High Thermal Conductivity Carbon/Carbon Composites.

reportActive / Technical Report | Accession Number: ADA308144 | Open PDF

Abstract:

The objective of this project was to develop a low-cost, high thermal conductivity carboncarbon composite with a mesophase pitch-based matrix. A low cost, continuous powder coating process was developed which allows the production of a flexible pre-impregnated pitch-based powder. This process was used to produce towpreg from AR mesophase pitch powder and three different carbon fibers T300 PAN-based fiber, P55 pitch-based fiber, and an experimental high thermal conductivity pitch-based fiber. The thermal conductivities parallel to the fibers of the graphitized T300AR-120 and P55AR-120 composites was 80.5 and 135.5 Wm-K, respectively. The ribbon fiber enforced composites exhibited thermal conductivities parallel to the fiber and transverse to the fiber of 145 and 213.5 Wm-K, respectively. This indicates fiber shape can affect matrix properties. A finite element model was developed to predict the thermal conductivity of carboncarbon composites, both parallel and transverse to the fiber direction, composed of isotropic and anisotropic materials. The model was able to accurately predict the average thermal conductivity of the composites made in this study. p2

Author(s):
Edie, Dan D.
Author Organization(s):
CLEMSON UNIV SC DEPT OF CHEMICAL ENGINEERING
Descriptive Note:
Final technical rept. 16 Oct 92-31 Aug 95,
Pagination:
0016

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
05-5002
Contract/Grant Number(s):
N00014-92-J-4104
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_5.3_Planning; JCA_5_Command and Control; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_1.2.3_Educating; JCA_8_Building Partnerships; JCA_4.6_Engineering; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_8.2_Shape
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*CARBON CARBON COMPOSITES, *THERMAL CONDUCTIVITY, MATHEMATICAL MODELS, PRODUCTION, LOW COSTS, MATERIALS, POWDERS, FINITE ELEMENT ANALYSIS, SHAPE, ACRYLONITRILE POLYMERS, CARBON FIBERS, PHASE, COATINGS, ANISOTROPY, ISOTROPISM, CONTINUOUS PROCESSING, PITCH(MATERIAL)
Field(s)/Group(s):
Laminates and Composite Materials, Inorganic Chemistry, Electricity and Magnetism, Thermodynamics
Keyword(s):
TOWPREG, MESOPHASE PITCH BASED MATRIX
Report Date:
1995 Sep 30
Creation Date:
1996 Jun 11