Author
Saeed Sovizi
Bio: Saeed Sovizi is an academic researcher from Sharif University of Technology. The author has contributed to research in topics: Spark plasma sintering & Materials science. The author has an hindex of 5, co-authored 9 publications receiving 239 citations.
Papers
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TL;DR: In this paper, the authors present a critical analysis and overview of the relationship between processing parameters, microstructure, and mechanical properties of LMD components made from the Ti-6Al-4V alloy.
181 citations
TL;DR: In this paper, the potential phase transformations of pure carbon nanotube (CNT) and microstructure evolution, and the novel approaches for uniform dispersion of CNTs inside the metallic matrices including Cu, Al, Ag, Ni, Ti, Mg, and Fe are reviewed.
102 citations
22 Sep 2017
TL;DR: In this article, a broad overview of the mentioned challenges, the way they occur, and their adverse influences on the physicomechanical properties of CNT-reinforced metal matrix nanocomposites are fully addressed.
Abstract: The inclusion of carbon nanotubes (CNTs) into metallic systems has been the main focus of recent literature. The aim behind this approach has been the development of a new property or improvement of an inferior one in CNT-dispersed metal matrix nanocomposites. Although it has opened up new possibilities for promising engineering applications, some practical challenges have restricted the full exploitation of CNTs’ unique characteristics. Non-uniform dispersion of CNTs in the metallic matrix, poor interfacial adhesion at the CNT/metal interface, the unfavorable chemical reaction of CNTs with the matrix, and low compactability are the most significant challenges, requiring more examination. The present paper provides a broad overview of the mentioned challenges, the way they occur, and their adverse influences on the physicomechanical properties of CNT-reinforced metal matrix nanocomposites. The suggested solutions to these issues are fully addressed.
50 citations
TL;DR: In this article, the authors present a variety of methods for producing porou materials from metallic or ceramic micro/nanoporous materials, which have attracted particular attention due to some interesting structural and functional properties.
Abstract: Metallic or ceramic micro/nanoporous materials have attracted particular attention due to some interesting structural and functional properties. There exist a variety of methods for producing porou...
31 citations
TL;DR: A broad overview of these systems is provided and the potential influences of CNTs on their functional and structural properties are addressed and the technical challenges are mentioned and the ongoing debates over overcoming these drawbacks are fully highlighted.
Abstract: Recently, a wide variety of research works have focused on carbon nanotube (CNT)–ceramic matrix nanocomposites. In many cases, these novel materials are produced through conventional powder metallurgy methods including hot pressing, conventional sintering, and hot isostatic pressing. However, spark plasma sintering (SPS) as a novel and efficient consolidation technique is exploited for the full densification of high-temperature ceramic systems. In these binary nanocomposites, CNTs are added to ceramic matrices to noticeably modify their inferior properties and SPS is employed to produce fully dense compacts. In this review, a broad overview of these systems is provided and the potential influences of CNTs on their functional and structural properties are addressed. The technical challenges are then mentioned and the ongoing debates over overcoming these drawbacks are fully highlighted. The structural classification used is material-oriented. It helps the readers to easily find the material systems of interest. The SPSed CNT-containing ceramic matrix nanocomposites are generally categorized into four main classes: CNT–oxide systems; CNT–nitride systems, CNT–carbide systems, and CNT–boride systems. A large number of original curves and bubble maps are provided to fully summarize the experimental results reported in the literature. They pave the way for obviously selecting the ceramic systems required for each industrial application. The properties in consideration include the relative density, hardness, yield strength, fracture toughness, electrical and thermal conductivities, modulus, and flexural strength. These unique graphs facilitate the comparison between reported results and help the reader to easily distinguish the best method for producing the ceramic systems of interest and the optimal conditions under which the superior properties can be reached. The authors have concentrated on the microstructure evolution–physicomechanical property relationship and tried to relate each property to pertinent microstructural phenomena and address why the properties are degraded or enhanced with the variation of SPS conditions or material parameters.
27 citations
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01 Jan 2016
TL;DR: The metal foams a design guide is universally compatible with any devices to read and is available in the book collection an online access to it is set as public so you can get it instantly.
Abstract: Thank you for downloading metal foams a design guide. As you may know, people have look hundreds times for their chosen books like this metal foams a design guide, but end up in malicious downloads. Rather than reading a good book with a cup of coffee in the afternoon, instead they juggled with some infectious virus inside their desktop computer. metal foams a design guide is available in our book collection an online access to it is set as public so you can get it instantly. Our book servers saves in multiple countries, allowing you to get the most less latency time to download any of our books like this one. Merely said, the metal foams a design guide is universally compatible with any devices to read.
320 citations
TL;DR: In this article, the state-of-the-art research on particle reinforced metal matrix nanocomposites (MMNCs) with selective laser melting (SLM) is presented.
309 citations
TL;DR: Spark plasma sintering (SPS) as discussed by the authors is a widely used powder metallurgy technique for high-dimensional materials, where the sample is simultaneously subjected to uniaxial pressure and electrical current in a vacuum or protective atmosphere.
248 citations
TL;DR: In this paper, the authors used Mo2C nanoparticles grown on reduced graphene oxide (Mo2C@RGO) to prepare the 1.5 volumetric ratio of 1.1% Mo2c@rGO/Cu composite, which exhibited a yield strength of 238 MPa, 58% and 127% higher than that of pure Cu and pure Cu, respectively.
Abstract: Mo2C nanoparticles grown on reduced graphene oxide (Mo2C@RGO) were used to prepare the Mo2C@RGO/Cu composite. The Mo2C nanoparticles played a bridging role in not only being firmly attached on RGO but also forming a semi-coherent interface with the Cu matrix, leading to strong interfacial bonding of the composites. The 1 vol% Mo2C@RGO/Cu composite exhibited a yield strength of 238 MPa, 58% and 127% higher than that of 1 vol% RGO/Cu composite and pure Cu, respectively. The strengthening mechanism of Mo2C@RGO/Cu composite relied on the dual role of Mo2C nanoparticles that not only enhanced the load transfer strengthening of RGO but also provided the possible Orowan strengthening themselves. Nevertheless, the Mo2C@RGO/Cu composite showed a drop in coefficient of thermal expansion but a reduced thermal conductivity compared to pure Cu and the RGO/Cu composite. This study provides new insights into the interface structure, strengthening mechanism and thermal behavior of carbide-modified graphene/metal composites.
178 citations
TL;DR: In this article, a near fully dense mullite-TiB2-CNTs hybrid composite was prepared successfully trough spark plasma sintering, which showed uniform distribution of TiB2 reinforcements in mullite matrix without any pores and porosities.
153 citations