J
Joseph Paras
Researcher at United States Department of the Army
Publications - 7
Citations - 774
Joseph Paras is an academic researcher from United States Department of the Army. The author has contributed to research in topics: Microstructure & Spark plasma sintering. The author has an hindex of 6, co-authored 7 publications receiving 652 citations. Previous affiliations of Joseph Paras include United States Army Armament Research, Development and Engineering Center & United States Army TACOM Life Cycle Management Command.
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Journal ArticleDOI
Graphene–aluminum nanocomposites
Stephen F. Bartolucci,Joseph Paras,Mohammad A. Rafiee,J. Rafiee,S. L. Lee,Deepak Kapoor,Nikhil Koratkar +6 more
TL;DR: In this article, the composites of graphene platelets and powdered aluminum were made using ball milling, hot isostatic pressing and extrusion and the mechanical properties and microstructure were studied using hardness and tensile tests, as well as electron microscopy, X-ray diffraction and differential scanning calorimetry.
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Mechanical behavior of ultrafine-grained Al composites reinforced with B4C nanoparticles
Zhihui Zhang,Troy D. Topping,Ying Li,R. Vogt,Yizhang Zhou,Christopher D. Haines,Joseph Paras,Deepak Kapoor,Julie M. Schoenung,Enrique J. Lavernia +9 more
TL;DR: In this article, the influence of nanoscale reinforcement on the mechanical behavior of ultrafine-grained composites was studied and it was shown that the presence of nanoparticles enhances strength by interacting with dislocations, while simultaneously retarding grain growth.
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Spark Plasma Sintering of Cryomilled Nanocrystalline Al Alloy - Part II: Influence of Processing Conditions on Densification and Properties
Dongming Liu,Dongming Liu,Yuhong Xiong,Troy D. Topping,Yizhang Zhou,Christopher D. Haines,Joseph Paras,Darold Martin,Deepak Kapoor,Julie M. Schoenung,Enrique J. Lavernia +10 more
TL;DR: In this article, nanostructured Al 5083 powders, which were prepared via cryomilling, were consolidated using spark plasma sintering (SPS), and the influence of processing conditions, e.g., the loading mode, starting microstructure (i.e., atomized vs cryomilled powders) on the consolidation response and associated mechanical properties were studied.
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Spark Plasma Sintering of Cryomilled Nanocrystalline Al Alloy - Part I: Microstructure Evolution
Yuhong Xiong,Dongming Liu,Dongming Liu,Ying Li,Baolong Zheng,Christopher D. Haines,Joseph Paras,Darold Martin,Deepak Kapoor,Enrique J. Lavernia,Julie M. Schoenung +10 more
TL;DR: In this paper, a finite element method was applied to investigate distributions in temperature, current, and stress between metallic powder particles, which revealed that localized heating, deformation, and thermal activation occurring at interparticle regions are associated with the formation of the special microstructure.
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Spark Plasma Sintering of Nanostructured Aluminum: Influence of Tooling Material on Microstructure
Dongming Liu,Dongming Liu,Yuhong Xiong,Ying Li,Troy D. Topping,Yizhang Zhou,Christopher D. Haines,Joseph Paras,Darold Martin,Deepak Kapoor,Julie M. Schoenung,Enrique J. Lavernia +11 more
TL;DR: In this paper, the influence of tooling material on the microstructure of a spark plasma sintering (SPS) consolidated, nanostructured aluminum alloy is studied.