Improved microyield strength in beryllium produced by vapor deposition
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 863-868 |
| Journal / Publication | Scripta Materialia |
| Volume | 38 |
| Issue number | 6 |
| Publication status | Published - 13 Feb 1998 |
| Externally published | Yes |
Link(s)
Abstract
Thick Be deposits were produced by vapor deposition at a substrate temperature of 400°C. Deposits were prepared from both stationary and rotating substrates. In the case of a stationary substrate, the microstructure of the deposit consisted of columnar grains with their major axis parallel to the direction of incidence of the depositing atoms. By contrast, a rotating substrate produced deposits with a microstructure consisting of helical columnar grains. This helical grained structure results in a significant improvement in microyield strength; the microyield strengths for deposits produced from stationary and rotating substrates are 57.3 and 213.5 MPa, respectively. The improved microyield strength is proposed to be a result of the presence of geometrically necessary dislocations in the deposit produced from a rotating substrate.
Bibliographic Note
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Citation Format(s)
Improved microyield strength in beryllium produced by vapor deposition. / Nieh, T. G.; Wadsworth, J.
In: Scripta Materialia, Vol. 38, No. 6, 13.02.1998, p. 863-868.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
