Effect of thermal annealing on microstructure and mechanical properties of a gradient structured tantalum prepared by plasma activated sintering

2012 ◽  
Vol 30 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Y.S. Zhang ◽  
X.M. Zhang ◽  
X.F. Bai ◽  
P. Tan ◽  
F.C. Dong ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Annealing ◽  
Activated Sintering ◽  
Microstructure And Mechanical Properties ◽  
Plasma Activated Sintering

Fabrication and Fracture Characteristics of AlN/Ni Laminated Composites

2014 ◽  
Vol 804 ◽  
pp. 183-186
Author(s):  
Hai Yun Jin ◽  
Pu Jin ◽  
Yu Feng Li ◽  
Bo He ◽  
Nai Kui Gao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Laminated Composites ◽  
Activated Sintering ◽  
Fracture Characteristics ◽  
Microstructure And Mechanical Properties ◽  
New Phase ◽  
Plasma Activated Sintering

The AlN/Ni laminated composites were fabrication by plasma activated sintering. In the composites, the AlN layers were matrix layers and the Ni layers were as the toughening layers. The microstructure and mechanical properties were studied. XRD and SEM results showed that there was no new phase generated during sintering. The composites were strengthened by the metal Ni layer.

Preparation Technology and Mechanical Properties of Fe-C Composites Fabricated by Plasma Activated Sintering

2013 ◽  
Vol 345 ◽  
pp. 223-227
Author(s):  
Gui Wu Liu ◽  
Chong Jian Zhou ◽  
San Tuan Zhao ◽  
Kuo Zhang ◽  
Zhi Guo Ye ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Bending Strength ◽  
Applied Pressure ◽  
High Energy ◽  
Sintering Process ◽  
Preparation Technology ◽  
Activated Sintering ◽  
Powder Composition ◽  
Original Powder ◽  
Plasma Activated Sintering

The Fe-C composites were fabricated by a combination of high-energy ball milling of Fe-C powder mixtures and plasma activated sintering process. An orthogonal experiment in four factors (including original powder composition, sintering temperature, applied pressure and holding time) and three levels was employed to investigate the effects of preparation technology on mechanical properties (bending strength and hardness) of the Fe-C composite. The experimental results show that the crystalline Fe3C phase can be produced by the rapid sintering process, though it is cannot form theoretically due to the high Gibbs free energy, and more or less holes and composition segregation phenomenon coexist in the composite. The original powder composition plays the leading role in both the mechanical properties of the Fe-C composites. However, the effects of the other parameters on the bending strength and hardness of the composite are somewhat different. The optimal technology combinations for the bending strength and hardness are obtained as follows: 50Fe+50Fe3C/1373 K/400 s/20 MPa and 50Fe+50Fe3C/50 MPa/1273 K/400 s, respectively.

Sign in / Sign up

Export Citation Format

Share Document