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Effect of one-dimensional materials on the thermal conductivity of Al2O3/glass composite.
- Source :
-
Journal of Alloys & Compounds . May2016, Vol. 667, p23-28. 6p. - Publication Year :
- 2016
-
Abstract
- It is attempt to enhance the thermal conductivity of Al 2 O 3 /glass by introducing one-dimensional materials into the Al 2 O 3 /glass composite which are fired at 850 °C. The influences of AlN whiskers, carbon fibers and copper fibers on the thermal conductivity of Al 2 O 3 /30 vol% glass composites were studied by the laser thermal conductance instrument, XRD and SEM. The results show that the adding of one-dimensional materials with excellent thermal conductivity remarkably enhances the thermal property of the composites. The oxidation of AlN or copper was not detected when the composites were sintered at 850 °C with 25 MPa for 45 min in a nitrogen atmosphere. Fibers are more effective to enhance the densification of the composites than the whiskers. The highest value of the thermal conductivity of Al 2 O 3 /glass/copper fiber achieves 38.9 W (mK) −1 , an increase of about 500%. The clear enhancement of the thermal conductivity is due to the bridging network formed by the one-dimensional materials. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09258388
- Volume :
- 667
- Database :
- Academic Search Index
- Journal :
- Journal of Alloys & Compounds
- Publication Type :
- Academic Journal
- Accession number :
- 113104363
- Full Text :
- https://doi.org/10.1016/j.jallcom.2016.01.120