Results 11 to 20 of about 951 (206)
Thermoelectric properties of boron carbide/HfB2 composites [PDF]
Materials for Renewable and Sustainable Energy, 2017 Boron carbide/hafnium diboride composites were prepared by spark plasma sintering of a mixture of hafnium diboride and boron carbide powders. Boron carbide was prepared with a 13.3 at.% composition of carbon, known as the ideal carbon content to maximize
Jon-L. Innocent +5 more
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Assessment of advanced joint Hfb2/Nib/Hfb2 by nanoindentation
AIP Conference Proceedings, 2021 An advanced metal-ceramic brazing joint HfB2/NiB/HfB2, especially suitable for aerospace and energy applications, was subjected to instrumented nanoindentation at room temperature.
Fabrizio Valenza +4 more
core +4 more sources
Synthesis of HfB2 Powders by Carbothermal Reduction [PDF]
Journal of Advanced Materials in Engineering, 2020 In this research, solid state carbothermal synthesis of HfB2 Nano powders was investigated. For this purpose, HfO2,H3BO3, carbon active or phenolic resin were used as raw materials for carbothermal reaction.
M. Shirvani, M. Mashhadi, M. Yosofi
doaj +3 more sources
Effects of WC contamination on the densification of spark plasma sintered monolithic HfB2
Open Ceramics, 2023 Monolithic HfB2 samples were produced by SPS at 1800 °C and 2050 °C with two heating rates of 77 °C/min and 107 °C/min, respectively. Despite the increase in the heating rate, relative densities variations against the densification time didn't show any ...
Sadjad Mashayekh, Hamid Reza Baharvandi
doaj +2 more sources
Journal of Alloys and CompoundsBoron-based materials have attracted growing interest as promising candidates for energy storage applications. This study focuses on synthesizing pure HfB2 powders through a straightforward method involving the mechanical activation of a powder mixture ...
Erdem, Emre +5 more
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High-Temperature Oxidation Behavior of TiB2-HfB2-Ni Cermet Material. [PDF]
Materials (Basel), 2022 To analyze the high-temperature oxidation behavior of TiB2-HfB2-Ni cermet material, TiB2-HfB2-Ni cermets were fabricated by hot-pressing sintering technology.
Wang Z, Gao J, Song J.
europepmc +2 more sources
Effects of HfB<sub>2</sub> Content and Microwave Sintering on the Mechanical Properties of Ti<sub>2</sub>AlC Composites. [PDF]
Materials (Basel)This study investigates the influence of the HfB2 content and sintering method on the mechanical behavior of Ti2AlC-based composites. Compositions containing 0–10 wt.% HfB2 are processed via conventional and microwave sintering at 1200 °C for ...
Damaceno MDSD +5 more
europepmc +2 more sources
Novel ZrB2 and HfB2 metaldiboride coatings by LPCVD
Surface and Coatings TechnologyThe synthesis of metal diboride thin films has recently attracted great interest. Boron forms binary compounds with most metals. In general, these materials are high-melting, extremely hard solids with high degrees of thermal stability and chemical ...
Krug, Mario +2 more
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Results in Materials, 2021 HfB2-based composites were produced by adding 5, 10, and 15 vol% MoSi2 and spark plasma sintering at 1900 °C. A monolithic HfB2 along with another HfB2-10 vol% MoSi2 sample was produced by SPS at 1800 °C for comparison. The variations in the matrix grain
Sadjad Mashayekh, Hamid Reza Baharvandi
doaj +1 more source
Radiation Shielding Effectiveness of Hafnium Diboride (HfB2) Reinforced Epoxy Composites for Enhanced Radiation Protection and Safety [PDF]
, 2023 This thesis investigates the radiation shielding effectiveness of hafnium diboride (HfB2) reinforced epoxy composites, with the aim of enhancing radiation protection and safety in various applications.
Erdogan, Furkan
core +1 more source