Results 91 to 100 of about 16,067 (139)

Synthesis of boron nitride nanotubes and their applications. [PDF]

open access: yesBeilstein J Nanotechnol, 2015
Kalay S   +5 more
europepmc   +1 more source
Some of the next articles are maybe not open access.

Interatomic Potentials for Zirconium Diboride and Hafnium Diboride

Computational Materials Science, 2011
We report on the first interatomic potentials for Zirconium Diboride and Hafnium Diboride. The potentials are of the Tersoff form, and are obtained by fitting to a first-principles database of basic properties of elemental Zr, Hf, B, and the compounds ZrB2 and HfB2. Two variants of the Zr–B potentials have been obtained, and one for Hf–B.
Murray S Daw, John W Lawson
exaly   +2 more sources

Comparison of the Surface Chemical Reactivity of Hafnium Diboride and Hafnium

Inorganica Chimica Acta, 1999
Abstract The surface chemistry of the Hf terminated hafnium diboride surface is compared with the surface chemistry of Hf metal. The HfB2 surface was prepared by growing an epitaxial film of HfB2 on top of a Hf(0001) single crystal substrate. Previous experiments demonstrated that the epitaxial film has the same surface properties as a HfB2(0001 ...
Michael Trenary, Michael Belyansky
exaly   +2 more sources

Densification and Oxidation Behavior of Spark Plasma Sintered Hafnium Diboride-Hafnium Carbide Composite

Ceramics International, 2020
Abstract This study reports on the sintering and oxidation behaviors of Hafnium Diboride (HfB2) and Hafnium Carbide (HfC) based ultra-high temperature ceramic (UHTC) composites. Pure Hafnium Diboride, Hafnium Carbide, and HfB2-50 vol% HfC composite were consolidated using spark plasma sintering (SPS) without the use of sintering aids.
Benjamin Boesl   +2 more
exaly   +2 more sources

Tribological Behavior of Hafnium Diboride Thin Films

Surface and Coatings Technology, 2006
Abstract Transition metal diborides and their coatings offer an excellent combination of high hardness, high chemical stability and high thermal conductivity, thus they are excellent candidates for a wide range of tribological applications. In this work, stoichiometric hafnium diboride films were grown by chemical vapor deposition from a single ...
Pascal Bellon, A A Polycarpou
exaly   +2 more sources

Refractory Diborides of Zirconium and Hafnium

Journal of the American Ceramic Society, 2007
This paper reviews the crystal chemistry, synthesis, densification, microstructure, mechanical properties, and oxidation behavior of zirconium diboride (ZrB 2 ) and hafnium diboride (HfB 2 ) ceramics.
William G. Fahrenholtz   +3 more
openaire   +1 more source

Oxidation of Ultra-High Temperature Transition Metal Diboride Ceramics

open access: yesInternational Materials Reviews, 2012
The oxidation behaviour of transition metal diboride ceramics is reviewed with emphasis on the performance of zirconium diboride and hafnium diboride. First, the oxidation behaviour of nominally pure diborides is discussed, focusing on the transition to ...
Gregory E Hilmas, William G Fahrenholtz
exaly   +2 more sources

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