Melting at the inter-particle contacts during Spark Plasma Sintering: Direct microstructural evidence and relation to particle morphology

Melting at the inter-particle contacts during Spark Plasma Sintering: Direct microstructural evidence and relation to particle morphology Full article

Journal

Vacuum
ISSN: 0042-207X

Output data

Year: 2020, Volume: 181, Article number : 109566, Pages count : 8 DOI: 10.1016/j.vacuum.2020.109566

Tags

Composites; Inter-particle contacts; Mechanical milling; Spark plasma sintering

Authors

Vidyuk Tomila M. ^1,2 , Dudina Dina V. ^1,3,4 , Korchagin Michail A. ^1,4 , Gavrilov Alexander I. ¹ , Skripkina Tatiana S. ¹ , Ukhina Arina V. ¹ , Anisimov Alexander G. ³ , Bokhonov Boris B. ¹

Affiliations

1	Institute of Solid State Chemistry and Mechanochemistry SB RAS
2	Khristianovich Institute of Theoretical and Applied Mechanics, SB RAS
3	Lavrentyev Institute of Hydrodynamics SB RAS
4	Novosibirsk State Technical University

During Spark Plasma Sintering (SPS), electric current passing through the sample can cause specific effects not observed in the absence of current. We present microstructural evidence of the formation of melt at the inter-particle contacts during SPS of mechanically milled Ti–C–3Cu mixtures transforming into TiC–Cu composites. The shape of the composite particles acquired after ball milling is related to inter-particle melting during SPS. Particles with higher width/length ratios show a greater tendency to melt at the contacts. The reinforcing effect of TiC inclusions plays a key role in preserving the initial inter-particle contact areas small, as plastic flow at high temperatures was inhibited.

Vidyuk T.M. , Dudina D.V. , Korchagin M.A. , Gavrilov A.I. , Skripkina T.S. , Ukhina A.V. , Anisimov A.G. , Bokhonov B.B.
Melting at the inter-particle contacts during Spark Plasma Sintering: Direct microstructural evidence and relation to particle morphology
Vacuum. 2020. V.181. 109566 :1-8. DOI: 10.1016/j.vacuum.2020.109566 WOS Scopus РИНЦ OpenAlex

Submitted:	May 2, 2020
Accepted:	Jun 14, 2020
Published online:	Jul 11, 2020

Web of science:	WOS:000580600700003
Scopus:	2-s2.0-85089392423
Elibrary:	45374095
OpenAlex:	W3041929549

DB	Citing
Scopus	25
OpenAlex	26
Elibrary	30
Web of science	23