Abstract
This paper reports an evaluation of the fracture behavior of metal/ceramic composites by small punch test. A specific material combination of a stainless steel and a zirconia was employed. Disk specimens for small punch test of metal/ceramic composite having definite metal/ceramic ratios were prepared by powder metallurgical method. Small punch test was conducted at room temperature. A specific transition behaviors from ductile to brittle fracture have been found to depend on the composition and microstructure. The ductile-brittle transition was observed to take place at a zirconia volume fraction of 0.4-0.6. The microstructural investigation of the fracture behaviors was also made. It has been found that fracture behaviors are strongly dependent on the continuity of the stainless steel phase; that is, the skeletal to dispersive structural transition determines the fracture behaviors.
| Original language | English |
|---|---|
| Pages (from-to) | 217-221 |
| Number of pages | 5 |
| Journal | journal of the japan society of powder and powder metallurgy |
| Volume | 36 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1989 Jan 1 |
ASJC Scopus subject areas
- Mechanical Engineering
- Industrial and Manufacturing Engineering
- Metals and Alloys
- Materials Chemistry