No. I'm sure some one somewhere has tried it and has been successful, but why try it? There are a few reasons why it probably won't work. First, most corydoras are sub-tropical, thriving in 70-72 degree water. Second, the poly will nip at Corys, and the Corys won't avoid the bichir at all, it's just how Corys are. Third if the bichir is large enough to eat or attempt to eat the Cory, if the Cory is swallowed tail first, it's spines on it's pectoral and dorsal fins could get stuck killing both fish. I wouldn't try it. Get another species of catfish, IE synodontis sp.
Edit: I have tried this combo before with a warmer species Cory, and a small 7-8inch Senegal bichir. While the bichir didn't eat te Cory, I witnessed the Cory blunder into the bichirs face, which is what they do, and the bichir snapped at it.
I wouldn't.think this would be a good combination at all for.the reasons stated above,if they have chance the polys will try and eat them which could result in both dying,not worth the risk.
I have had 4 Corys and 2 Bichirs in the same 55gal for a while.
Don't listen to the Negative Nancies. Just don't be dumb about what you are doing - like... putting baby Corys in with an adult Bichir - and you will be fine.