CPU Cooling: Diamond Dust is for Lapping Surfaces (Score 1)

The diamond dust is used to "lap" the contact surfaces of the CPU and cooler/heatsing to achieve better contact. The best heat transfer would perfect metal-to-metal contact. A good machinist ar lens maker could achieve this by lapping the surfaces on an optical flat...90% contact would be good enough. The lens maker would use diamond dust...the machinist would use less expensive lapping conpounds. I use extra fine water sandpaper on a formica table top.