Results 81 to 90 of about 24,004 (308)

Indirect selective laser sintering of an apatite-mullite glass-ceramic [PDF]

open access: yes, 2004
The main objective of this work was to determine the feasibility of using indirect selective laser sintering (SLS) to produce parts for bone replacement applications from glass-ceramic materials.
Goodridge, Ruth Davina
core  

Rapid laser sintering of alkaline fuel cell substrates using integrating mirror [PDF]

open access: yes, 2014
Nickel screens and foams are commonly used in alkaline fuel cell (AFC) as substrates to support electrodes. The methods used for fabrication of these substrates impact significantly on the viability, with the material and processing cost of nickel ...
Jarno J. J. Kaakkunen   +14 more
core   +1 more source

Thermo-mechanical modeling and validation of stress field during laser powder bed fusion of AlSi10Mg built part

open access: yesResults in Physics, 2019
Direct metal laser sintering process is a layer based laser powder bed fusion additive manufacturing process used to fabricate near net shape metallic components directly from the metal powders.
Bibhu Kalyan Panda, Seshadev Sahoo
doaj   +1 more source

Ambient‐Stable Transparent P‐Type CuI Transistors Via Room‐Temperature Pulsed Laser Deposition

open access: yesAdvanced Functional Materials, EarlyView.
An in situ PLD fabricated AlOx${\rm AlO}_x$/CuI/AlOx${\rm AlO}_x$ sandwich structure enables stable CuI TFTs with a field‐effect mobility of 2.3 ±$\pm$ 0.7 cm2${\rm cm}^{2}$ V−1${\rm V}^{-1}$ s−1${\rm s}^{-1}$ and excellent ambient stability. Complementary inverters based on CuI:Rb and ZnO:Al exhibit rail‐to‐rail voltage transfer characteristics and an
Yang Chen   +5 more
wiley   +1 more source

Halide Perovskite Integrated Photovoltaic Cathodes Incorporating Pt on ZIF‐8‐Derived Carbon for Solar Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
A low‐Pt catalyst supported on zeolitic imidazolate framework (ZIF‐8)‐derived porous carbon and graphite is integrated with a halide perovskite photovoltaic, yielding cathodes that achieve a high photocurrent density (∼20 mA cm−2) under simulated sunlight and exhibit remarkable stability in acidic media over several days, thereby demonstrating a ...
Na Yeong Oh   +12 more
wiley   +1 more source

Sinterização seletiva a laser de compósitos com gradiente funcional entre poliamida 12 e nanotubos de carbono aplicáveis no setor aeroespacial [PDF]

open access: yes, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia MecânicaA fabricação rápida de componentes poliméricos é uma alternativa na obtenção de geometrias complexas para as mais ...
Paggi, Rodrigo Acácio
core  

Sinterização de filmes espessos de Ba(Ti0,85Zr0,15)O3 por varredura laser Laser scanning sintering of Ba(Ti0.85Zr0.15)O3 thick films

open access: yesCerâmica, 2009
São apresentados os resultados de sinterização de filmes espessos de BaTi0,85Zr0,15O3 (BTZ15), depositados pela técnica de eletroforese, utilizando como fonte de calor um laser de CO2.
E. Antonelli, A. C. Hernandes
doaj   +1 more source

Catalytically Enhanced Near Room‐Temperature Hydrogen Sensing Using Pd‐ZnO Colloidal Crystals

open access: yesAdvanced Functional Materials, EarlyView.
Pd‐decorated ZnO colloidal crystal monolayers demonstrate excellent performance across a wide hydrogen concentration range at 33°C, with high selectivity and reproducible device fabrication. The sensors show strong responses even at low‐ppm H2 concentrations and an ultra‐low detection limit of 82 ppb, indicating their suitability for diverse hydrogen ...
Hamidah Alluhaybi   +13 more
wiley   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Direct laser sintering of stainless steel : thermal experiments and numerical modelling [PDF]

open access: yes, 2004
SLS is a commercial solid freeform fabrication process. Layers of powder material are bonded by a laser beam to rapidly manufacture three dimensional freeform models.
Taylor, Christopher Martin
core  

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