Specifications

destructive evaluation - Numerical example - Open boundary condition - Theoretical

foundations - Wentzel-Kramers-Brillouin method

Classification code: 408.2 Structural Members and Shapes - 415 Metals, Plastics, Wood

and Other Structural Materials - 421 Strength of Building Materials; Mechanical Properties -

921.6 Numerical Methods

DOI: 10.1080/09500839.2012.729958

Database: Compendex

Accession number: 20130315909831

Title: In situ preparation and mechanical properties of CNTs/MCMBs composites

Authors: Cheng, Youliang1, 2 ; Li, Tiehu2 ; Fang, Changqing1 ; Liu, Pei1 ; Yu, Ruien1 ; Hu,

Jingbo1/程有亮;李铁虎;方长青;刘佩;于瑞恩;胡京博

Author affiliation:

1 School of Printing and Packaging Engineering, Xi'An University of Technology, No. 5 South

Jinhua Road, Xi'an 710048, Shaanxi, China

2 School of Materials Science and Engineering, Northwestern Polytechnical University, No. 127

West Youyi Road, Xi'an 710072, Shaanxi, China

Corresponding author: Fang, C. (fcqxaut@163.com)

Source title: Composites Part B: Engineering

Abbreviated source title: Compos Part B: Eng

Volume: 47

Issue date: April 2013

Publication year: 2013

Pages: 290-297

Language: English

ISSN: 13598368

CODEN: CPBEFF

Document type: Journal article (JA)

Publisher: Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom

Abstract: By adding carbon nanotubes (CNTs) into medium temperature coal tar pitch,

mesocarbon microbeads (MCMBs) were obtained via thermal condensation, then CNTs/MCMBs

composites were in situ prepared using compression molding. The morphology, structure and

mechanical properties of CNTs/MCMBs composites were characterized by optical microscope,

digital camera, scanning electron microscope (SEM) and mechanical test machine. Results

showed that CNTs were used as the nucleating agent and could inhibit the growth and

coalescence of MCMBs. The optical textures of CNTs/MCMBs composites showed similar

characteristics to the thermal condensation products from coal tar pitch with CNTs. The mass

ratio of CNTs to coal tar pitch played an important role in the mechanical properties of

CNTs/MCMBs composites. The density and bending strength of CNTs/MCMBs composite first

increased and then decreased with the increase of the proportion of CNTs. When the proportion

of CNTs was 5 wt%, the density of the composite reached the maximum (1.76 g/cm3). In addition,

the bending strength of the composite reached the maximum (79.6 MPa) as adding 2 wt% CNTs