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Thermal expansion and elastic anisotropy in single crystal al2o3 and sic reinforcements
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Salem, Jonathan A. Li, Zhuang Bradt, Richard C. |
| Copyright Year | 1994 |
| Description | In single crystal form, SiC and Al2O3 are attractive reinforcing components for high temperature composites. In this study, the axial coefficients of thermal expansion and single crystal elastic constants of SiC and Al2O3 were used to determine their coefficients of thermal expansion and Young's moduli as a function of crystallographic orientation and temperature. SiC and Al2O3 exhibit a strong variation of Young's modulus with orientation; however, their moduli and anisotropies are weak functions of temperature below 1000 C. The coefficients of thermal expansion exhibit significant temperature dependence, and that of the non-cubic Al2O3 is also a function of crystallographic orientation. |
| File Size | 671046 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940024602 |
| Archival Resource Key | ark:/13960/t10p6086q |
| Language | English |
| Publisher Date | 1994-03-01 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Temperature Dependence Ceramic Matrix Composites Silicon Carbides Modulus of Elasticity Elastic Anisotropy Single Crystals Thermal Expansion Refractory Materials Sapphire Reinforcing Fibers Metal Matrix Composites Fiber Orientation Whiskers Crystals Thermal Stresses Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
