Gerd Renner

Powder-metallurgically produced composite material and method for its production

Powder metallurgical composite material, especially for high voltage vacuum switch contacts, comprises refractory solid solution or intermetallic phase grains embedded in a metal matrix

Kontaktstück aus Wolfram mit einer korrosionshemmenden Schicht aus Unedelmetall

Copper-chromium contact material with a surface transformed into fine grains for electrical circuit breakers and process for its manufacture

Contact piece made from tungsten with a corrosion-inhibiting layer of base metal

Kontaktstück aus Wolfram mit einer korrosionshemmenden Schicht aus Unedelmetall Contact piece of tungsten with a corrosion-inhibiting layer of base metal

Composite material prepared by powder metallurgy

Composite article prepared by powder metallurgy and process for its manufacture

Pulvermetallurgisch hergestellter Verbundwerkstoff und Verfahren zu dessen Herstellung

Powder metallurgy composite material and process for its preparation