Observation of an Indirect Deposition Effect while Cold Spraying Sn-Al Mixed Powders onto Carbon Fiber Reinforced Polymers

2019 ◽  
Vol 29 (1-2) ◽  
pp. 134-146 ◽  
Author(s):  
Andre C. Liberati ◽  
Hanqing Che ◽  
Phuong Vo ◽  
Stephen Yue
Keyword(s):  
Carbon Fiber ◽  
Cold Spraying ◽  
Fiber Reinforced Polymers ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced Polymers ◽  
Reinforced Polymers ◽  
Carbon Fiber Reinforced ◽  
Deposition Effect

Effect of Secondary Component Properties when Cold Spraying Mixed Metal Powders on Carbon Fiber Reinforced Polymers

2021 ◽  
Author(s):  
Andre C. Liberati ◽  
Hanqing Che ◽  
Stephen Yue ◽  
Phuong Vo
Keyword(s):  
Carbon Fiber ◽  
Cold Spraying ◽  
Secondary Component ◽  
Fiber Reinforced Polymers ◽  
Lightning Strike ◽  
Metal Powders ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced Polymers ◽  
Reinforced Polymers ◽  
Carbon Fiber Reinforced

Abstract In previous studies at McGill University; tin was successfully cold sprayed onto carbon fiber reinforced polymers (CFRPs). A “crack-filling” mechanism was described as the deposition mechanism that allowed deposition of tin onto the CFRP. Improving the coating conductivity for lightning strike protection (LSP) purposes was achieved by adding other metal powders (aluminum; copper; zinc) to tin and cold spraying on the CFRP. At the same time; it was noticed that the addition of this secondary component (SC) provided an increase in deposition efficiency (DE); tamping was initially hypothesized to explain this improvement; thus prompting a study solely on the effect of SC hardness; which is reported elsewhere in this conference. However; it is recognised that other powder characteristics may also be influencing the DE. Thus; in this study; SCs with a wider variety of particle sizes; morphologies; densities and hardness values were mixed with tin and sprayed on CFRPs. The effect of SC properties on tin deposition is discussed and an optimal combination of SC properties for cold spraying of tin is suggested.

Research in Recycling Technology of Fiber Reinforced Polymers for Reduction of Environmental Load: Optimum Decomposition Conditions of Carbon Fiber Reinforced Polymers in the Purpose of Fiber Reuse

2011 ◽  
Vol 343-344 ◽  
pp. 142-149 ◽  
Author(s):  
Jian Shi ◽  
Kiyoshi Kemmochi ◽  
Li Min Bao
Keyword(s):  
Tensile Strength ◽  
Carbon Fiber ◽  
Superheated Steam ◽  
Fiber Reinforced Polymers ◽  
Environmental Load ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced Polymers ◽  
Reinforced Polymers ◽  
Carbon Fiber Reinforced ◽  
Recycled Fibers

The objective of the present study is to investigate the effect of pyrolysis time and temperature on the mechanical properties of recycled carbon fiber, based on tensile strength measurements, determining the optimum decomposition conditions for carbon fiber-reinforced polymers (CFRPs) by superheated steam. In this research, CFRPs were efficiently depolymerized and reinforced fibers were separated from resin by superheated steam. Tensile strength of fibrous recyclates was measured and compared to that of virgin fiber. Although tensile strength of recycled fibers were litter lower than that of virgin fiber, under some conditions tensile strength of recycled fibers were close to that of virgin fiber. With pyrolysis, some char residue from the polymer remains on the fibers and degrees of char on the recycled fibers were closely examined by scanning electron microscopy.

Sign in / Sign up

Export Citation Format

Share Document