Advanced Composite Materials

d. Advanced Composite Materials Ultimate-performance mechanical materials for precision support and cooling are of general interest for HEP detectors. Mechanical structures are used to hold detector elements with micron precision and stability, with as close to zero mass as possible. Of interest are: novel low-mass materials with high thermal conductivity (>20 Wm/K for 0.1 g/cc) and stiffness; adhesives with very high thermal conductivity (>5 Wm/K) and radiation tolerance (>100 Mrad); low mass composite materials with good electrical properties for shielding, data transmission or power conduction; and radiation tolerant (>100 Mrad) low loss dielectric materials. Improvements to manufacturing processes to take advantage of new or recently developed materials, and performance and stability from room temperature to cryogenic temperatures (70 K and 4 K) are of interest. Also of interest are light-weight, radiation-hard carbon fiber structures (or other metamaterials) with Negative Thermal Conductivity for more efficient cooling of collider tracking detectors and better shielding from thermal noise in Cosmic Microwave Background or Dark Matter experiments. Questions Contact: Helmut Marsiske, helmut.marsiske@science.doe.gov