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Effect of Heat-treatment Temperature on Mechanical Properties of Pyrocarbon and Carbon/Carbon Composites
Yu Shou-Quan1,2; Zhang Wei-Gang1; Yu, SQ
2010-03-01
Source PublicationJOURNAL OF INORGANIC MATERIALS
ISSN1000-324X
Volume25Issue:3Pages:315-320
AbstractCarbon/carbon composites were infiltrated by isobaric, isothermal chemical vapor infiltration using propane as the carbon source. Effects of heat-treatment temperature up to 2500 degrees C on the microstructure and the mechanical properties of pyrocarbon and carbon/carbon composites were investigated by X-ray diffractometry, polarized light microscope, scanning electron microscope, nanoindentation, and three points bending tests. The microstructural investigations of samples reveal a pronounced decreased of the interlayer spacing with a simultaneous enhance of the graphitization degree, and polarized light microscope results exhibit distinct concentric cracks due to local stress induced graphitization, the number and width of cracks increase with the increase of heat-treatment temperature. Nanoindentation carried out on the pyrocarbon shows the indentation behavior is purely elastic, but the curves of loading and unloading do not overlap with significant amount of energy dissipation, the elastic modulus of pyrocarbon increases with the increase of heat-treatment temperature. On the other hand, with the decrease of fiber strength and the debonding of fiber/matrix interface after heat-treatment, the flexural strength and modulus of the carbon/carbon composites decrease.
KeywordCarbon/carbon Composites Heat-treatment Mechanical Properties
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.3724/SP.J.1077.2010.00315
Indexed BySCI
Language英语
WOS KeywordC/C COMPOSITES ; MICROSTRUCTURE ; BEHAVIOR ; CARBON
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000276281300018
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6203
Collection多相复杂系统国家重点实验室
Corresponding AuthorYu, SQ
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Yu Shou-Quan,Zhang Wei-Gang,Yu, SQ. Effect of Heat-treatment Temperature on Mechanical Properties of Pyrocarbon and Carbon/Carbon Composites[J]. JOURNAL OF INORGANIC MATERIALS,2010,25(3):315-320.
APA Yu Shou-Quan,Zhang Wei-Gang,&Yu, SQ.(2010).Effect of Heat-treatment Temperature on Mechanical Properties of Pyrocarbon and Carbon/Carbon Composites.JOURNAL OF INORGANIC MATERIALS,25(3),315-320.
MLA Yu Shou-Quan,et al."Effect of Heat-treatment Temperature on Mechanical Properties of Pyrocarbon and Carbon/Carbon Composites".JOURNAL OF INORGANIC MATERIALS 25.3(2010):315-320.
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