Pro/Forums - View Single Post - Metallurgist? Copper annealing discussion.

koslov · 08-03-2003, 07:51 PM

Here is a data sheet ( http://216.239.57.104/search?q=cache...C10200.asp</a> ) for the alloy of my block ("C10200 has conductivity 101% IACS, the highest among coppers."). This suggests 700-1400F for annealing. Since my block has skived fins, the conductivity gains should be good. Also, since I am working with a 300+ Watt heat flux (TEC), even a .01 C/W improvement will result in a CPU several degrees cooler.

My proposed process:
1. Lap on .000150" flat calibrated granite (400, 600, 1000 grit)
2. Anneal to 1400F in argon
3. Quench in water (my research indicates method of quenching makes no difference with Cu, water is fastest)
4. Lap on granite (1000, 1500, 2000 grit)

Any suggestions?

08-03-2003, 07:51 PM	#90
koslov Cooling Savant Join Date: Jul 2002 Location: Posts: 264	Here is a data sheet ( http://216.239.57.104/search?q=cache...C10200.asp</a> ) for the alloy of my block ("C10200 has conductivity 101% IACS, the highest among coppers."). This suggests 700-1400F for annealing. Since my block has skived fins, the conductivity gains should be good. Also, since I am working with a 300+ Watt heat flux (TEC), even a .01 C/W improvement will result in a CPU several degrees cooler. My proposed process: 1. Lap on .000150" flat calibrated granite (400, 600, 1000 grit) 2. Anneal to 1400F in argon 3. Quench in water (my research indicates method of quenching makes no difference with Cu, water is fastest) 4. Lap on granite (1000, 1500, 2000 grit) Any suggestions?