Results 51 to 60 of about 885 (219)

Designing phase‐adaptive UHTC multilayer composites: Layer width effects on mechanical and kinetic properties

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
Abstract The B1 rocksalt transition metal carbides and nitrides are among the materials with the highest melting temperatures. Additionally, members of this group of materials possess high‐temperature strength with ductility facilitated by diffusional creep.
J. Carter Stotts   +4 more
wiley   +1 more source

ULTRA HIGH TEMPERATURE CERAMICS: TANTALUM CARBIDE (TaC)

open access: yesHavacılık ve Uzay Teknolojileri Dergisi, 2015
Ultra high temperature ceramics (UHTC) are advanced technologic materials class which are used in many application branches especially space and aviation due their specific characteristics such as high hardness, high thermal resistance and corrosion ...
Ekrem Altuncu, Sevim Gökçe Esen
doaj  

Experimental Studies on the Thermal Performance of MWCNT-based Transformer Oil in a Plate-Fin Heat Exchanger

open access: yesAdvances in Mechanical and Materials Engineering
In this paper, thermal performance of transformer oil enhanced with addition of multi-walled carbon nanotubes (MWCNTs) in a plate-fin heat exchanger is experimentally determined.
Devireddy Sandhya   +2 more
doaj   +1 more source

Ablation properties of ZrC-SiC-HfB2 ceramic with different amount of carbon fiber under an oxyacetylene flame

open access: yesMaterials Research Express, 2020
In the present work, a carbon fiber reinforced ZrC-20 vol% SiC-15 vol% HfB _2 composite was produced by pressureless sintering method. Carbon fiber with various weight percentages (0, 10, 20, 30) was added to the milled ZrC-SiC-HfB _2 . The mixed powders
Maryam Shojaie-Bahaabad   +1 more
doaj   +1 more source

Melting point of group IV and V transition metal diborides

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
The environmental conical nozzle levitator system enables cooling trace experiments above 4000 K. These cooling trace experiments were used to determine the melting points through observation of thermal arrest of group IV and V transition metal diborides (TiB2, Tm = 3313 ± 33 K; ZrB2, Tm = 3404 ± 38 K; HfB2, Tm = 3529 ± 33 K; and TaB2, Tm = 3284 ± 10 K;
Fox Thorpe   +4 more
wiley   +1 more source

The beneficial effect of agglomerations of inclusions on the fracture toughness of ceramic nanocomposites

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
Abstract Agglomerations of carbon‐based inclusions and the low adhesion of inclusion‐matrix interfaces are commonly viewed as detrimental to the strength and fracture toughness of ceramic composites. While large, high‐power agglomerations indeed promote microcracking, our computations show that moderate agglomeration levels can enhance energy ...
Elijah N. Borodin   +3 more
wiley   +1 more source

Thermal properties of MB2-WC (M = Ti, Zr, Hf) and tungsten and their stability after deuterium plasma exposure

open access: yesOpen Ceramics
The thermal properties of ultra-high temperature ceramics (UHTCs) in the MB2-WC (M = Ti, Zr, Hf) system and tungsten were studied for potential application as plasma-facing materials in fusion power plants.
Pietro Galizia   +16 more
doaj   +1 more source

A unified thermo‐chemo‐mechanical model for passive, active, and interfacial oxidation of silicon carbide

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
Abstract Silicon carbide (SiC) is a promising material for hypersonic thermal protection systems, but its complex oxidation behavior—marked by transitions between passive, active, and interfacial bubbling regimes—can lead to catastrophic failure. Existing SiC models typically focus exclusively on either passive or active oxidation.
Théo A. Rulko, Raúl A. Radovitzky
wiley   +1 more source

Thermal Spraying of Ultra-High Temperature Ceramics: A Review on Processing Routes and Performance

open access: yes, 2022
Publisher Copyright: © 2022, The Author(s).Ultra-high temperature ceramics (UHTCs) are materials defined as having melting points over 3000 °C and withstand temperatures beyond 2000 °C without losing functionality.
Wellman, R. W.   +4 more
core   +1 more source

A longitudinal study to assess the impact of exercise on clinical, biochemical, and anthropometric parameters among the type 2 diabetes patients of South India

open access: yesAvicenna Journal of Medicine, 2015
Aim: Aim of the study isto assess the scope of physical activity among type 2 diabetes mellitus (T2DM) patients residing in an urban area of SouthIndia.
Pradeep Sukla   +2 more
doaj   +1 more source

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