Journal ArticleDOI
Spark plasma sintering of quadruplet ZrB2–SiC–ZrC–Cf composites
TLDR
In this article, a quadruplet ZrB2-SiC-ZrC-Cf ultra-high temperature ceramic matrix composites (UHTCMC) with a constant 4:1 volume ratio was selected as the baseline.About:
This article is published in Ceramics International.The article was published on 2020-01-01. It has received 79 citations till now. The article focuses on the topics: Spark plasma sintering & Zirconium carbide.read more
Citations
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Journal ArticleDOI
Heat transfer and pressure drop in a ZrB2 microchannel heat sink: A numerical approach
Mohammad Vajdi,Farhad Sadegh Moghanlou,Elaheh Ranjbarpour Niari,Mehdi Shahedi Asl,Mohammadreza Shokouhimehr +4 more
TL;DR: In this paper, a micro-channel heat sink made of ZrB2 ceramic is investigated numerically to evaluate its feasibility to operate at such harsh conditions, and the obtained results showed a considerable heat transfer rate from the heated surface.
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Hot pressing and oxidation behavior of ZrB2–SiC–TaC composites
Mahdi Ghassemi Kakroudi,Masoumeh Dehghanzadeh Alvari,Mehdi Shahedi Asl,Nasser Pourmohammadie Vafa,Taher Rabizadeh +4 more
TL;DR: The phase and microstructural investigations revealed that alongside the ZrB2, SiC, and TaC as the starting materials, two new phases of ZrC and TaSi2 were synthesized in-situ during the hot pressing as discussed by the authors.
Journal ArticleDOI
Numerical simulation of heat transfer during spark plasma sintering of zirconium diboride
Milad Sakkaki,Farhad Sadegh Moghanlou,Mohammad Vajdi,Mehdi Shahedi Asl,Mohsen Mohammadi,Mohammadreza Shokouhimehr +5 more
TL;DR: In this paper, the main source of heating in spark plasma sintering is perceived as the Joule heating effect, which is a result of electric current distribution in the setup.
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Solid solution formation during spark plasma sintering of ZrB2–TiC–graphite composites
TL;DR: In this paper, microstructural and phase analysis were carried out via scanning electron microscopy and X-ray diffraction spectroscopy, to illustrate the sintering and toughening mechanisms in the fabricated samples.
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Triplet carbide composites of TiC, WC, and SiC
Mehdi Fattahi,Seyed Ali Delbari,Aziz Babapoor,Abbas Sabahi Namini,Mohsen Mohammadi,Mehdi Shahedi Asl +5 more
TL;DR: In this paper, the influence of adding 0, 10, 20, and 30 vol% SiCw on the microstructure and physical-mechanical properties (relative density, flexural strength, and Vickers hardness) of TiC-3 wt% WCn was investigated.
References
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Journal ArticleDOI
Refractory Diborides of Zirconium and Hafnium
TL;DR: In this article, the crystal chemistry, synthesis, densification, microstructure, mechanical properties, and oxidation behavior of Zirconium diboride (ZrB2) and HfB2 ceramics are reviewed.
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Effects of carbon additives on the properties of ZrB2–based composites: A review
Mehdi Shahedi Asl,Behzad Nayebi,Zohre Ahmadi,Mehran Jaberi Zamharir,Mohammadreza Shokouhimehr +4 more
TL;DR: In this article, the authors present the recent achievements on carbon additives incorporated in ZrB2 ceramics, improved properties, and their advancements, and explore the advantages, disadvantages, and the productivity of the introduced composite materials.
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Processing and characterization of ZrB2-based ultra-high temperature monolithic and fibrous monolithic ceramics
TL;DR: In this paper, Zirconium diboride (ZrB2) based ultra-high temperature ceramics either unmodified or with SiC particulate additions of 10, 20, or 30 volume percent were prepared by conventional hot pressing.
Journal ArticleDOI
Preparation of mullite-TiB2-CNTs hybrid composite through spark plasma sintering
Yasin Orooji,Ehsan Ghasali,Mostafa Moradi,Mohammad Reza Derakhshandeh,Masoud Alizadeh,Mehdi Shahedi Asl,Touradj Ebadzadeh +6 more
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.
Journal ArticleDOI
Co-reinforcing of mullite-TiN-CNT composites with ZrB2 and TiB2 compounds
Yasin Orooji,As’ad Alizadeh,Ehsan Ghasali,Mohammad Reza Derakhshandeh,Masoud Alizadeh,Mehdi Shahedi Asl,Touradj Ebadzadeh +6 more
TL;DR: In this article, the microstructural and mechanical properties of three different mullite matrix composites were investigated, and the results of the fabricated composites showed that Mul-TiN-TiB2-ZrB2 -CNT composites obtained the highest hardness and fracture toughness values.