Results 91 to 100 of about 124,141 (310)

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

Advanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar, Jana Hubálková, Steffen Dudczig, Gert Schmidt, Florian Kerber, Thomas Schemmel, Patrick Gehre, Christos G. Aneziris   +7 more
wiley   +1 more source

Microstructural Investigation into Premature Failure of Compressor Turbine (CT) Blade Material of High Pressure (HP) PT6A-114A Engine

Iranian Journal of Materials Science and Engineering, 2019
This paper investigates premature failure of High Pressure (HP) PT6A-114A Compressor Turbine (CT) blades used for short-haul aircraft fleet at 6378 hours, contrary to 10000 hours pre-set by the manufacturer. The CT blades were sectioned both transversely
J. Ngoret, V. Kommula
doaj  

Anti-Corrosion and Tribo-Mechanical Properties of Co-deposited Zn–SnO2 Composite Coating [PDF]

, 2015
Zn–SnO2 composite coatings were prepared by direct potential using electrolytic co-deposition technique from sulfate solution. The effect of Zn2? and SnO2 concentrations in deposited bath on the mechanical properties and morphological characteristics ...
Fayomi, O. S. I, Popoola, A. P. I.
core  

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

The SEM/EDS analysis of zeolite minerals

, 2021
The SEM/EDS analysis is one of the most important methods for characterizing and determining the morphology of minerals.In scanning electron microscopy (SEM), a highly energetic and focused electron beam scans the sample and normally provides an extremely enlarged image of the morphology of the sample, as well as information on its chemical composition
Mitić, Vojislav V., Mihajlović, Katarina, Kosić, I, Arsenijević, D., Kašić, Vladan   +4 more
openaire   +1 more source

Proveniências no Neolítico; arqueometria em contextos geológicos distintos [PDF]

, 2015
O projeto MEGAGEO visa correlacionar os materiais geológicos usados na construção das antas, durante o Neolítico, com o seu local de extração. Envolve 3 áreas de estudo com contextos geológicos distintos - Lisboa, Freixo-Redondo e Monforte, cuja ...
Almeida, L., Boaventura, R., Machado, S., Mataloto, R., Moita, P., Máximo, J., Nogueira, P., Pedro, J., Pereira, A., Ribeiro, S., Santos, J. F.   +10 more
core  

Carbon nanotubes and xerogels as supports of well dispersed Pt catalysts for environmental applications [PDF]

, 2004
Different types of carbon materials including multi-walled nanotubes (MWNT), carbon xerogels (CX) and activated carbon (AC) were used as supports to prepare platinum catalysts (1% w/w), which were tested in the treatment of aqueous aniline solutions by ...
Faria, Joaquim, Figueiredo, José, Gomes, Helder, Kalck, Philippe, Samant, Purnakala, Serp, Philippe   +5 more
core   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Effects of fireworks ancient celebrations on atmospheric concentration of particulate matter in Iran

Geology, Ecology, and Landscapes, 2020
The Chahar-Shanbe Suri culture in Iran is a significant and direct factor leading to air pollution in Iran. This study investigates why and how “Chahar-Shanbe Suri” culture leads to increased air pollution in Iran.
Balal Oroji, Asghar Sadighzadeh, Eisa Solgi   +2 more
doaj   +1 more source

A Coupled Nanoindentation/SEM-EDS Study on Low Water/Cement Ratio Portland Cement Paste: Evidence for C–S–H/Ca(OH)2 Nanocomposites [PDF]

, 2009
A low water/cement ratio (w/c=0.20) hydrated Portland cement paste was analyzed by grid-indentation coupled with ex situ scanning electron microscope-energy-dispersive X-ray spectra (SEM-EDS) analysis at each indentation point. Because finite element and
Chanvillard, Gilles, Chen, Jeffrey J., Sorelli, Luca, Ulm, Franz-Josef, Vandamme, Matthieu   +4 more
core   +4 more sources