Results 91 to 100 of about 12,821 (221)

Electrical discharge machining of Al-TiB2 with a low-frequency vibrating tool

Science and Engineering of Composite Materials, 2014
Aluminum-based composite reinforced materials produced in situ with titanium boride (TiB2) particulates have higher potential for advanced structural applications where high specific strength modulus as well as superior temperature resistance is ...
Prabu M., Ramadoss G., Narendersingh P., Christy T.V., Eswaran V. Vedhagiri   +4 more
doaj   +1 more source

Fillers for improved graphite fiber retention by polymer matrix composites [PDF]

The results of a program designed to determine the extent to which elemental boron and boron containing fillers added to the matrix resin of graphite/epoxy composites prevent the release of graphite fibers when the composites are exposed to fire and ...
House, E. E., Sheppard, C. H.
core   +1 more source

Dual-phase ceramics based on multi-cation boride and carbide: Investigations at the nanoscale

Journal of Materiomics
A dual phase boride and carbide ceramic with the nominal composition (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)B2 and (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C was prepared by reactive synthesis and consolidated by spark plasma sintering.
Steven M. Smith, II, Nicola Gilli, William G. Fahrenholtz, Gregory E. Hilmas, Sandra García-González, Emilio Jiménez-Piqué, Stefano Curtarolo, Laura Silvestroni   +7 more
doaj   +1 more source

In-situ Magnesium Diboride Superconducting Thin Films grown by Pulsed Laser Deposition

, 2001
Superconducting thin films of MgB2 were deposited by Pulsed Laser Deposition on magnesium oxide and sapphire substrates. Samples grown at 450C in an argon buffer pressure of about 10-2 mbar by using a magnesium enriched target resulted to be ...
A Chincarini, A Palenzona, Blank D H A, Brinkman A, C Ferdeghini, D Marré, E Bellingeri, Eom C B, Eom C B, G Grassano, G Grasso, Grassano G, Kang W N, M Putti, P Manfrinetti, Shinde S R, V Ferrando, W Ramadan, Zhai H J, Zi-Kui Liu   +19 more
core   +1 more source

Synthesis and photoemission study of as-grown superconducting MgB2 thin films

, 2002
As-grown superconducting thin films of MgB2 were prepared by molecular beam epitaxy (MBE), and studied by X-ray and ultraviolet photoelectron spectroscopy (XPS and UPS). Only films prepared at temperatures between 150 and 320 deg.
An, Bud'ko, H Yamamoto, K Ueda, Kortus, Kotegawa, M Naito, Mavel, McMillan, Medvedeva, Nagamatsu, Naito, Naito, Nishibori, Takahashi, Ueda, Vasquez, Yamamoto   +17 more
core   +1 more source

Growth and Characterization of Ce- Substituted Nd2Fe14B Single Crystals

, 2015
Single crystals of (Nd1-xCex)2Fe14B are grown out of Fe-(Nd,Ce) flux. Chemical and structural analysis of the crystals indicates that (Nd1-xCex)2Fe14B forms a solid solution until at least x = 0.38 with a Vegard-like variation of the lattice constants ...
Cao, H. B., Chakoumakos, B. C., Conner, B. S., Crumlin, E. J., McGuire, M. A., Parker, D. S., Sales, B. C., Saparov, B. I., Shanavas, K. V., Susner, M. A., Veith, G. M.   +10 more
core  

Theoretical study of metal borides stability

, 2006
We have recently identified metal-sandwich (MS) crystal structures and shown with ab initio calculations that the MS lithium monoboride phases are favored over the known stoichiometric ones under hydrostatic pressure [Phys. Rev.
A. M. Fogg, Aleksey N. Kolmogorov, C. H. P. Lupis, P. Villars, R. Naslain, S. Curtarolo, S. Curtarolo, S. K. Kwon, Stefano Curtarolo, T. Vuković   +9 more
core   +1 more source

High-efficiency, low-temperature cesium diodes with lanthanum-hexaboride electrodes [PDF]

Lanthanum hexaboride electrodes in 1700 K cesium diodes may triple power outputs compared with those demonstrated for nuclear thermionic space applications. Still greater relative gains seem possible for emitters below 1700 K.
Morris, J. F.
core   +1 more source

The development of precipitation-hardened chromium-base alloys Final report [PDF]

Precipitation with refractory metal carbides for creep resistant chromium-base ...
Brandes, E. A., Hatt, B. A.
core   +1 more source

Effect of cooling methods on the tribological, oxidation and corrosion properties of CeO2 composite boronizing coatings on 4Cr5MoSiV1 steel

Journal of Materials Research and Technology
The cooling method has a very important effect on the microstructure and properties of the boride layer. In this study, a rare earth-Cr composite boronizing method to prepare boride ceramic coatings on 4Cr5MoSiV1 alloy steel was used.
Quan Zheng, Shunqi Mei, Zhi Xiao, Jinyu Yang, Zhen Chen, Qiao Xu, Alexey Guryev, Burial Lygdenov   +7 more
doaj   +1 more source