Research on the Synthesis of Hafnium Diboride via Molten Salts [PDF]
Kuangchan zonghe liyongThis is an article in the field of metallurgical engineering. High purity hafnium diboride (HfB2) powders were synthesized from hafnium oxide (HfO2) and boron carbide (B4C) powders via sodium chloride as the molten salt through boron/carbon thermal ...
Chong YU, Can LIU, Yiran PU, Hao WU
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Stability Evaluation of Candidate Precursors for Chemical Vapor Deposition of Hafnium Diboride (HfB2) [PDF]
ACS Omega, 2021 Alternative candidate precursors to [Hf(BH4)4] for low-temperature chemical vapor deposition of hafnium diboride (HfB2) films were identified using density functional theory simulations of molecules with the composition [Hf(BH4)2L2], where L = -OH, -OMe, -O-t-Bu, -NH2, -N=C=O, -N(Me)2, and -N(CH2)5NH2 (1-piperidin-2-amine referred to as Pip2A ...
Jessica M. Rimsza +3 more
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Experimental and Computational Studies of Compression and Deformation Behavior of Hafnium Diboride to 208 GPa. [PDF]
Materials (Basel), 2022 The compression behavior of the hexagonal AlB2 phase of Hafnium Diboride (HfB2) was studied in a diamond anvil cell to a pressure of 208 GPa by axial X-ray diffraction employing platinum as an internal pressure standard. The deformation behavior of HfB2 was studied by radial X-ray diffraction technique to 50 GPa, which allows for measurement of maximum
Burrage K, Lin CM, Chen CC, Vohra YK.
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Numerical Simulation for Thermal Shock Resistance of Thermal Protection Materials Considering Different Operating Environments [PDF]
The Scientific World Journal, 2013 Based on the sensitivities of material properties to temperature and the complexity of service environment of thermal protection system on the spacecraft, ultrahigh-temperature ceramics (UHTCs), which are used as thermal protection materials, cannot ...
Weiguo Li +3 more
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Materials and Design, 2021 Being one of the hardest materials known in nature, boron carbide (B4C) suffers from severe degradation of mechanical properties when subjected to external pressure or shear stress, which hinders its application in metal forming and machining industries.
Keke Chang, Ming Lou, Leilei Chen
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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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Consolidation and Oxidation of Ultra Fine WC-Co-HfB2 Hard Materials by Spark Plasma Sintering [PDF]
Archives of Metallurgy and Materials, 2021 In this study, a novel composite was fabricated by adding the Hafnium diboride (HfB2) to conventional WC-Co cemented carbides to enhance the high-temperature properties while retaining the intrinsic high hardness.
Hyun-Kuk Park +4 more
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Advances in Materials Science and Engineering, 2011 Taking the hafnium diboride ceramic as an example, the effects of heating rate, cooling rate, thermal shock initial temperature, and external constraint on the thermal shock resistance (TSR) of ultra-high temperature ceramics (UHTCs) were studied through
Weiguo Li +3 more
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Oxidation of HfB2-HfO2-SiC Ceramics Modified with Ti2AlC Under Subsonic Dissociated Airflow
Corrosion and Materials DegradationUltrahigh-temperature ceramic composites based on hafnium diboride have a wide range of applications, including as components for high-speed aircraft and energy generation and storage devices.
Elizaveta P. Simonenko +10 more
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Structure and Properties of High-Entropy Boride Ceramics Synthesized by Mechanical Alloying and Spark Plasma Sintering. [PDF]
Materials (Basel), 2023 Razumov N +3 more
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