Results 91 to 100 of about 951 (206)

Effects of HfB2 and HfN Additions on the Microstructures and Mechanical Properties of TiB2-Based Ceramic Tool Materials

open access: yes, 2017
The effects of HfB2 and HfN additions on the microstructures and mechanical properties of TiB2-based ceramic tool materials were investigated. The results showed that the HfB2 additive not only can inhibit the TiB2 grain growth but can also change the ...
Jing An   +7 more
core   +1 more source

Oxidation of Ceramic Materials Based on HfB<sub>2</sub>-SiC under the Influence of Supersonic CO<sub>2</sub> Jets and Additional Laser Heating. [PDF]

open access: yesInt J Mol Sci, 2023
Simonenko EP   +13 more
europepmc   +1 more source

Investigation of the Effect of Supersonic Flow of Dissociated Nitrogen on ZrB2-HfB2-SiC Ceramics Doped with 10 vol.% Carbon Nanotubes. [PDF]

open access: yesMaterials (Basel), 2022
Simonenko EP   +7 more
europepmc   +1 more source

A new SiC/HfB2 based micro hotplate for metal oxide gassensors [PDF]

open access: yes, 2004
Solzbacher, Florian A new SiC/HfB2 based modular concept of micro hotplates for metal oxide gassensors Im Rahmen dieser Arbeit wurde ein neuer SiC/HfB2-basierter Mikroheizer mit niedrigster Leistungsaufnahme für die Anwendung in Metalloxid ...
Solzbacher, Florian
core  

High heat flux laser testing of HfB2 cylinders

open access: yes, 2016
Hafnium diboride (HfB2) is one of a family of ultra-high temperature ceramics (UHTCs) which are being considered for application in environments with a substantial heat flux such as hypersonic flight.
Peter Brown   +17 more
core   +1 more source

Fabrication and Properties of Reactively Hot Pressed HfB2-HfC Ultra-High Temperature Ceramics

open access: yes, 2010
HfB2-HfC composites were prepared by reactive hot pressing using Hf and B4C at temperatures of 1800 and 1900oC for 60 min under 32 MPa in an Ar atmosphere.
성영훈   +4 more
core  

Spark Plasma Heat Treated ZrB2-SiC and HfB2-SiC Composites for Ultra High Temperature Aerospace Applications

open access: yes, 2014
UHTC ceramics are useful for propulsion and thermal protection systems. ZrB2 and HfB2 with SiC were prepared using spark plasma heat treatment. We used PALS to study the nanoporosity, SEM for particle size distribution, and microhardness tester for ...
Webb, Marquavious T.
core  

Synthesis, sintering, and oxidative behavior of HfB2-HfSi 2 ceramics

open access: yes, 2014
The self-propagating high-temperature synthesis (SHS) of (1 – x)HfB2–xHfSi2 (x from 0 to 1) ceramics is successfully performed in this work starting from elemental reactants.
ORRU', ROBERTO   +3 more
core   +1 more source

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