1. What is the thermal conductivity of a vapor chamber? 2. There are many claims to heat pipes/vapor chambers having conductivities 1000s of times greater than copper. 3. "Using these effects, it is possible to build heat pipes that have a thermal conductivity that is many thousand times higher than a copper piece of the same size." 4. You can even find claims of conductivities of ＞ 10,000 W/mk 5. Are these fact or fiction? 6. It is both true and false! 7. It is possible to build a two phase heat pipe or vapor chamber with very high effective thermal conductivities 8. The key question is; what is the conductivity for my application?
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