Results 61 to 70 of about 138,401 (319)

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

On the reduction kinetics of coprecipitated NiO-Al2O3 and NiO-La2O3-Al2O3 catalysts

, 2006
Reduction kinetic studies reveal qualitative and quantitative information about reducible NiO species co in the nano-size, coprecipitated NiO-Al2O3 and NiO-La2O3-Al2O3 mixed ...
Li, Wenzhao, Wang, Xiaoguang, Wei, Yongde, Xu, Hengyong, 张建, Zhang, Jian   +5 more
core   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

Advanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim, Kyungjoo Jo, Kwanghyeon Park, Jun Hee Kim, Jong Hyeong Cho, Inhoo Choi, Sei Kwang Hahn   +6 more
wiley   +1 more source

CHARACTERIZATION OF SPECIFIC HEAT CAPACITY OF WATER-ALUMINUM OXIDE-BASED NANOFLUIDS

Rekayasa Mesin
Since the advent of nanofluids, engineers have expected major gains in thermal‐system efficiency. Yet a key property—specific heat capacity (Cp)—remains poorly understood, because Cp is not a single value but a spectrum governed by nanoparticle size ...
Roy Waluyo, Deendarlianto Deendarlianto, Indarto Indarto, Dwi Yuliaji, Sunandi Kharisma, Shendy Akbar Maryadi, Ryan Oktaviandi, Mulya Juarsa   +7 more
doaj   +1 more source

Comparative study of the dry reforming of methane on fluidised aerogel and xerogel Ni/Al2O3 catalysts

The xerogel and aerogel Ni(20 wt %)/Al2O3 catalysts were prepared through incipient-wetness-impregnation and co-precipitation-supercritical drying (CP-SCD), respectively.
Liao, Xin, Zhao, Yongxiang, Jiang, Zheng
core   +1 more source

Electrical characterization of thin film passivation layers for p-type silicon solar cells [PDF]

, 2012
Le celle solari in Silicio monocristallino costituiscono una delle principali tecnologie fotovoltaiche. Uno degli aspetti più limitanti è il prezzo del Silicio: circa il 70% del costo di una cella completa deriva dal substrato siliceo.
Morato, Alessandro
core  

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Síntese e caracterização de compósitos de vitrocerâmica do sistema LZS/A12O3-a para aplicações na tecnologia LTCC [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2013Neste trabalho, misturas de precursor vitrocerâmico particulado (matriz vitrocerâmica)
Arcaro, Sabrina
core  

Effects of CNT Addition on Mechanical Properties, Electric Conductivity and Oxidation Resistance of Al2O3-TiC Composite [PDF]

, 2013
Effects of carbon nanotubes (CNT) addition on mechanical properties, electric conductivity and oxidation resistance of CNT/Al2O3-TiC composite were investigated.
Sano, Hideaki, Morisaki, Junichi, Zheng, Guo Bin, Uchiyama, Yasuo   +3 more
core   +1 more source