Results 31 to 40 of about 177,387 (215)

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

No-Cement Corundum Refractory Castables.

, 2018
This thesis deals with the problem of no-cement corundum refractory castables. In the theoretical part, it focuses on NCC refractory and its use, production technology and input raw materials.
Novobilská, Martina
core   +2 more sources

Analysis of the Structure and Durability of Refractory Castables Impregnated with Sodium Silicate Glass

Ceramics, 2023
This study examines the impact of the impregnation of fireclay-based conventional (CC) and medium-cement castables (MCCs) with liquid sodium silicate glass under vacuum conditions.
Jurgita Malaiškienė, Valentin Antonovič, Renata Boris, Andrius Kudžma, Rimvydas Stonys   +4 more
doaj   +1 more source

High‐Temperature Phase Transformation in a V‐9Si‐6.5B Alloy: The Kinetic and Crystallographic Pathway From V5SiB2 to V8SiB4

Advanced Engineering Materials, EarlyView.
In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti, Andreas Stark, Roja Rani Korrayi, Florian Pyczak, Georg Hasemann   +4 more
wiley   +1 more source

Mechanochemically synthesized high alumina cement and their implementation as low cement castables with some micro-fine additives

Journal of Asian Ceramic Societies, 2015
High-energy ball milling viz. mechanochemical process is being utilized to mechanically activate ceramic powders for low temperature solid state reactions. The process can help to select low-cost commercially available oxides and can produce powders with
Vijay Kumar, Vinay Kumar Singh, Abhinav Srivastava, P. Hemanth Kumar   +3 more
doaj   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Podem os dispersantes afetar as propriedades dos concretos refratários após a queima? Could the dispersants affect the properties of refractory castables after firing?

Cerâmica, 2009
A aplicação de concretos refratários é um processo em constante evolução e apresenta uma forte dependência dos avanços dos conhecimentos sobre os ligantes hidráulicos.
I. R. Oliveira, V. C. Pandolfelli
doaj   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Aspectos da hidratação de óxido de magnésio em formulações de concretos refratários Aspects of magnesium oxide hydration in refractory castables compositions

Cerâmica, 2006
Óxido de magnésio (MgO) ou magnésia é uma das matérias primas mais importantes para a indústria de refratários. Graças à sua elevada refratariedade (ponto de fusão da ordem de 2800 ºC) e resistência à corrosão me meios básicos, associadas a custos ...
R. Salomão, L. R. M. Bittencourt, V. C. Pandolfelli   +2 more
doaj   +1 more source

Improvement in Slag Resistance of No-Cement Refractory Castables by Matrix Design

Ceramics, 2020
The corrosion resistance of spinel containing cement bonded castables has been extensively investigated in the past. However, corrosion of no-cement refractory castables (NCC) has not been widely studied since the use of NCC has been relatively limited ...
Hong Peng, Jun Liu, Qinghu Wang, Yawei Li   +3 more
doaj   +1 more source