Friction articles and processes for manufacturing and mounting same

Claim 1

IN A PROCESS FOR BONDING A FIRST POWDERED MATERIAL COMPRISING A MIXTURE OF NONMETALLIC AND METALLIC POWDERS TO A BACKING MEMBER, TO WHICH IT WILL NOT STRONGLY SINTER BOND DIRECTLY: PROVIDING A PLURALITY OF CLOSELY SPACED FORAMINA IN A FACE SAID BACKING MEMBER, PROVIDING A LAYER OF SAID FIRST POWDERED MATERIAL IN ITS NONSINTERED CONDITION, PLACING A LOOSE LAYER OF A SUBSTANTIALLY COMPLETELY METALLIC AND STRONGLY SINTERABLE POWDERED MATERIAL AGAINST A FACE OF SAID FIRST LAYER OF POWDERED MATERIAL, SAID SECOND LAYER BEING SINTERABLE WITH THE METALLIC POWDER OF SAID FIRST LAYER AND HAVING A COEFFICIENT OF EXPANSION GENERALLY EQUAL TO THAT OF SAID FIRST LAYER, COMPACTING SAID LAYER TOGETHER, AND SINTERING SAID LAYERS TOGETHER WITHOUT THE APPLICATION OF EXTERNALLY APPLIED PRESSURE, SAID SECOND LAYER BEING FORCED FIRMLY INTO THE OPENING OF SAID BACKING MEMBER TO LOCK SAID STRUCTURE TOGETHER.