Results 91 to 100 of about 3,096 (300)

The effect of aggregate aspect ratio and temperature on the fracture toughness of a low cement refractory concrete

open access: yesMaterials Research, 2003
This work investigated the influence of the aggregate's aspect ratio on the fracture behavior of a low cement aluminum silicate refractory castable treated at two different temperatures (110 °C and 1000 °C).
Laura Brum Prata   +2 more
doaj   +1 more source

Lightweight refractory insulation and method of preparing the same Patent [PDF]

open access: yes, 1970
Preparation and characteristics of lightweight refractory ...
Mountvala, A. J.   +2 more
core   +1 more source

Measurement the thermal profile of steelmaking ladle with subsequent evaluation the reasons of lining damage [PDF]

open access: yes, 2016
Based on the operational measurement, of which content was to determine ladle thermal profile, there were analysed causes of possible damage of lining in steel ladles by steel breakout through the ladle shell.
Burda, Jiří   +5 more
core   +1 more source

A Thermodynamic‐Kinetic Model for Basic Oxygen Furnace Tapping: Improved Prediction of Phosphorus and Steel‐Slag Evolution

open access: yessteel research international, EarlyView.
This study develops a thermodynamic–kinetic model for basic oxygen furnace tapping and validates its accuracy under near‐equilibrium and far‐from‐equilibrium initial conditions. Comparison with a reference model demonstrates its broader applicability. The model further reveals the evolution of key steel and slag components, providing new transparency ...
Puhong Cheng   +4 more
wiley   +1 more source

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

open access: yesCeramics
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   +4 more
doaj   +1 more source

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

open access: yesCerâmica, 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   +3 more
doaj   +1 more source

Improving thermo-mechanical properties of tabular alumina castables via using nano structured colloidal silica [PDF]

open access: yes, 2011
Great attempts were made to reduce the amount of calcium aluminate cement (CAC) content in refractory castables to improve their hot strength. Using more than 2-3 wt% CAC may cause low melting phases formation in the refractory matrix leading to weak ...
Alireza, S., Fatemeh, K.N., Hossein, S.
core  

Monitoring of historical structural materials with computed tomography

open access: yesStructural Concrete, EarlyView.
Abstract Computed tomography (CT) is an excellent tool to solve certain engineering problems connected to material science (such as sulfate swelling, internal degradation due to freezing, and alkali silicate swelling) and to understand specific processes (frost peeling, acid action).
Kristóf Csorba   +5 more
wiley   +1 more source

Closed cycle MHD power generation experiments in the NASA Lewis Facility [PDF]

open access: yes
Many modifications were made in the MHD facility. These include a redesign of the MHD duct interior, addition of mixing bars, increased electrical isolation of all the high temperature components from each other and from ground, and experimentation with ...
Nichols, L. D., Sovie, R. J.
core   +1 more source

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