Microstructure and mechanical properties of a nanocomposite oxide system : the Nextel 720 fibre
Overview & Synopsis
The two phase microstructure and the mechanical properties of the 3M Nextel 720 fibre annealed at different temperatures were investigated. The as received fibre was found to be composed of pseudo-tetragonal mullite aggregates enclosing elongated or round shaped α-alumina grains. After annealing the fibre at 1400°C the mullite structure became orthorhombic while losing alumina. A small increase of the Young modulus was observed because of the change of relative amounts of alumina and mullite and a diminution of the porosity. Thanks to its original microstructure the fibre was found to have a reduced creep rate when compared to other polycristalline oxide fibres but it was found to be extremely sensitive to external conditions and to suffer from premature failure due to slow crack growth (SCG).
hal.science)
← / → for pages • + / - for zoom • 0 to fit width
Powered by Mozilla PDF.js v3.11
Document Information
| Document Title | Microstructure and mechanical properties of a nanocomposite oxide system : the Nextel 720 fibre |
|---|---|
| Author / Organization | Florence Deleglise, Marie-Hélène Berger, Anthony R. Bunsell |
| Subject & Discipline | Multidisciplinary Academic Open Research |
| Categories | Science & Mathematics |
| Publication Year | 1999 |
| License / Rights | Open Access / Creative Commons |
| Resource Verification | Listed PDF (Verification Pending) |
| Original Host Website |
HAL Open Science
(hal.science)
|
| File Format | application/pdf (Portable Document Format) |
| Language | EN |
| Catalog ID | DOC-141370 |
| Original Source Link | Visit Source Page on hal.science » |