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deeppow · 01-14-2003, 09:21 PM

BillA, interesting! I was wondering how you plan on using the information you gather.

I understand that flatness is one effect that influences contact resistance between the cpu and hs but there are several factors that are typically recognized including surface roughness and contact pressure. I'm interested in if and how you see intergrating your measurements into a possible representation of contact behavior that will include the influence of a TIM material.

A good paper that developed a lot of the basic theory for contact resistance between two surfaces is by A. Mujumdar and C. L. Tien, “Fractal Network Model for Contact Conductance,” ASME J. Heat Transfer Vol. 113, pp. 516-525 (1991). There are others also.

Keep up the good work!

01-14-2003, 09:21 PM	#63
deeppow Cooling Neophyte Join Date: Jul 2002 Location: Los Alamos Posts: 30	BillA, interesting! I was wondering how you plan on using the information you gather. I understand that flatness is one effect that influences contact resistance between the cpu and hs but there are several factors that are typically recognized including surface roughness and contact pressure. I'm interested in if and how you see intergrating your measurements into a possible representation of contact behavior that will include the influence of a TIM material. A good paper that developed a lot of the basic theory for contact resistance between two surfaces is by A. Mujumdar and C. L. Tien, “Fractal Network Model for Contact Conductance,” ASME J. Heat Transfer Vol. 113, pp. 516-525 (1991). There are others also. Keep up the good work! __________________ DFI nF4 SLI-DR @266Mhz, AMD64 3700+ SD (2.4Ghz@1.58V), OCZ PC4200 (2512Mb) 2.5-3-3-8@3V ----- SB Audigy2ZS + Klipsch Promedia 4.1, eVGA7800GT, RAID0, 2 80G SATA HDDs ----- Iwaki MD-20RLZT -> Storm -> Chiller -> Resev, PC_Power P&C Tubo-Cool 510Express/SLI in Lian-Li PC-V1200 Last edited by deeppow; 01-14-2003 at 09:34 PM.*