Publications by authors named "Wu-Xi Xie"
High-Energy Composite Fuels with Improved Combustion Efficiency by Using AlH Embedded with Al Particles.
ACS Appl Mater Interfaces
October 2023
Article Synopsis
- Aluminum hydride (AlH) shows promise as a replacement for aluminum in energetic materials used in solid propellants, and research has focused on creating composite particles using AlH with coatings like ammonium perchlorate (AP) and perfluoropolyether (PFPE).
- The study involved formulating and fabricating composite propellants, analyzing their thermal reactivity, energy output, and combustion performance, revealing significant improvements in energy release over traditional propellants.
- Notably, the specially designed propellant with the PFPE coating (AHAPs-F) delivered the highest combustion performance, with total heat releases 1.7 times greater than conventional mixtures, indicating enhanced efficiency and higher temperatures during combustion.
Article Synopsis
- Aluminum hydride (AlH) is being explored as a solid propellant fuel, but it faces stability issues that researchers are working to address.
- A new approach involved applying a hydrophobic surface functionalization using perfluoropolyether (PFPE) and coating with ammonium perchlorate (AP), resulting in composites called AHFPs.
- These AHFPs showed significant improvements, including higher initial decomposition temperatures and enhanced flame intensity, indicating that the PFPE and AP coatings effectively stabilize AlH.
The project involves determination of the activation energies and physical models for thermolysis of BCHMX and its PBXs. The initial decomposition pathways were also proposed on the basis of molecular dynamic simulation. The goal is to find the mutual relationships among the physical models, decomposition pathways, and the impact sensitivities for BCHMX and its PBXs.
View Article and Find Full Text PDF