Результаты исследований: Научные публикации в периодических изданиях › статья по материалам конференции › Рецензирование
Decomposition of Ag2C2O4 in a spark plasma sintering apparatus : Morphological study and application for materials joining. / Dudina, D. V.; Matvienko, A. A.; Sidelnikov, A. A. и др.
в: Materials Today: Proceedings, Том 16, 2019, стр. 187-190.Результаты исследований: Научные публикации в периодических изданиях › статья по материалам конференции › Рецензирование
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TY - JOUR
T1 - Decomposition of Ag2C2O4 in a spark plasma sintering apparatus
T2 - 6th International Symposium on Advanced Ceramics, ISAC 2018
AU - Dudina, D. V.
AU - Matvienko, A. A.
AU - Sidelnikov, A. A.
AU - Legan, M. A.
AU - Mali, V. I.
AU - Esikov, M. A.
AU - Gribov, P. A.
AU - Boldyrev, V. V.
PY - 2019
Y1 - 2019
N2 - Silver oxalate Ag2C2O4 is an interesting compound from both fundamental and practical viewpoints. Decomposition of Ag2C2O4 results in the formation of metallic silver, whose size and morphology can be tailored for different applications. In this work, we focused on the morphological features of silver that forms upon decomposition of Ag2C2O4 in a spark plasma sintering (SPS) apparatus. While crystals heated in a conventional furnace decompose to produce silver in the form of a pseudomorph, decomposition induced by heating in a SPS chamber at a rate of 30 ºC·min-1 via a pressureless process results in the formation of foam-like porous silver. Decomposition of Ag2C2O4 was also carried out under pressure by placing the powder between copper plates and heating the assembly in a SPS die. A feasibility study has shown that Ag2C2O4 powders can be used for joining copper plates in a fast process enabled by the SPS method. Joints formed by the SPS method at 300ºC and 13 MPa were formed by silver with 500-nm crystallites; the shear strength of the joints was 45 MPa.
AB - Silver oxalate Ag2C2O4 is an interesting compound from both fundamental and practical viewpoints. Decomposition of Ag2C2O4 results in the formation of metallic silver, whose size and morphology can be tailored for different applications. In this work, we focused on the morphological features of silver that forms upon decomposition of Ag2C2O4 in a spark plasma sintering (SPS) apparatus. While crystals heated in a conventional furnace decompose to produce silver in the form of a pseudomorph, decomposition induced by heating in a SPS chamber at a rate of 30 ºC·min-1 via a pressureless process results in the formation of foam-like porous silver. Decomposition of Ag2C2O4 was also carried out under pressure by placing the powder between copper plates and heating the assembly in a SPS die. A feasibility study has shown that Ag2C2O4 powders can be used for joining copper plates in a fast process enabled by the SPS method. Joints formed by the SPS method at 300ºC and 13 MPa were formed by silver with 500-nm crystallites; the shear strength of the joints was 45 MPa.
KW - Brazing
KW - Decomposition
KW - Morphology
KW - Silver oxalate
KW - Spark Plasma Sintering
KW - brazing
KW - morphology
KW - decomposition
KW - silver oxalate
UR - http://www.scopus.com/inward/record.url?scp=85086914277&partnerID=8YFLogxK
U2 - 10.1016/j.matpr.2019.05.242
DO - 10.1016/j.matpr.2019.05.242
M3 - Conference article
AN - SCOPUS:85086914277
VL - 16
SP - 187
EP - 190
JO - Materials Today: Proceedings
JF - Materials Today: Proceedings
SN - 2214-7853
Y2 - 10 March 2018 through 12 March 2018
ER -
ID: 25862147