公开(公告)号：EP1409195A1

公开(公告)日：2004-04-21

申请号：EP02753886.7

申请日：2002-06-25

申请人： PLANSEE Aktiengesellschaft

发明人： SCHINTLMEISTER, Arno ,  RESCH, Joachim ,  GEIGER, Ernst

IPC分类号： B23K35/40 ,  C22F1/18 ,  C23C8/10

CPC分类号： C22F1/18 ,  B23K35/402 ,  C23C8/10

摘要： The invention relates to a method for producing corrosion resistant welding electrodes made of tungsten or a tungsten alloy. According to the invention, the pretreated welding electrodes are subjected to heat treatment at temperatures of 300 C and 500 C in an oxidising atmosphere. Oxide layers are formed on the surface of the welding electrode, exhibiting a good electrical conductivity and preventing the formation of undesirable corrosion layers with weak conductivity. The inventive welding electrodes thus produced have excellent flammable properties and problem-free combustion behaviour.

公开(公告)号：EP1259982A1

公开(公告)日：2002-11-27

申请号：EP01271897.9

申请日：2001-12-21

申请人： PLANSEE Aktiengesellschaft

发明人： SCHINTLMEISTER, Arno ,  WILHARTITZ, Peter

IPC分类号： H01L21/768 ,  H01L21/316

CPC分类号： H01L21/76888 ,  H01L21/31683

摘要： The invention relates to a method of reducing the specific resistance of an electrically conducting layer that consists of molybdenum or a molybdenum alloy. The invention is characterized by forming an MoO2 layer on the surface of the electrically conducting layer. The specific layer resistance can thus be reduced by 10 % to 15 %.