TY - JOUR
T1 - Acid-assisted consolidation of powder compacts
T2 - Cold-welding or cold sintering
AU - Dariel, M. P.
AU - Ratzker, M.
AU - Eichmiller, F. C.
N1 - Funding Information:
The assistance of A. Giuseppetti, L. Levin O. Tevet, and O. Yehezkel as well as fruitful discussions with N. Frage are gratefully acknowledged. This work was supported in part by the Israel-U.S. Binational Science Foundation (BSF) Grant No. 94-007 and the NIDR Grant No. P50 DEO9322.
PY - 1999/1/1
Y1 - 1999/1/1
N2 - Silver powder that has been treated in dilute fluoroboric acid solution and compacted at room temperature displays surprisingly elevated flexural and even tensile strength. The density and mechanical strength values increase with increasing compaction pressure. The flexural strength and the elastic moduli of silver powder compacted at 1 GPa, as determined by sound velocity measurements, reach values comparable to those of bulk silver. The results can be tentatively interpreted either in terms of an ambient temperature self-soldering effect of silver in the presence of the fluoroboric acid, acting as a fluxing agent, or as cold liquid-phase sintering in an aqueous liquid medium.
AB - Silver powder that has been treated in dilute fluoroboric acid solution and compacted at room temperature displays surprisingly elevated flexural and even tensile strength. The density and mechanical strength values increase with increasing compaction pressure. The flexural strength and the elastic moduli of silver powder compacted at 1 GPa, as determined by sound velocity measurements, reach values comparable to those of bulk silver. The results can be tentatively interpreted either in terms of an ambient temperature self-soldering effect of silver in the presence of the fluoroboric acid, acting as a fluxing agent, or as cold liquid-phase sintering in an aqueous liquid medium.
UR - http://www.scopus.com/inward/record.url?scp=0032656632&partnerID=8YFLogxK
U2 - 10.1023/A:1004652716470
DO - 10.1023/A:1004652716470
M3 - Article
AN - SCOPUS:0032656632
SN - 0022-2461
VL - 34
SP - 2601
EP - 2607
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 11
ER -