Results 11 to 20 of about 16,067 (139)

HAFNIUM AND ZIRCONIUM DIBORIDE CONTAINING CERAMICS [PDF]

open access: yes, 2020
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
core   +7 more sources

Preparation and properties of composite material based on hafnium diboride and aluminum [PDF]

open access: yesIOP Conference Series: Materials Science and Engineering, 2021
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
openaire   +4 more sources

Comparison of the Hafnium Diboride(0001) and Hafnium(0001) Surfaces

open access: yesMRS Proceedings, 1996
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
openaire   +2 more sources

Hafnium Diboride as a saturable absorber for Q-switched lasers

open access: yesJournal of Modern Optics, 2019
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
openaire   +3 more sources

Corrosion behaviour of hafnium diboride in aqueous solutions

open access: yesElectrochimica Acta, 2007
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
openaire   +3 more sources

Hafnium oxide coating to improve the oxidation behavior of Zirconium Diboride [PDF]

open access: yesJournal of the European Ceramic Society
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
openaire   +3 more sources

Heteroepitaxy of hafnium diboride on a hafnium(0001) single crystal surface.

open access: yes, 1998
Heteroepitaxy of hafnium diboride on a hafnium(0001) single crystal ...
Michael P. Belyansky (7980569)
core   +6 more sources

PROCESSING AND PROPERTIES OF BORON CARBIDE WITH HAFNIUM DIBORIDE ADDITION [PDF]

open access: yesCeramics - Silikaty, 2016
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
openaire   +2 more sources

Radiation Shielding Effectiveness of Hafnium Diboride (HfB2) Reinforced Epoxy Composites for Enhanced Radiation Protection and Safety [PDF]

open access: yes, 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

Reactions of oxygen and silane with hafnium and zirconium diboride (0001) surfaces.

open access: yes, 2006
Reactions of oxygen and silane with hafnium and zirconium diboride (0001 ...
Rasdip. Singh (7960565)
core   +3 more sources

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