Results 81 to 90 of about 1,041,897 (290)

Avaliação reológica de concretos refratários para projeção a úmido em aplicações siderúrgicas Rheological evaluation of steel-making wet-shotcrete refractory castables

Cerâmica, 2007
A crescente utilização de processos automatizados durante a etapa de bombeamento e na projeção de concretos refratários é o resultado do entendimento simultâneo das características microestruturais de empacotamento e da natureza reológica destes ...
F. A. O. Valenzuela, T. L. Dong, V. C. Pandolfelli   +2 more
doaj   +1 more source

Influence of the damage level during quenching on thermal shock behavior of low cement castable [PDF]

Science of Sintering, 2010
In the recent decades, the use of unshaped monolithic refractories has been increasing greatly because of their significant advantages over other shaped refractory bricks of the same class.
Martinović S., Majstorović J., Vidojković V., Volkov-Husović T.   +3 more
doaj   +1 more source

Mechanochemical Engineered Sulfur Copolymers Onto Group 13 and Related Fillers Through Lewis Acid‐Base Pairing

Advanced Science, EarlyView.
Green mechanochemical copolymerization was developed for universal interfacial modification of Group 13 and related fillers. By leveraging Lewis acid–base coordination to anchor sulfur‐containing polymers—validated via multiscale characterization and DFT—this versatile method boosts performance across liquid fuels, thermal‐shielding materials, and ...
Chen Wang, Xiaoyang Shao, Zixuan Lei, Ruoqing Zhao, Xiaozhong Bao, Shuiping Zhou, Wen Ao, Zhenhua Wang   +7 more
wiley   +1 more source

Bulk Vitrification Performance Enhancement: Refractory Lining Protection Against Molten Salt Penetration [PDF]

, 2007
Bulk vitrification (BV) is a process that heats a feed material that consists of glass-forming solids and dried low-activity waste (LAW) in a disposable refractory-lined metal box using electrical power supplied through carbon electrodes.
Yokuda, Satoru T., Matyas, Josef, Arrigoni, Benjamin M., Hrma, Pavel R., Rodriguez, Carmen P., Smith, Benjamin T., Bagaasen, Larry M., Fluegel, Alexander, Kim, Dong-Sang, Evans, Michael B., Buchmiller, William C., Gallegos, Autumn B., Schweiger, Michael J.   +12 more
core   +1 more source

Pistols and pride flags: How gender matters for boys in Welsh relationships and sexuality education

British Educational Research Journal, EarlyView.
Abstract School‐based relationships and sexuality education (RSE) is a site of intense discursive circulation around the concept of gender. In the 2020s, international RSE curricula are responding to increasing visibility and cognisance of gendered and sexual diversity among young people and attempting to address gender‐based inequities and violence ...
Max R. Ashton
wiley   +1 more source

An Indicator‐Based Decision Framework for Circular Bioeconomy Transition in the Steel Industry: Integrating Multiphase Learning and Cooperative Game Modelling

Business Strategy and the Environment, EarlyView.
ABSTRACT Despite growing attention to the circular bioeconomy (CBE), the steel industry currently lacks a standardised, sectoral measurement framework to facilitate a low‐carbon transition. In this study, a decision‐support framework for evaluating CBE performance in the steel industry is proposed.
Ali Zamani Babgohari, Mohammadreza Sadeghi‐Moghadam, Hannan Amoozad Mahdiraji   +2 more
wiley   +1 more source

Efeito do tempo de exposição a uma atmosfera coqueificante na microestrutura e nas propriedades de um concreto refratário usado na indústria petroquímica Effect of the exposure time in cokemaking atmosphere on the microstructure and properties of a refractory castable used in the petrochemical industry

Cerâmica, 2012
Os concretos refratários usados em unidades de craqueamento catalítico fluidizado (UFCC) podem sofrer deterioração pela deposição de coque durante o processo de produção de hidrocarbonetos leves, ocasionando a diminuição do tempo de funcionamento do ...
M. D. Cabrelon, A. H. A. Pereira, J. Medeiros, R. D. Toledo-Filho, J. A. Rodrigues   +4 more
doaj   +1 more source

The linear relationship between compressive strength and ultrasonic velocity in castable refractories

, 2004
In this experimental work, castable refractory has been used. In pressing the water percent was in the range of 7.5-9.5 % weight, and the seven cylindrical specimens for each mixture have been pressed under 4000 N/cm(2) into a steel mould. In casting the
Yaman, Cemalettin, Abkan, T, Akdogan, A
core   +1 more source

Clinical Anatomy of the Left and Right Atrial Appendages in Humans: Comparative and Developmental Perspective

Clinical Anatomy, EarlyView.
ABSTRACT Human atrial chambers derive from distinct embryonic anlagens, the original embryonic atria gradually transforming into the so‐called auricles, or atrial appendages. This study quantifies macroscopic variations in pectinate muscle architecture in human atrial appendages and evaluates their visualization using clinical imaging modalities.
Markéta Lexová, Caroline Neradilová, Jan Kovanda, Jan Burkert, Jiří Beneš Jr., Martin Bartos, Theodor Adla, Vojtech Melenovsky, Alena Kvasilova, Ondrej Fabian, Ondrej Naňka, David Sedmera   +11 more
wiley   +1 more source

Low cost refractory castable die development for titanium sheet superplastic forming

, 2013
International audienceFiber Reinforced Refractory Castable (FRRC) is an innovative material solution to manufacture SPF tools for forming titanium alloy sheets. Indeed, FRRC are able to conserve good mechanical properties up to 900°C. Fiber reinforcement
Bernhart, Gérard, Cutard, Thierry, Nazaret, F.   +2 more
core   +3 more sources