A cell phone battery spontaneously caught fire last month at a Defcon software hacker's session - while in the back pocket of the owner's pants. The phone caught on fire, burned through the anonymous man's pocket, and fell to the floor where it left burn marks. The man was sitting when he smelled something burning and felt some heat underneath him on his seat. He stood up to … [Read more...]
Carbon Fiber Sheet Prototype Challenges Thermal Grease
Sony Chemical & Information Device Corp. displayed a prototype of a sheet whose thermal conductivity it claims is equivalent to that of thermal grease and has a longer life span. The sheet, known as EX20000C, uses a combination of silicon and carbon fibers to produce a thermal conductive layer that is between 0.3 and 2mm thick and has a thermal resistance rating of … [Read more...]
New Thermally Conductive Silicone Thermal Interface Material
NuSil Technology LLC presents EPM1-2493, a low-viscosity, low modulus silicone elastomer with a nominal thermal conductivity of 1 W/mk. Offering bond lines as thin as 5 microns, EPM1-2493 can be used to adhere materials with differing coefficients of thermal expansion (CTE) for significant stress reduction during thermal cycling. EPM1-2493 does not have the typical paste-like … [Read more...]
New Family of Highly Thermally-Conductive Bonding Materials
Applied Nanotech Holdings, Inc. has unveiled a new family of highly thermally-conductive bonding and printed materials called THERCOBOND™ for power electronics and photonics applications. THERCOBOND™ materials are specially designed for power electronic device packaging and dielectric coating, with an optimal combination of thermal conductivity, thermal diffusivity, thermal … [Read more...]
Researchers Control Heat Flow with Atoms
Through a combination of atomic-scale materials design and ultrafast measurements, researchers at the University of Illinois have revealed new insights about how heat flows across an interface between two materials. The researchers demonstrated that a single layer of atoms can disrupt or enhance heat flow across an interface. The researchers first deposited a single layer of … [Read more...]
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