Abstract
A joining technique for oxide ion conducting ceramics, such as yttria-stabilized zirconia, was developed, utilizing oxidation of transiently formed aluminum melt. Two yttria-stabilized zirconia (YSZ) blocks were joined via Al/Ni alloy/Al interlayers at 1273 to 1473 K for 3.6 to 28.8 ks in a vacuum (< 0.2 Pa) with an applied load of 80 MPa. The average fracture strength increased with increasing the joining time and temperature. A strong four-point bend strength of 170 MPa was obtained for the specimen joined at 1473 K for 14.4 ks, which was fractured at YSZ block. Alumina interlayer, which is expected to act as a protective layer for further oxidation of Ni alloy, was formed between YSZ and Ni alloy in the specimen after joining.
| Original language | English |
|---|---|
| Pages (from-to) | 983-986 |
| Number of pages | 4 |
| Journal | Journal of the Ceramic Society of Japan |
| Volume | 117 |
| Issue number | 1369 |
| DOIs | |
| Publication status | Published - 2009 Sept |
| Externally published | Yes |
Keywords
- Aluminum
- Fracture strength
- Joining
- Ni alloy
- Oxidation
- Yttria-stabilized zirconia
ASJC Scopus subject areas
- Ceramics and Composites
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry