Ti effects on ceramic joining (esp. alumina) ?
Ti effects on ceramic joining (esp. alumina) ?
(OP)
HELP !
I am desparately trying to understand the potential effects of Ti on the joining/brazing/sintering of alumina refractories. I have found out that Ti is often used as a constituent of active fillers for joining of ceramics to other ceramics, but dont know why or what effect the Ti would have on alumina ... any ideas/references ? Getting desparate, would be grateful for any help whatsoever.
Thanks in advance
I am desparately trying to understand the potential effects of Ti on the joining/brazing/sintering of alumina refractories. I have found out that Ti is often used as a constituent of active fillers for joining of ceramics to other ceramics, but dont know why or what effect the Ti would have on alumina ... any ideas/references ? Getting desparate, would be grateful for any help whatsoever.
Thanks in advance





RE: Ti effects on ceramic joining (esp. alumina) ?
Tom
RE: Ti effects on ceramic joining (esp. alumina) ?
RE: Ti effects on ceramic joining (esp. alumina) ?
RE: Ti effects on ceramic joining (esp. alumina) ?
then search the patent database for Titanium
brazing.
We brazed titanium to alumina and beryllium.
The main reason was for thermal expansion and
compatiblity with ohter materials.
All are brazing was vacuum brazing with
35/65 Gold Copper or Cusil depending on
mating materials.
The Patent Web Site should help out also
Andy Kaczmarek
RE: Ti effects on ceramic joining (esp. alumina) ?
Some things wet better than others. Steel wets well once you remove the scale. You can get some materials to wet well if you remove the oxide layer. The trick is to keep the oxide layer from reforming. Some times you can braze successfully to just part of the material. You can braze tungsten carbide in a cobalt matrix by just brazing to the matrix.
See U.S. patent 6,322,871 and / or www.carbideprocessors.com
Tom Walz