Results 81 to 90 of about 951 (206)

Effect of HfB2 addition on Ti2AlC compound via powder metallurgy [PDF]

, 2020
Orientadores: Ausdinir Danilo Bortolozo, Giovana da Silva PadilhaDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências AplicadasResumo: Motivados pela constante busca de oportunidades que melhorem o desempenho mecânico de ...
Damaceno, Matheus dos Santos Dias, 1991-
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Thermal properties of MB2-WC (M = Ti, Zr, Hf) and tungsten and their stability after deuterium plasma exposure

Open Ceramics
The thermal properties of ultra-high temperature ceramics (UHTCs) in the MB2-WC (M = Ti, Zr, Hf) system and tungsten were studied for potential application as plasma-facing materials in fusion power plants.
Pietro Galizia, Andrea Uccello, Francesco Ghezzi, Luca Labate, Bruno Tiribilli, Ondrej Hanzel, Martina Salvadori, Fernando Brandi, Simone Failla, Cesare Melandri, Anna Cremona, Matteo Pedroni, Marco De Angeli, Enrico Perelli Cippo, Leonida Antonio Gizzi, Peter Tatarko, Diletta Sciti   +16 more
doaj   +1 more source

High temperature interfacial interactions in Ni-X/HfB2 systems

, 2008
This study presents data on the wettability and the interfacial characteristics of systems based on HfB2 ceramics hot-pressed with different sintering aids (B4C, HfSi2) in contact with liquid Ni-X alloys (X= Ti, B) to promote/control wettability.
Muolo, Maria Luigia, Passerone, Alberto, Valenza, Fabrizio, Bottino, Carlo   +3 more
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Taguchi analysis on the effect of process parameters on densification during spark plasma sintering of HfB2-20SiC

, 2018
Field assisted sintering (FAST) has emerged as a useful technique to densify ultra high temperature ceramics like HfB2-20SiC to a high density at relatively low temperatures and shorter times.
Atre, SV, Enneti, RK, Carney, C, Park, SJ   +3 more
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Accelerated discovery of near-zero ablation ultra-high temperature ceramics via GAN-enhanced directionally constrained active learning

Advanced Powder Materials
In materials science, a significant correlation often exists between material input parameters and their corresponding performance attributes. Nevertheless, the inherent challenges associated with small data obscure these statistical correlations ...
Wenjian Guo, Fayuan Li, Lingyu Wang, Li'an Zhu, Yicong Ye, Zhen Wang, Bin Yang, Shifeng Zhang, Shuxin Bai   +8 more
doaj   +1 more source

Mechanical activation-assisted autoclave processing and sintering of HfB2-HfO2 ceramic powders

, 2016
This study reports on the synthesis and consolidation of HfB2-HfO2 ceramic powders via mechanical activation-assisted autoclave processing followed by pressureless sintering (PS) or spark plasma sintering (SPS).
Duman, Ismail, Ovecoglu, M. Lutfi, Balci, Ozge, Akcamli, Nazli, Agaogullari, Duygu   +4 more
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Epitaxial growth of HfB2 thin films on Si(111) by magnetron sputtering

Hafnium diboride (HfB2) is a promising candidate as a seed layer for GaN growth on Si substrates due to its excellent lattice and thermal coefficients matching with both materials.
Eklund, Per,, le Febvrier, Arnaud, Birch, Jens, Högberg, Hans,, Rosen, Johanna, Birch, Jens,, Eklund, Per, Palisaitis, Justinas, Nayak, Sanjay, Shanmugham, Sathish Kumar,, Högberg, Hans, Primetzhofer, Daniel, Petrov, Ivan, Primetzhofer, Daniel,, Shanmugham, Sathish Kumar, Petrov, Ivan,, Persson, Per O. Å., Frost, Robert J. W.,, Nayak, Sanjay,, Frost, Robert J. W., le Febvrier, Arnaud,, Persson, Per O. Å.,, Palisaitis, Justinas,, Rosen, Johanna,   +23 more
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Development of Cf/C-UHTC composite and study of its resistance to oxidation and ablation in high-speed high-enthalpy air plasma flow

International Journal of Lightweight Materials and Manufacture
This article contains the results of research on the development of a Cf/C-UHTC carbon fabric composite based on a viscose precursor and a combined matrix consisting of partially sintered ceramics in a system consisting of HfC–HfB2–NbC–NbB2–TiC–TiB2–B4C ...
A.N. Astapov, V.A. Pogodin, I.V. Sukmanov, B.E. Zhestkov, M.V. Prokofiev   +4 more
doaj   +1 more source

In-situ synthesis and densification of HfB2 ceramics by the spark plasma sintering technique

, 2017
WOS: 000393937900011Hafnium diboride (HfB2) ceramics were in-situ synthesized and densified by the spark plasma sintering (SPS) method using HfO2 and amorphous boron (B) as starting powders.
Ayas, Erhan, Gürcan, Kara
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Lattice Thermal Conductivity from Atomistic Simulations: ZrB2 and HfB2

, 2012
Ultra high temperature ceramics (UHTC) including ZrB2 and HfB2 have a number of properties that make them attractive for applications in extreme environments. One such property is their high thermal conductivity. Computational modeling of these materials
Bauschlicher, Charles W., Daw, Murray S., Lawson, John W.   +2 more
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