| Active-braze™ No.15 Brazing Paste is a specialized brazing paste for the active brazing of non-metallic materials. Employing an active brazing technique removes the need for prior metallization of the non-metallic material such as the ‘moly-manganese’ metallization commonly applied to alumina ceramics. Active-braze™ No.15 brazing paste is formulated around a silver-copper-indium filler metal with an addition of titanium as the active element. The paste binder system used in the product is a water soluble polymer type. Active type brazing filler metals do not flow by capillary attraction or spread significantly like most brazing filler metals and need to be placed within the joint. Active-braze™ No.15 has a brazing temperature range of 720 to 860°C. Active-braze™No.15 is used for the brazing of ceramics like alumina and zirconia, diamond, natural, single crystal, or CVD (chemical vapor deposition) types, as well as graphite, sapphire, silicon carbide, PCD (polycrystalline diamond) and PCBN (polycrystalline cubic boron nitride) to themselves or to metallic substrates like low expansion nickel alloys, copper and tungsten carbide. Information provided by Johnson Matthey Metal Joining |
