Witryna21 sie 2008 · A process for manufacturing a carbon foam with enhanced directional thermal conductivity, comprising:(a) providing a mesophase pitch having mesophase portions, each mesophase portion comprising layer planes of aligned molecules;(b) aligning the layer planes of the mesophase portions of the mesophase pitch with … Witryna3 wrz 2003 · Since the absorption coefficient of graphitic materials is higher than that of different forms of diamond in a broad spectral range, the decrease of optical transmittance serves as an experimental...
Carbon layer structures and thermal conductivity of graphitized …
Witryna1 sty 1981 · The graphite layers were found to align perpendicularly to the compressive stress, contrary to our previous report. The previously observed orientation was … Witryna1 wrz 2024 · Graphitized films prepared from polymers such as polyimide (PI) and polyacrylonitrile as precursors yield graphite by heat treatment in the range of 2900–3300 °C and can be manufactured at an industrial scale [ 18 ]. Polyimide based … dell battery replacement singapore
Effect of Diamond Grain Orientation on the Local ... - Springer
Witryna24 mar 2015 · The revealed rise in the graphitization wave velocity for the [110] beam orientation can be explained by the local electric field enhancement near the crack tip, which facilitates diamond ionization and plasma-assisted energy absorption. Witryna1 sty 1992 · High-quality and highly oriented graphite was produced in the form of a thick block having physical properties close to those of single-crystal graphite. It was prepared from polyimide films of 25 μm thick with high molecular orientation. Witryna30 lis 2024 · Here, we report an efficient and controllable strategy to prepare highly oriented and ordered graphitized cellulose nanocrystal (GCNC) with well-defined sizes and shapes at low temperature and atmospheric pressure by hydrolyzing the disordered regions of microcrystalline cellulose with sulfuric acid and further dehydrating and … dell battery replacement inspiron 13 7000