Journal ArticleDOI
Fabrication, Mechanical Properties, and Electrical Conductivity of Co3O4 Ceramics
Reads0
Chats0
TLDR
In this article, a well-densified Co{sub 3}O{sub 4} ceramics (98.3% of theoretical) have been fabricated by the combined use of hot pressing (800 C/1 h/30 MPa) and hot isostatic pressing (880 C/2 h/196 MPa).Abstract:
Well-densified Co{sub 3}O{sub 4} ceramics (98.3% of theoretical) have been fabricated by the combined use of hot pressing (800 C/1 h/30 MPa) and hot isostatic pressing (880 C/2 h/196 MPa). Their Vickers hardness and fracture toughness are 10.3 GPa and 4.2 MPa{center_dot}m{sup 1/2}, respectively. They exhibit a high electrical conductivity of 3.35 {times} 10{sup 1}S{center_dot}cm{sup {minus}1} at 800 C.read more
Citations
More filters
Journal ArticleDOI
A Review on Design Strategies for Carbon Based Metal Oxides and Sulfides Nanocomposites for High Performance Li and Na Ion Battery Anodes
Yi Zhao,Luyuan Paul Wang,Moulay Tahar Sougrati,Zhenxing Feng,Yann Leconte,Adrian Fisher,Madhavi Srinivasan,Zhichuan J. Xu +7 more
TL;DR: In this article, the authors present and discuss the development of carbon-based nanocomposite anodes in both Li ion batteries and Na ion batteries, focusing on strategies employed in fabricating such composites, with examples such as yolkshell structure, layered-by-layered structure, and composite comprising one or more carbon matrices.
Journal ArticleDOI
Nanostructured electrodes for lithium-ion and lithium-air batteries: the latest developments, challenges, and perspectives
TL;DR: In this paper, the authors provide an overview of the critical scientific challenges facing the development of advanced batteries, various unique attributes of nanostructures or nano-architectures applicable to lithium-ion and lithium-air batteries, the latest developments in novel synthesis and fabrication procedures, the unique capabilities of some powerful, in situ characterization techniques vital to unraveling the mechanisms of charge and mass transport processes associated with battery performance, and the outlook for future-generation batteries that exploit nanoscale materials for significantly improved performance to meet the everincreasing demands of emerging technologies.
Journal ArticleDOI
Reduction of chromium vaporization from SOFC interconnectors by highly effective coatings
Michael Stanislowski,Jan Froitzheim,Leszek Niewolak,Willem J. Quadakkers,K. Hilpert,Thorsten Markus,Lorenz Singheiser +6 more
TL;DR: In this paper, the vaporization of Cr species of a variety high chromium alloys was studied at 800 °C in air using the transpiration method, and the measured release of the different alloys were correlated with the formed outer oxide scales.
Journal ArticleDOI
Size-Controlled Growth of Co3O4 Nanocubes
Ji Feng,Hua Chun Zeng +1 more
TL;DR: In this paper, a nitrate-salt-mediated formation route of Co3O4 spinel nanocubes with a uniform size of ca. 47 nm in aqueous solution at 95 °C was investigated.
Journal ArticleDOI
Electrical conductivity of Co3O4 films prepared by chemical vapour deposition
TL;DR: In this paper, polycrystalline Co3O4 films were prepared by normal pressure chemical vapour deposition, and the d.c. electrical conduction was investigated at temperatures from 170 to 400 K. The Seebeck coefficient indicated the films to be p-type semiconductors.
References
More filters
Journal ArticleDOI
Evaluation ofKIc of brittle solids by the indentation method with low crack-to-indent ratios
Journal ArticleDOI
Ceramic coatings for advanced heat engines - A review and projection
TL;DR: In this article, the authors assess the current status and future potential for the application of ceramic coatings in advanced diesel and turbine engines, and assesses the current and potential applications of ceramics.
Journal ArticleDOI
A chemical method for preparation of cobalt oxide thin films
A.J. Varkey,A.F. Fort +1 more
TL;DR: In this article, a simple method has been developed for the preparation of cobalt oxides, CoO(OH) and Co3O4, thin films on glass substrates using cobalt(II) chloride and ammonia as reacting agents.