Spark plasma sintering of Nb/Ti3Al(Si)C2-TiC laminated composites

被引：6

作者：

Kashkarov, E. B. ^{[1
]}

Krotkevich, D. G. ^{[1
]}

Abdulmenova, A. V. ^{[1
]}

Ivashutenko, A. S. ^{[1
]}

Perevislov, S. N. ^{[2
]}

Lider, A. M. ^{[1
]}

Travitzky, N. ^{[1
,3
]}

机构：

[1] Natl Res Tomsk Polytech Univ, Tomsk 634050, Russia

[2] Chem Russian Acad Sci, Grebenshchikov Inst Silicate 4, St Petersburg 199034, Russia

[3] Friedrich Alexander Univ Erlangen Nurnberg, Dept Mat Sci, Glass & Ceram, D-91054 Erlangen, Germany

来源：

MATERIALIA | 2023年 / 27卷

关键词：

Preceramic paper; Laminated composites; Spark plasma sintering; MAX phases; Microstructure; DEVELOPING HIGH TOUGHNESS; MECHANICAL-PROPERTIES; TEMPERATURE; BEHAVIORS; CERAMICS; HARDNESS; TI3ALC2; SIZE;

D O I：

10.1016/j.mtla.2023.101673

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work describes novel Nb/Ti3Al(Si)C-2-TiC laminated composites fabricated by spark plasma sintering (SPS) at 1250 degrees C, 50 MPa for 5 min. Preceramic papers filled with Ti3Al(Si)C-2 MAX-phase and Nb foils were used as feedstock. Microstructure, phase composition and mechanical properties were evaluated by scanning electron microscopy, X-ray diffraction and three-point bending test, respectively. It was found that the reaction of pre-ceramic paper-derived layers with Nb layers results in the formation of 16.5 mu m-thick interlayers mainly composed of columnar Nb-Al intermetallic, Ti-Nb-Si and Nb-Si based phases. The laminated composites showed a brittle-ductile fracture behavior characterized by multiple deflection and branching of cracks at interfaces and plastic deformation of Nb layers. Crack deflection and delamination occur mainly near the interface between the reaction layer and ceramic layer due to the presence of more brittle silicide and carbide phases. The flexural strength of the fabricated composites was similar to 350 MPa at 1.5% strain.

引用

页数：6

共 41 条

[1] Effects of spark plasma sintering temperature on densification, hardness and thermal conductivity of titanium carbide [J].