Post by williamplayer on Jan 13, 2014 14:27:08 GMT
AFRL Researchers Discover Atomistic Scale Design Methods for Tailoring 3D Thermal Properties of Materials
by Dr. Ajit Roy
Materials and Manufacturing
9/8/2011 - WRIGHT-PATTERSON AIR FORCE BASE, Ohio -- Researchers from the Air Force Research Laboratory stand ready to advise materials processing professionals on heat management, a critical issue that plagues the electronics and aerospace industries. AFRL's groundbreaking research has discovered methods for designing materials at the atomistic scale, allowing the fine tuning of material properties.
Modeling materials to create three-dimensional truss-like nanostructures will allow AFRL researchers to develop directional thermal materials for a variety of electronic and aerospace applications. The new materials will enable systems engineers to solve problems with managing heat and to develop new materials for electrodes and energy storage. These activities represent a new frontier in materials design and are expected to result in a new class of cost-effective and innovative materials.
As aerospace system developers search for ways to create systems that are faster, more efficient and cost effective, they've given significant attention to thermal management challenges that hinder getting rid of or managing waste heat generated by electronics or other aerospace applications. With the development of micro and nanoscale electronic devices, the need to quickly dissipate thermal energy is absolutely critical for device performance. This concern has provided motivation for understanding, improving and guiding the development of materials with tailored, multi-dimensional thermal transport characteristics.
Carbon nanotubes and graphene are candidates for many nano/microscale integrated devices because of their thermal properties. However, neither system is isotropic in its thermal conduction, which limits performance as a three-dimensional thermal transport material. When carbon nanotubes and graphene are introduced as fillers or additives in polymer composites, researchers observe only a minor enhancement in the effective value of thermal conductivity.
Read Full Article: www.wpafb.af.mil/news/story.asp?id=123271132
by Dr. Ajit Roy
Materials and Manufacturing
9/8/2011 - WRIGHT-PATTERSON AIR FORCE BASE, Ohio -- Researchers from the Air Force Research Laboratory stand ready to advise materials processing professionals on heat management, a critical issue that plagues the electronics and aerospace industries. AFRL's groundbreaking research has discovered methods for designing materials at the atomistic scale, allowing the fine tuning of material properties.
Modeling materials to create three-dimensional truss-like nanostructures will allow AFRL researchers to develop directional thermal materials for a variety of electronic and aerospace applications. The new materials will enable systems engineers to solve problems with managing heat and to develop new materials for electrodes and energy storage. These activities represent a new frontier in materials design and are expected to result in a new class of cost-effective and innovative materials.
As aerospace system developers search for ways to create systems that are faster, more efficient and cost effective, they've given significant attention to thermal management challenges that hinder getting rid of or managing waste heat generated by electronics or other aerospace applications. With the development of micro and nanoscale electronic devices, the need to quickly dissipate thermal energy is absolutely critical for device performance. This concern has provided motivation for understanding, improving and guiding the development of materials with tailored, multi-dimensional thermal transport characteristics.
Carbon nanotubes and graphene are candidates for many nano/microscale integrated devices because of their thermal properties. However, neither system is isotropic in its thermal conduction, which limits performance as a three-dimensional thermal transport material. When carbon nanotubes and graphene are introduced as fillers or additives in polymer composites, researchers observe only a minor enhancement in the effective value of thermal conductivity.
Read Full Article: www.wpafb.af.mil/news/story.asp?id=123271132