Zobrazeno 1 - 10
of 31
pro vyhledávání: '"H.‐P. Martinz"'
Publikováno v:
International Journal of Refractory Metals and Hard Materials. 24:283-291
The SIBOR® (Si–10B–2C) oxidation protective coating was applied onto molybdenum-, molybdenum—3 vol.% ZrO2 (zirconia)- and tungsten-samples by APS (= atmospheric plasma spraying) with a subsequent heat treatment. The coated samples were submitt
Publikováno v:
Materials and Corrosion. 54:860-863
Samples of 5 high Cr-alloys were discontinuously exposed for 10,000 hours under severe metal dusting conditions, i. e. in flowing 49%CO-49%H 2 -2%H 2 O at 650°C. After each of the 11 exposure periods the mass change was determined and any coke remov
Publikováno v:
Surface Science. :284-288
Refractory metals reveal high thermomechanical stability, good conductivity and a high melting point, but poor corrosion resistance under oxidizing atmospheres. Molybdenum foils doped with oxides play an important role in the lighting industry as fee
Publikováno v:
Oxidation of Metals. 51:111-128
The oxidation behavior in air of two ODSsuperalloys, the chromia-forming PM 1000 and thealumina-forming PM 2000, was investigated attemperatures between 900 and 1300°C. For both alloysgrowth rates of the oxide scales obey a subparabolic timedependen
Publikováno v:
Materials and Corrosion. 49:246-251
Carburization of powder metallurgically processed materials for high temperature use is interesting for several reasons: Production of carbide powders e.g. for hard metals, formation of carbide layers on bulk materials to improve corrosion and/or wea
Publikováno v:
Journal de Physique IV Proceedings
Journal de Physique IV Proceedings, EDP Sciences, 1993, 03 (C9), pp.C9-205-C9-213. ⟨10.1051/jp4:1993919⟩
Journal de Physique IV Proceedings, EDP Sciences, 1993, 03 (C9), pp.C9-205-C9-213. ⟨10.1051/jp4:1993919⟩
"Ducropur" and "Ducrolloy" - powder metallurgically produced chromium and chromium base alloys represent a unique combination of different properties : high strength at elevated temperatures and good corrosion resistance to a large variety of chemica
Autor:
M. Sulik, C. Semprimoschnig, K. Huber, M. Witwer, Wolfram Knabl, P. Rödhammer, Helmut Clemens, W. Köck, H.-P. Martinz, R. Storf
Publikováno v:
International Journal of Refractory Metals and Hard Materials. 12:283-293
The European space shuttle HERMES is designed to employ fastening elements made of Nb- or Ta-base alloys in the assembly of hot structures. In order to protect these parts against oxidation during repeated re-entries (projected temperature-time cycle
Publikováno v:
Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General.
Some shortcomings of the commercial alloy MA 956 like insufficient hot gas corrosion resistance at extremely high temperatures or porous welding seams as a result of residual inert gas content, have been overcome by slightly changing the chemical com
Publikováno v:
Thin Solid Films. 70:127-137
The temperature changes of glass substrates were measured during the deposition of silver, gold and copper films. The measurements were carried out continuously and in situ throughout the evaporation process. In addition, the absorptivities of metal