Results 41 to 50 of about 4,174,026 (90)

Material selection and manufacturing for high‐temperature heat exchangers: Review of state‐of‐the‐art development, opportunities, and challenges

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 6, Issue 5, September 2024.
High temperature heat exchangers may be designed from ceramics to achieve higher performance, and various materials and manufacturing techniques can help achieve highly efficient high temperature systems. Abstract Many energy systems demand heat transfer at high temperatures to keep up with high demand for power, so high‐temperature material that can ...
Corson L. Cramer   +8 more
wiley   +1 more source

Knudsen effusion mass spectrometry: Current and future approaches

open access: yesRapid Communications in Mass Spectrometry, Volume 38, Issue 14, 30 July 2024.
Rationale Knudsen effusion mass spectrometry (KEMS) has been a powerful tool in physical chemistry since 1954. There are many excellent reviews of the basic principles of KEMS in the literature. In this review, we focus on the current status and potential growth areas for this instrumental technique.
Nathan S. Jacobson   +4 more
wiley   +1 more source

Investigation of the properties of ZrC nanopowder synthesized by the carbothermal reduction method using phenolic resin

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 6, Issue 2, March 2024.
Abstract Owing to economic reasons and the morphology of the surface of particles, carbothermal reduction is a suitable method for the synthesis of the desired materials. In this research, ZrC nanopowder was synthesized using phenolic resin as the carbon source and ZrO2 powder as the source of zinc by the carbothermal method. ZrO2 powder was milled for
Farhad Farhang Rad   +2 more
wiley   +1 more source

Modeling of Oxidation Effects on Heat Transfer Behavior of ZrB₂ and ZrB₂-SiC Ceramics at High Temperature

open access: yes, 2012
Hypersonic vehicles need thermal protection materials such as ultrahigh temperature ceramics (UHTCs). ZrB2 and ZrB2-SiC have been proposed as candidates for such applications.
Wei, Jun   +9 more
core   +1 more source

Bilateral project: Transient-Liquid-Phase Bonding of UHTCs Using Refractory-Metal-Based Interlayers for High-Efficiency Energy-Generation Applications

open access: yes, 2011
This project seeks to fill an emerging technological need by developing effective methods of joining high-performance ultrahigh temperature ceramics (UHTCs) using metal-based materials through a fundamental understanding and exploitation of phenomena ...
Noritaka Saito, Laura Esposito
core  

Advances in oxidation and ablation resistance of high and ultra-high temperature ceramics modified or coated carbon/carbon composites

open access: yes, 2017
Carbon/carbon (C/C) composites are considered as one of the most promising materials in structural applications owing to their excellent mechanical properties at high temperature.
Fan, X.   +3 more
core   +2 more sources

Crystal-size dependence of the spark-plasma-sintering kinetics of ZrB2 ultra-high-temperature ceramics

open access: yes, 2012
The crystal-size dependence of the spark-plasma-sintering (SPS) kinetics of ZrB2 ultra-high-temperature ceramics (UHTCs) was investigated. It was found that refining the starting powder enhances the SPS kinetics, reducing the onset temperatures of ...
A.L. Ortiz   +7 more
core   +1 more source

Enhancing Ablation Resistance of TaB2-Based Ultra-High Temperature Ceramics by Mixing Fine TaC Particles and Dispersed Multi-Walled Carbon Nanotubes

open access: yes
Ultra-high temperature ceramics (UHTCs) have been widely applied in many fields. In order to enhance the comprehensive properties of TaB2-based UHTCs, the first collaborative use of fine TaC particles and dispersed multi-walled carbon nanotubes (MWCNTs ...
Xiaoling Xu   +8 more
core   +1 more source

Ultra-High Temperature Ceramics for solar receivers: spectral and high-temperature emissivity characterization

open access: yes, 2012
We report on the preparation, room temperature spectral reflectance and high-temperature thermal emissivity characterization of different Ultra-High Temperature Ceramics.
Fontani Daniela   +6 more
core  

Ultrahigh temperature ceramics for thermal protection systems, propulsion and energy

open access: yes, 2014
Ultra high temperature ceramics (UHTCs) include borides and carbides of early transition metals and are presently considered a class of promising materials for application in the aerospace and energy sectors.
Sciti Diletta
core  

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