HAFNIUM AND ZIRCONIUM DIBORIDE CONTAINING CERAMICS [PDF]
An ultra-high temperature ceramic material comprises hafnium diboride and zirconium diboride. The article preferably comprises a substrate material into which the hafnium diboride and zirconium diboride are ...
BINNER JON, HILLMAN WILLIAM
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Preparation and properties of composite material based on hafnium diboride and aluminum [PDF]
Abstract Hafnium diboride (HfB2) in aluminum matrix (Al) material was prepared by diffusion sintering of a mixture of hafnium diboride and aluminum micropowders. The effect of the hafnium diboride content (HfB2) in the aluminum matrix (Al) on sintering characteristics and properties of the samples is presented.
Belyakovich, S. A. +3 more
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Comparison of the Hafnium Diboride(0001) and Hafnium(0001) Surfaces
AbstractThe surface properties of the (0001) surfaces of single crystals of hafnium and hafnium diboride are compared with a boride film deposited on the Hf(0001) surface. The surfaces were characterized with X-ray photoelectron spectroscopy (XPS) and low energy electron diffraction (LEED).
M. Belyansky +3 more
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Hafnium Diboride as a saturable absorber for Q-switched lasers
Hafnium diboride (HfB2) is used in hypervelocity re-entry vehicles (such as intercontinental ballistic missile (ICBM) or ICBM heat shields), nuclear reactors and aerodynamic leading edges because o...
Haque, A, Morshed, M, Hattori, HT
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Corrosion behaviour of hafnium diboride in aqueous solutions
A dense HfB(2) ceramic material was prepared by hot pressing in the presence of 2.5 wt.% Si(3)N(4), as a sintering aid. The microstructure consisted of a fine HfB2 matrix with refractory secondary phases (BN, HfO(2), Hf(C,N,O)) and Si, mainly located at the triple points.
MONTICELLI, Cecilia +3 more
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Hafnium oxide coating to improve the oxidation behavior of Zirconium Diboride [PDF]
Hafnium dioxide (HfO2) coatings were successfully deposited on zirconium diboride (ZrB2) using reactive magnetron sputtering. After the oxidation at 1500°C or 1600°C, the mutual dissolution of HfO2 and thermally grown ZrO2 was observed which has resulted in the formation of a mixed oxide zone.
Förster, Jan Erik +3 more
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Heteroepitaxy of hafnium diboride on a hafnium(0001) single crystal surface.
Heteroepitaxy of hafnium diboride on a hafnium(0001) single crystal ...
Michael P. Belyansky (7980569)
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PROCESSING AND PROPERTIES OF BORON CARBIDE WITH HAFNIUM DIBORIDE ADDITION [PDF]
This article presents the results of investigations on densification, mechanical and electrical properties of boron carbide (B₄C) with the addition of HfB₂. High dense B₄C-HfB₂ (2.5-30 wt.%) composites were prepared by hot pressing at a temperature of 2173 K with 40 MPa mechanical pressure.
K. Sairam +7 more
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Radiation Shielding Effectiveness of Hafnium Diboride (HfB2) Reinforced Epoxy Composites for Enhanced Radiation Protection and Safety [PDF]
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
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Reactions of oxygen and silane with hafnium and zirconium diboride (0001) surfaces.
Reactions of oxygen and silane with hafnium and zirconium diboride (0001 ...
Rasdip. Singh (7960565)
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