Results 81 to 90 of about 596 (233)

Unlocking Nanoscale Microstructural Detail in Aluminum Alloys Through Differential Phase Contrast Segmentation in STEM

Small Methods, EarlyView.
Differential phase contrast (DPC) imaging in STEM is demonstrated as a rapid, versatile segmentation tool for advanced aluminum alloys. Decomposition of false‐color DPC micrographs resolves nanoclusters, precipitate variants, dislocation strain fields, nanostructures, and grain boundaries ‐ all within a single and fast acquisition.
Matheus A. Tunes, Martin Hasenburger, Rostislav Daniel, Oscar M. Prada‐Ramirez, Philip Aster, Sebastian Samberger, Thomas M. Kremmer, Johannes A. Österreicher   +7 more
wiley   +1 more source

Microstructural X-Ray Computed Tomography Investigation of the Defect Evolution in Refractory Castings Based on Andalusite

Ceramics
X-ray computed tomography (XRT) has gradually established its position as a non-destructive and, therefore, reproducible three-dimensional (3D) investigation technique, allowing for material- and geometry-independent applications.
Anita Razavi, Vanessa Hopp, Dominik Hahn, Almuth Sax, Peter Quirmbach   +4 more
doaj   +1 more source

Propriedades termo-mecânicas de concretos refratários ligados por sílica coloidal Thermo-mechanical properties of colloidal silica-containing castable

Cerâmica, 2007
Os cimentos de aluminatos de cálcio (CAC) são os ligantes hidráulicos mais utilizados em concretos refratários. No entanto, a presença de CaO em sua composição pode limitar seu uso em elevadas temperaturas nos sistemas Al2O3-SiO2 e Al2O3-MgO.
M. R. Ismael, F. A. O. Valenzuela, L. A. Polito, V. C. Pandolfelli   +3 more
doaj   +1 more source

Chemical potential diagrams as guideline for phase stability and reactivity in cementitious systems

, 2009
Mestrado em Engenharia Cerâmica e do VidroOs cimentos são materiais complexos, cuja constituição tem variado ao longo da história de diferentes civilizações e localização geográfica, devido a limitações tecnológicas ou ao condicionamento das matérias ...
Monteiro, José Filipe Pinto
core  

Analisis Pengaruh Agregat Al2O3 dan Modulus Distribusi Ukuran Partikel Terhadap Sifat Fisik dan Sifat Thermal Refraktori Castable SiC [PDF]

, 2018
Refraktori merupakan bahan yang tahan terhadap panas dan mempertahankan stabilitas fisik dan kimia yang cukup untuk tujuan struktural saat mereka terkena lingkungan dengan suhu tinggi.
Putra, Tio Agathama
core  

System as a Unifying Process: An Onto‐Epistemic Notion of System

Systems Research and Behavioral Science, EarlyView.
ABSTRACT This article proposes an onto‐epistemic notion of system as a relational process of unifying a multiplicity of actuals and abstractions into an actual unity, thereby encompassing concreteness and abstraction onto the same plane. This notion rejects the opposition between constructivism and realism within systems studies, the excessive focus on
Felipe Rodrigues Oliveira e Silva, Sandro Luis Schlindwein   +1 more
wiley   +1 more source

The physical and mechanical properties of alumina-based ultralow cement castable refractories

, 2012
In this study, the effects of the type of alumina on the physical, chemical and mechanical properties of the ultralow cement castable (ULCC) refractories were investigated.
Celikcioglu, O., Gungor, A., Sahin, S.
core   +1 more source

Temperature Monitoring in the Refractory Lining of a Continuous Casting Tundish using Distributed Optical Fiber Sensors

, 2023
This Article Explores the Prospects of using Spatially Distributed Optical Fiber Temperature Sensors based on Rayleigh Optical Frequency Domain Reflectometry (OFDR) Technology in the Continuous Casting of Molten Steel.
Gerald, Rex E., Alla, Dinesh Reddy, Tekle, Hanok, Smith, Jeffrey D., Roman, Muhammad, Huang, Jie, O\u27Malley, Ronald J., Mumtaz, Farhan, Bartlett, Laura   +8 more
core   +1 more source

Additive Manufacturing of Hot‐Work Tool Steel by In Situ Alloying Using Laser Powder Bed Fusion and Directed Energy Deposition—Strategies to Improve Chemical Homogeneity

steel research international, EarlyView.
To support future alloy development a powder mixture is processed by laser additive manufacturing. The powder mixture containing Mo‐ and W‐rich tracers is processed by powder bed fusion using single and double laser exposure and by directed energy deposition which provides drastically enlarged melt pools.
Felix Großwendt, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source

Propriedades relevantes para a otimização da secagem de concretos refratários Key properties for the optimization of drying refractory castables

Cerâmica, 2004
A necessidade de redução do consumo energético tem impulsionado a busca por concretos refratários que possibilitem a diminuição do seu tempo de secagem.
M. M. Akiyoshi, M. D. M. Innocentini, F. A. Cardoso, V. C. Pandolfelli   +3 more
doaj   +1 more source