Results 91 to 100 of about 760 (278)

Resistência à corrosão de pós metálicos em concretos refratários contendo elevado teor de carbono Corrosion resistance of metal powders in high-carbon containing castables

Cerâmica, 2006
Os benefícios proporcionados pela adição de carbono em concretos refratários têm ampliado a utilização destes materiais em aplicações siderúrgicas. Contudo, um dos problemas que ainda limita o emprego de concretos refratários contendo elevado teor de ...
V. G. Domiciano, J. R. Garcia, V. C. Pandolfelli   +2 more
doaj   +1 more source

Comportamento de secagem e explosão de concretos refratários com diferentes teores de água Water content and the refractory castables' drying behavior

Cerâmica, 2004
O crescimento do consumo de aço e da sua tecnologia de produção tem demandado proporcional desenvolvimento dos refratários, sendo umas das principais exigências o aumento de sua vida útil e a redução do tempo de parada dos equipamentos revestidos por ...
F. T. Ramal Jr, R. Salomão, V. C. Pandolfelli   +2 more
doaj   +1 more source

The effect of carbon monoxide and steam on stainless steel fiber reinforced refractory castables [PDF]

, 1982
The effects of stainless steel fiber additions on the resistance of castables to CO and steam were investigated. A series of high and intermediate alumina calcium-aluminate bonded castables was prepared containing several commercial stainless steel ...
Martin, Curtis A.
core  

AlloyDesignClaw: Optimizing Castability and Mechanical Properties of Nickel‐Based Superalloys

Materials Genome Engineering Advances, EarlyView.
A stepwise optimization method is proposed for castability and mechanical properties of nickel‐based superalloys, enabling interpretable dimensionality reduction and efficient multi‐objective optimization of the composition space. An alloy design multi‐agent framework was further developed, integrating large language models, CALPHAD calculation ...
Jiaxuan Ma, Songyang Chen, Rui Feng, Xin Hao, Hang Zheng, Chushan Yi, Qingbiao Tan, Guoliang Zhu   +7 more
wiley   +1 more source

Concretos refratários preparados com alumina hidratável: efeito dos dispersantes Refractory castables prepared with hydratable alumina: the dispersant effect

Cerâmica, 2009
Uma alumina de transição capaz de formar fases hidratadas em água tem sido utilizada como ligante hidráulico alternativo para concretos refratários. Entretanto, têm-se observado que a secagem de concretos preparados com este ligante é normalmente mais ...
I. R. Oliveira, V. C. Pandolfelli
doaj   +1 more source

Effect of particle size distribution and calcium aluminate cement on the rheological behaviour of all-alumina refractory castables [PDF]

, 2012
Previous works based on statistical design of experiments (DoE) defined a model all-alumina self-flow refractory castable (SFRC) with optimized particle size distribution for simultaneous high flowability index (FI) and superior post-sintering ...
Oliveira, Luiz A., Pinto, Deesy G., Devezas, Tessaleno, Silva, Abílio P., Segadães, A M   +4 more
core   +1 more source

Epistemic diversity and the politics of knowledge in plant disease management: Insights from the Xylella fastidiosa epidemic in southern Italy

PLANTS, PEOPLE, PLANET, EarlyView.
Xylella fastidiosa is a major plant pathogen affecting crops such as grapes, citrus, almonds, and olives, with potentially severe consequences for agricultural production and rural livelihoods worldwide. This paper examines the conflict around the management of the X. fastidiosa outbreak affecting olive trees in southern Italy.
Fabio Gatti, David Ludwig, Phil Macnaghten   +2 more
wiley   +1 more source

Sol de sílica como agente ligante para concretos refratários Silica sol as a binder agent for refractory castables

Cerâmica, 2006
Grandes esforços têm sido empregados nas tentativas de substituição do cimento de aluminato de cálcio por outros tipos de agentes ligantes em concretos refratários.
M. R. Ismael, F. T. Ramal Jr, V. C. Pandolfelli   +2 more
doaj   +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

Recycling End‐of‐Life Solid Oxide Cell Interconnect Assemblies into Commercial‐Grade AISI 304 Stainless Steels

steel research international, EarlyView.
This study validates a recycling pathway for converting interconnect assemblies from end‐of‐life SOC stacks into commercial‐grade AISI 304 steels. Using scrap‐based steelmaking operations, austenitic cast steels with <4.0% δ‐ferrite are successfully produced.
Jeraldine Lastam, Shine‐Od Mongoljiibuu, Alexander Specht, Daniel Grüner, Dmitry Sergeev, Urs A. Peuker, Michael Müller, Ruth Schwaiger   +7 more
wiley   +1 more source