Brake Pad for Braking Systems, In Particular for Disc Brakes
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United States of America Patent
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N/A
Issued Date -
Aug 18, 2011
app pub date -
Dec 23, 2008
filing date -
Aug 8, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Brake pad for braking systems, in particular for disc brakes, consisting of friction portion (10), tribologically active, and mechanical support portion (20) which is intended to cooperate with the actuating means of a braking system. At least friction portion (10) is made from a ceramic matrix material obtained with a method comprising the following operational steps: --preparing a mixture of at least one siliconic type ceramic precursor, of particles of hard materials suitable as abrasives, of particles of substances suitable as lubricants and particles of metal materials;--hot-pressing the mixture to obtain a preformed body;--submitting the preformed body to a process of pyrolysis in order to obtain ceramisation of the preceramic binder, thus obtaining the ceramic matrix material. The mixture comprises a catalyst suitable for favouring reticulation of said ceramic precursor during the hot-pressing step and the pyrolysis process is carried out a temperatures below 8000.degree. C. The mechanical support portion (20) may be made in ceramic matrix material as one piece with the friction portion or it may consist of a support plate provided with lightening apertures.
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