NOTE: This item is not available outside the Texas A&M University network. Texas A&M affiliated users who are off campus can access the item through NetID and password authentication or by using TAMU VPN. Non-affiliated individuals should request a copy through their local library's interlibrary loan service.
The effect of inhibitors on material and mechanical properties of oxidized carbon-carbon composites
| dc.creator | Elliott, Charles Howard | |
| dc.date.accessioned | 2012-06-07T22:40:19Z | |
| dc.date.available | 2012-06-07T22:40:19Z | |
| dc.date.created | 1995 | |
| dc.date.issued | 1995 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-1995-THESIS-E445 | |
| dc.description | Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item. | en |
| dc.description | Includes bibliographical references. | en |
| dc.description | Issued also on microfiche from Lange Micrographics. | en |
| dc.description.abstract | The carbon-carbon laminates examined in this research program are two-dimensional, eight harness satin weaves with boron carbide (B4C) inhibitor particles and a multi-layer silicon carbide (SiC) coating. These inhibitor particles included in the oxidation protection system (OPS) react with oxygen that penetrates through the cracks of the external barrier coatings to form a glass phase, and act as an internal sealant to provide extended oxidation protection. Oxidation testing of the carbon-carbon specimens is performed as a function of time and temperature in order to isolate the contribution of the inhibitor. Oxidation at constant temperature examines the importance of temperature on the length of exposure. The "temperature cycling" oxidation approach examines the importance of fatigue crack formation due to expansion and contraction. Mass loss and material property degradation is assessed with subsequent exploratory nondestructive testing of rheometry and piezoelectric ultrasonic composite oscillator techniques (PUCOT). An analytical diffusion model is developed to predict composite degradation for given exposure conditions, and these results are compared with the experimental data generated. Oxidation specimens are trimmed from a single C-C panel resulting in coupons having dimensions of approximately 4 mm thick, 11.5 mm wide, and 37 mm long, with coating on the front and back sides only. | en |
| dc.format.medium | electronic | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en_US | |
| dc.publisher | Texas A&M University | |
| dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
| dc.subject | mechanical engineering. | en |
| dc.subject | Major mechanical engineering. | en |
| dc.title | The effect of inhibitors on material and mechanical properties of oxidized carbon-carbon composites | en |
| dc.type | Thesis | en |
| thesis.degree.discipline | mechanical engineering | en |
| thesis.degree.name | M.S. | en |
| thesis.degree.level | Masters | en |
| dc.type.genre | thesis | en |
| dc.type.material | text | en |
| dc.format.digitalOrigin | reformatted digital | en |
Files in this item
This item appears in the following Collection(s)
-
Digitized Theses and Dissertations (1922–2004)
Texas A&M University Theses and Dissertations (1922–2004)
Request Open Access
This item and its contents are restricted. If this is your thesis or dissertation, you can make it open-access. This will allow all visitors to view the contents of the thesis.