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Synthesis of Al-Al2O3-CNF Composite by Cold Spray Method: Powder Preparation and Synthesized Objects Characterization
Anton Yu Nalivaiko1,2, Vitaliy V Doroshenko1, Nguyen Kuang1
1MISIS Catalysis Lab, National University of Science and Technology MISIS, 119991 Moscow, Russia.
This study explores aluminum-alumina-carbon nanofiber composites prepared by ball milling and cold spray. Carbon nanofibers influence particle distribution and enhance material hardness.
Area of Science:
- Materials Science
- Nanotechnology
- Composite Materials
Background:
- Advanced composite materials are crucial for demanding applications.
- Understanding the role of nanoscale reinforcements is key to optimizing material properties.
- Aluminum-alumina systems offer a base for developing high-performance composites.
Purpose of the Study:
- To investigate the preparation and characterization of aluminum-alumina-carbon nanofiber (CNF) composites.
- To analyze the effect of CNF on particle distribution and hardness in cold-sprayed coatings.
- To elucidate the interaction mechanisms within the composite particles.
Main Methods:
- Composite preparation via ball milling.
- Synthesis of solid objects (coatings) using the cold spray method.
- Microstructural analysis using optical and electron microscopy.
- Hardness testing of synthesized composite materials.
Main Results:
- Successful synthesis of aluminum-alumina-CNF composites.
- Observation of CNF's influence on particle distribution within the cold-sprayed objects.
- Quantification of hardness variations related to CNF content.
- Detailed discussion on particle interaction processes within the composite.
Conclusions:
- Carbon nanofibers significantly impact the microstructure and mechanical properties of aluminum-alumina composites.
- Cold spray is an effective method for producing these advanced materials.
- The findings provide insights for designing tailored composite coatings with enhanced hardness.
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