Heatsink Reviews and Analysis

TOP 5 Heat Sinks     TOP 5 Low Profile Heat Sinks     TOP 5 Liquid Coolers    
 Heatsinks by Brand / Mfgr      Reviews + Articless     Advanced Search    

Cryo Tech and New Cooling Technologies You Have Never Seen
Cryo Tech and New Cooling Technologies You Have Never Seen
Abstract: Frostytech departs from the usual pixel fodder for a brief look at some cooling technologies you have never seen before. We touch on some fun tests from the unpublished Frostytech archives and collect all the thermodynamics research we've reported on into one location.

 Manufacturer  Category  Published  Author 
FrostyTech   Cooling / Heatsinks   May 27, 2010   Max Page  

Home > Reviews > Page: Annex B) Diamond, Nano-structure and Metal Foam Heatsinks
Annex B) Diamond, Nano-structure and Metal Foam Heatsinks

Metafoam Technologies For Waterblocks, Heatpipes and Acoustics:

Metafoam is thermal solution manufacturer based in Canada, the company has produced a collection of products which revolve around its core metal foam technology. These include high surface area open-cell metal foam cold plates, heatpipes and acoustic absorbers.
"Tests results show that with a 6 cm thick metal foam, 60% of noise at 300 Hz is dissipated and the absorption coefficient is at least 80% for frequencies higher than 500 Hz. For a 2,4 cm thick sample, the absorption coefficient is still higher than 80% at more than 1500 Hz. Furthermore, we demonstrated that transmission losses are more important with a 10 mm thick metal foam than with a 50 mm thick conventional polymer foam."
With regard to waterblocks Metafoam offers an alternative to machined surfaces by inserting copper foam in the water block. According to the manufacturer, first prototypes already perform better than high-end commercially available CPU cold plates because the metallic foam's microstructure yields very high surface area which drastically increases contact surface with coolant.
For Heatpipes, Metafoam enhances heat pipe capillary force with its unique metal foam wick. Initial prototypes tested by external laboratories already show a 100% increase in performance compared to conventional screen mesh wicks, according the company.

Foamed Metal Heatsinks and Heat Exchangers:

While this may look like sponge, what these panels and prototype heatsinks are made of is foamed metal, either copper or aluminum. The benefit of foamed metal is incredibly large surface areas, the downside is restricted airflow. High pressure fans are a must.

Still, with heatpipes or watercooling set ups this new avenue of heatsink production could prove quite lucrative. As FrostyTech reported previously, Carbon foam, Fuzzy Carbon-Fiber, and Anisotropic nano Carbon Fiber heatsinks are already being built in laboratories, so there are certainly benefits to this technology that mainstream commercial manufacturers have yet to fully realize. The samples were showcased at CEBIT 2006 by FPE-Fischer, however if your company is developing something similar, be sure to let us at FrostyTech know all about it.

Multiwall Nano Tube Thermal Interface Mats + AS3:

This power point presentation discusses a new way of mounting heatsinks, by using a combination of high thermal conductivity thermal compound and something called a "multiwall nano tube thermal mat". The so-called "thermal mat" is used between the base of the heatsink and CPU to fill in large voids. The University of Maryland research indicates that the best results are had by coating the heatsink base and CPU integrated heat spreader with thermal compound separately. In the author's tests, thermal joint resistance was lowered from 78 W/CM2 to 3 W/CM2.It's an interesting read.

Diamond based thermal interface materials:

HeaThru is a breakthrough diamond composite family, with keynote product DiaCu, a diamond/copper composite with extremely high thermal conductivity for the IC thermal management industry. HeaThru DiaCu is currently used in heat spreaders, heat pipe, and heat sink applications. It is offered in two levels of conductivity, DiaCu-1 and DiaCu-II, at approximately 2x and 3x the conductivity of copper, respectively. HeaThru DiaSil is our diamond-silicon composite, geared toward low electrical conducitivity, precision CTE-matching needs.

Heathru DiaPaste -- Advanced Diamond Solutions, Inc. now carries a breakthrough complementary diamond-based thermal interface product line to maximize the effectiveness of its DiaCu and DiaSil composite lines. Heathru DiaPaste is a high thermal conductivity diamond-filled thermal paste for lowering thermal junction resistance. DiaPaste is a perfect complement to any project requiring a low-cost high thermal conductivity TIM (thermal interface material), where soldering or other fixed-bonding is not feasible.

 Previous Page ° ° Next Page 

Table of Contents:

 1:  Cryo Tech and New Cooling Technologies You Have Never Seen
 2:  Thermoacoustic Cooling
 3:  Phase Change Waterchilling
 4:  Conduction PCB Cooling via Cold Plate Heat Exchangers
 5:  The Stirling Cycle Cryo Cooler
 6:  Annex. A) Graphite, Carbon Foam/Fiber, Polymer Heatsinks
 7:  Annex A) Graphite, Carbon Foam/Fiber, Polymer Heatsinks
 8: — Annex B) Diamond, Nano-structure and Metal Foam Heatsinks
 9:  Annex B) Diamond, Nano-structure and Metal Foam Heatsinks
 10:  Annex C) Heat Exchangers, Microchannel, Capilliary, Spray Watercooling
 11:  Annex C) Heat Exchangers, Microchannel, Capilliary, Spray Watercooling
 12:  Annex C) Heat Exchangers, Microchannel, Capilliary, Spray Watercooling
 13:  Annex D) Computational Fluid Dynamics and Innovative Heatsink Tech

List all FrostyTech heat sinks that Frostytech tested?

Facebook RSS Feed Twitter
° Got Feedback?
° Mk.II Test Platform
° Where To Buy?
° Manufacturer Index
° Industry Dir.
° Cooling Projects
Recently Tested

Arctic Liquid Freezer 120 CPU Watercooler Review

Scythe Mugen 5 Rev B SCMG-5100 Heatsink Review

Gelid Tranquillo 4 Air Cooled Heatsink Review

Coolermaster Ergostand III Laptop Cooling Stand Review

Noctua NH-D9DXi4-3U LGA2011 Xeon Server/Workstation Heatsink Review

Noctua NH-L9x65 Low Profile Heatsink Review
...More Articles >>

Websites you may also like:
Since June 1999

Find a Heatsink
Latest Heatsink Reviews
Top 5 Heatsinks Tested
Top 5 Low Profile Heatsinks
Top 5 Liquid Coolers
Heatsinks by Mfgr / Brand

Social Media
Pinterest Info
Contact Us / Heatsink Submissions
Submit News
Privacy Policy
Suite 66

© Copyright 1999-2024 All Rights Reserved. Privacy policy and Terms of Use
Images © and may not be reproduced without express written permission. Current students and faculty of accredited Universities may use Frostytech images in research papers and thesis, provided each image is attributed.