Results 41 to 50 of about 3,503 (219)
Multistage depressed collector for dual mode operation [PDF]
, 1981 A depressed collector which captures the spent electrons of a microwave transmitting tube at high efficiency in both high and low power modes of operation is described. The collector comprises entrance and end electrodes, the end electrode having a spike
Kosmahl, H. C.
core +1 more source
Melting point of group IV and V transition metal diborides
Journal of the American Ceramic Society, Volume 109, Issue 1, January 2026.The environmental conical nozzle levitator system enables cooling trace experiments above 4000 K. These cooling trace experiments were used to determine the melting points through observation of thermal arrest of group IV and V transition metal diborides (TiB2, Tm = 3313 ± 33 K; ZrB2, Tm = 3404 ± 38 K; HfB2, Tm = 3529 ± 33 K; and TaB2, Tm = 3284 ± 10 K;
Fox Thorpe +4 more
wiley +1 more source
Mechanical Activation of Ti-2B System: XRD Investigation of Structural Features
Eurasian Chemico-Technological Journal, 2016 XRD investigation of Ti-2B system was carried out with the purpose of determining of structural changes in this system during mechanical activation. The size of coherentscattering region (CSR size) and kind II stresses (microstresses) were calculated by ...
N. A. Kocgetov, I. D. Kovalev
doaj +1 more source
Перспективы применения защитных покрытий катода алюминиевого электролизера [PDF]
, 2002 Сплавы алюминия широко используются во многих отраслях машиностроения вследствие их малой плотности и относительно высокой прочности. Непрерывно растет мировое производство первичного алюминия, достигая в настоящее время объема порядка 37,3 млн. т/год [1]
Галевский, Г. В. +2 more
core +1 more source
High Temperature Materials and ProcessesThe aerospace industry widely uses titanium diboride, a tough material that is challenging to machine using conventional methods. We, therefore, process titanium diboride (TiB₂) to determine the best process parameters for electrical discharge machining ...
Shanmugam Karthik +2 more
doaj +1 more source
Ternary boride product and process [PDF]
, 1976 A hard, tough, strong ceramic body is formed by hot pressing a mixture of a powdered metal and a powdered metal diboride. The metal employed is zirconium, titanium or hafnium and the diboride is the diboride of a different member of the same group of ...
Clougherty, Edward V.
core +1 more source
Advanced Energy Materials, Volume 15, Issue 45, December 2, 2025.This review highlights recent advancements in catalyst supports for the oxygen evolution reaction (OER) in proton exchange membrane water electrolysis (PEMWE), emphasizing their critical role in constructing efficient catalyst layers. It comprehensively examines support materials based on four key criteria—surface area, corrosion resistance, electrical
Yoonsu Park +4 more
wiley +1 more source
Study of Wear Behavior on AA6061 Reinforced with Hybrid Ceramic Composites through Optimization
Advances in Materials Science and Engineering, 2023 This present work uses the three main components for alloying, silver nitrate, aluminium nitride, and titanium diboride. Stir casting was used to make AA 6061 composites with varying weights of 0, 3, 6, 9, and 12%.
Omar Shabbir +5 more
doaj +1 more source
High temperature refractory member with radiation emissive overcoat [PDF]
, 1990 A radiation type heat dissipator for use in a plasma engine is formed of a refractory metal layer upon which there is deposited a radiation emissive coating made of a high emissivity material such as zirconium diboride. The radiation emissive coating has
Deininger, William D., King, David Q.
core +1 more source
Mechanosynthesis of nanocrystalline ZrB2-based powders by mechanically induced self-sustaining reaction method [PDF]
, 2013 Preparation of nanocrystalline ZrB2-based powder by aluminothermic and magnesiothermic reductions in M/ZrO2/B 2O3 (M = Al or Mg) systems was investigated.
Bafghi, M. Sh +3 more
core +1 more source