Results 101 to 110 of about 28,462 (309)

Synthesis and thermoelectric characterization of Bi2Te3 nanoparticles

open access: yes, 2009
We report a novel synthesis for near monodisperse, sub-10-nm Bi2Te3 nanoparticles. At first, a new reduction route to bismuth nanoparticles is described which are applied as starting materials in the formation of rhombohedral Bi2Te3 nanoparticles.
Bos   +19 more
core   +1 more source

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

open access: yesAdvanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho   +8 more
wiley   +1 more source

Preparation-microstructure-property relationships in double-walled carbon nanotubes/alumina composites [PDF]

open access: yes, 2013
Double-walled carbon nanotube/alumina composite powders with low carbon contents (2– 3 wt.%) are prepared using three different methods and densified by spark plasma sintering.
Estournès, Claude   +4 more
core   +4 more sources

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

open access: yesAdvanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco   +8 more
wiley   +1 more source

Silicon Carbide Ceramics for Armor Applications: A Review of Sintering Methods and Additive Systems

open access: yesMolecules
Silicon carbide (SiC) ceramics are among the most attractive materials for lightweight armor because they combine low density (3.0–3.2 g/cm3), high hardness, and high thermal and chemical stability; however, their densification remains challenging ...
Dauren Zhambakin   +4 more
doaj   +1 more source

Comparative study of spark plasma sintering features on the densification of Ni-Cr binary alloys

open access: yesMATEC Web of Conferences, 2018
Spark plasma sintering (SPS) has been widely regarded as an advanced powder consolidation technique hich helps in the development of array of engineering materials. Many have been reported in the literature about sintering parameters such as temperature,
Babalola B J   +6 more
doaj   +1 more source

Structural, Mechanical and Tribological Properties of Spark Plasma Sintered Ti6Al4V Alloy

open access: yesArchives of Metallurgy and Materials, 2016
The influence of spark plasma sintering parameters on the structural, mechanical and tribological characteristics of the Ti6Al4V alloy, which is used as implant material in biomedical engineering, was investigated. The experimental data confirm that full
Mróz A.   +5 more
doaj   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

open access: yesAdvanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado   +6 more
wiley   +1 more source

Densification and microstructure of spark plasma sintered 7YSZ–Gd2O3 ceramic nano-composites

open access: yesJournal of Asian Ceramic Societies, 2017
Spark plasma sintering (SPS) technique was used to densify 7 mol% yttria-stabilized zirconia (7YSZ) powder with Gd2O3-particles, at temperatures ranging between 1000 and 1200 °C.
E. Serrano Pérez   +4 more
doaj   +1 more source

Bioceramics: spark plasma sintering (SPS) of calcium phosphates [PDF]

open access: yes, 2006
Calcium phosphates (Ca-P) are major constituents of calcified tissues, and are also extensively used for the elaboration of biomaterials. However, the usual high-temperature sintering processes generally lead to strong alterations of their chemical ...
Combes, Christèle   +6 more
core   +1 more source

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