022
- Published by MDPI AG in Nanomaterials
- Vol. 12 (3) , 551
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 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.
- 6 February 2022
- Published by MDPI AG in Nanomaterials
- Vol. 12 (3) , 551
Open AccessInfluence 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 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.