skip to main content

Title: Ultrasonic deagglomeration of aluminum nanopowders with multi-walled carbon nanotube mixtures

Comprehensive investigations of aluminum nanopowders, multi-walled carbon nanotubes, and aluminum mixtures with multi-walled carbon nanotubes subjected to ultrasonic deagglomeration in a liquid medium were performed, using microstructural, X-ray diffraction, thermogravimetric, and calorimetric analyses, and specific surface area measurements. The regime of ultrasonic deagglomeration of aluminum nanopowders with multi-walled carbon nanotubes in a liquid medium is described, during which the division of large agglomerates and creation of homogeneous distribution of mixtures components in the volume takes place. It was determined that ultrasonic treatment influences the morphology and crystalline structure of investigated mixtures, contributes to the appearance of X-ray amorphous phase, decreases the specific surface area of the aluminum nanopowder from 13 to 12 m{sup 2}/g, and increases the pore volume and average size from 0.04 to 0.06 cm{sup 3}/g and from 12 to 19 nm, respectively. The size of coherently-diffracting domain was determined by the X-ray diffraction analysis is close to that estimated from the specific surface area and corresponds to average crystallites size in the materials under study.
Authors:
; ; ;  [1] ;  [2] ;  [3]
  1. National Research Tomsk State University, Tomsk, 634050 (Russian Federation)
  2. (Russian Federation)
  3. Georg Simon Ohm University of Applied Sciences, Nuremberg (Germany)
Publication Date:
OSTI Identifier:
22492549
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1683; Journal Issue: 1; Conference: International conference on advanced materials with hierarchical structure for new technologies and reliable structures 2015, Tomsk (Russian Federation), 21-25 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AGGLOMERATION; ALUMINIUM; AMORPHOUS STATE; CALORIMETRY; CARBON NANOTUBES; CRYSTAL STRUCTURE; LIQUIDS; MICROSTRUCTURE; MIXTURES; MORPHOLOGY; POWDERS; SPECIFIC SURFACE AREA; THERMAL GRAVIMETRIC ANALYSIS; ULTRASONIC MACHINING; WALLS; X RADIATION; X-RAY DIFFRACTION