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Prepared Material

About: Prepared Material is a research topic. Over the lifetime, 1507 publications have been published within this topic receiving 6896 citations.


Papers
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Journal ArticleDOI
TL;DR: Amorphous MnO2 was synthesized using the sol-gel method by reduction of NaMnO4 with solid fumaric acid as mentioned in this paper, and the synthesized product was characterized using X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, and chemical analysis.

328 citations

Journal ArticleDOI
TL;DR: The structural, morphological and electrochemical properties of the hydrothermally prepared manganese oxide (MnO 2 ) nanostructures are discussed in this article.

326 citations

01 Jan 2012
TL;DR: In this article, the same material was prepared by laboratory scale extrusion of cryo-chopped melt-spun ribbons as a reference material and the long-term thermal stability of compacts was proven.
Abstract: a b s t r a c t The rapidly solidified AlCr4.7Fe1.1Si0.3 (at.%) alloy produced at large scale by direct extrusion of gas atomised powders was investigated. Hot-extrusion yielded sound compacts and did not create any major structural changes compared to the as-atomised state. Microstructural characterisation of the as-extruded material revealed submicron scale -Al grains with an embedded Al7Cr crystalline phase and traces of a nano-scale quasicrystalline Al84.6Cr15.4 phase. The long-term thermal stability up to 300 ◦C of compacts was proven. The thermal stability of compacts was accompanied by high mechanical prop- erties, especially high strength and Young's modulus, and creep performance up to 300 ◦C. The same material was prepared by laboratory scale extrusion of cryo-chopped melt-spun ribbons as a reference material. No major differences in the structure or properties of the industrially prepared material were observed compared to the reference material.

225 citations

Journal ArticleDOI
TL;DR: In this article, a simple microwave heating technique involving the use of a microwave susceptor to provide the initial heat source was used to obtain phase pure, Ce3+substituted garnet compounds in under 20 min of reaction time.
Abstract: Ce3+-substituted aluminum garnet compounds of yttrium (Y3Al5O12) and lutetium (Lu3Al5O12)—both important compounds in the generation of (In,Ga)N-based solid state white lighting—have been prepared using a simple microwave heating technique involving the use of a microwave susceptor to provide the initial heat source. Carbon used as the susceptor additionally creates a reducing atmosphere around the sample that helps stabilize the desired luminescent compound. High quality, phase-pure materials are prepared within a fraction of the time and using a fraction of the energy required in a conventional ceramic preparation; the microwave technique allows for a reduction of about 95% in preparation time, making it possible to obtain phase pure, Ce3+-substituted garnet compounds in under 20 min of reaction time. It is estimated that the overall reduction in energy compared with ceramic routes as practised in the lab is close to 99%. Conventionally prepared material is compared with material prepared using microwav...

171 citations

Journal ArticleDOI
TL;DR: In this article, a Co 3 O 4 /graphene nanocomposite material was prepared by an in situ solution-based method under reflux conditions, and the prepared composite material exhibited an initial reversible lithium storage capacity of 722mg −1 in lithium-ion cells and a specific supercapacitance of 478f g − 1 in 2m KOH electrolyte for super-capacitors.

150 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202122
202082
2019188
2018203
2017203
2016168