Results 131 to 140 of about 394 (178)

Fabrication of new zirconium boride ceramics

Journal of Materials Science Letters, 1989
Etude de la preparation de ceramiques ZrB 2 par frittage, a l'etat solide, de melanges de poudres contenant soit B 6 Si et ZrO 2 soit B 6 Si et ZrSiO ...
I M Low, R Mcpherson, Low I M
exaly   +3 more sources

Study on Zirconium Boride Machined by Micro-EDM

WCMNM 2018 World Congress on Micro and Nano Manufacturing, 2018
The present research is focused on the application of micro-Electrical Discharge Machining technology on advanced ceramic materials, called Ultra High-Temperature Ceramic (UHTC). Nowadays, ceramics are very attractive materials because of their excellent mechanical and thermal properties, but they are extremely difficult to be machined using ...
Quarto, Mariangela, Bissacco, Giuliano, D'Urso, Gianluca, Giardini, Claudio   +3 more
core   +3 more sources

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Features of Zirconium Boride–Chromium Interaction

Powder Metallurgy and Metal Ceramics, 2019
The interaction of zirconium boride with chromium in the temperature range 1300–1900°C in vacuum is studied. In case of solid-phase interaction, reaction diffusion takes place at the interface to form Cr2B and CrB at the metal boundary. The process is controlled by the diffusion of boron atoms from the zirconium diboride lattice into the metal.
O N Grigoriev, D V Vedel, V A Kotenko
exaly   +2 more sources

ChemInform Abstract: Zirconium Borohydride as a Zirconium Boride Precursor.

ChemInform, 1988
AbstractThe applicability of Zr(BH4)4 (I) as starting material in ZrB2 synthesis is demonstrated by a variety of methods, including conventional CVD, laser CVD with both continuous wave and pulsed lasers.
G. W. RICE, R. L. WOODIN
openaire   +2 more sources

Corrosion of zirconium boride and zirconium boron nitride coated steels

Surface and Coatings Technology, 1995
Abstract The corrosion behaviour of sputtered zirconium boride and zirconium boron nitride coatings on carbon steel substrates was investigated. Coatings were produced employing non-reactive as well as reactive d.c. magnetron sputtering deposition using zirconium diboride targets.
M. Ürgen, A.F. Çakir, O.L. Eryilmaz, C. Mitterer   +3 more
openaire   +2 more sources

The oxidation resistance of alloys of zirconium boride with molybdenum disilicide

Soviet Powder Metallurgy and Metal Ceramics (English Translation of Poroshkovaya Metallurgiya), 1965
A study was made of the oxidation of pure zirconium boride and alloys of zirconium boride with molybdenum disilicide-(ZrB1.9)23MoSi1.1 and (ZrB1.7)13MoSi1.2-obtained by sintering a mixture of zirconium boride with 5 and 10% molybdenum disilicide. The rate of oxidation was determined from the time dependences of specimen weight and oxide film thickness.
M. A. Kuzenkova, P. S. Kislyi
exaly   +2 more sources

ChemInform Abstract: Preparation of Zirconium Boride Powder.

ChemInform, 1996
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
H. ZHAO, Y. HE, Z. JIN
openaire   +2 more sources

Kinetics of oxidation of the zirconium boride-silicon carbide composition in the air medium

Glass Physics and Chemistry, 2015
Heat-resistant ceramic materials have been prepared based on the zirconium boride-silicon carbide composition during oxidation in the air atmosphere. The effect of the evaporation of boric oxide on the oxidation kinetics has been revealed experimentally. The electrical resistivity and dilatometric properties of the composites were determined.
D V Kolovertnov, I B Ban'Kovskaya, Kolovertnov D V   +2 more
exaly   +2 more sources

Microstructure evolution of zirconium boride whiskers prepared by electrospinning and their toughening effect

Journal of the American Ceramic Society
Abstract Zirconium boride (ZrB 2 ) whiskers hold significant potential for toughening ultra‐high temperature ceramics (UHTCs). Yet, their fabrication remains challenging due to limited knowledge of the microstructure evolution. Herein, high‐purity ZrB 2
Xinyang Li, Xiaoye Hu, Zhulin Huang
exaly   +2 more sources

Zirconium boride tips for immersion thermocouples

Refractories, 1961
A D Panasyuk, Panasyuk A D
exaly   +2 more sources