Effects of consolidation temperature and pressure on microstructures and mechanical properties of Cu-based bulk amorphous alloys consolidated by spark plasma sintering

2008 ◽  
Vol 453 (1-2) ◽  
pp. 108-114 ◽  
Author(s):  
Chang Kyu Kim ◽  
Sunghak Lee ◽  
Seung Yong Shin ◽  
Do Hyang Kim
Keyword(s):  
Mechanical Properties ◽  
Spark Plasma Sintering ◽  
Amorphous Alloys ◽  
Bulk Amorphous Alloys ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Temperature And Pressure ◽  
Microstructures And Mechanical Properties ◽  
Consolidation Temperature

Microstructures and Mechanical Properties of Consolidated Mg-Zn-Y Alloy

2007 ◽  
Vol 534-536 ◽  
pp. 833-836 ◽  
Author(s):  
J.K. Lee ◽  
Taek Soo Kim ◽  
Ha Guk Jeong ◽  
Jung Chan Bae
Keyword(s):  
Mechanical Properties ◽  
Solid Solution ◽  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Solid Solution Matrix ◽  
Solution Matrix ◽  
Consolidation Temperature

The microstructure and mechanical properties of the Mg97Zn1Y2 alloy prepared by spark plasma sintering of gas atomized powders have been investigated. After consolidation, precipitates were observed to form in the α-Mg solid solution matrix of the Mg97Zn1Y2 alloy. These precipitates consisted of Mg12YZn and Mg24Y5 phases. The density of the consolidated bulk Mg-Zn-Y alloy was 1.86 g/cm3. The ultimate tensile strength and elongation were dependent on the consolidation temperature, which were in the ranges of 280 to 293 MPa and 8.5 to 20.8 %, respectively.

Preparation and Properties of β-SiAlON-cBN Composites Using Y2O3, B2O3 and Al as Additives

2014 ◽  
Vol 602-603 ◽  
pp. 380-383
Author(s):  
Chao He ◽  
Xiao Fei Shi ◽  
Xin Yan Yue ◽  
Jiang Jun Wang ◽  
Hong Qiang Ru
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Relative Density ◽  
Spark Plasma Sintering ◽  
Crack Deflection ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Microstructures And Mechanical Properties

SiAlON-cBN composites with different contents of cBN were consolidated by spark plasma sintering (SPS) at 1450°C using Y2O3, B2O3 and Al as additives. The effect of cBN content on the density, phase compositions, microstructures and mechanical properties of β-SiAlON-cBN composites was investigated. With increasing the cBN content, the density and hardness of β-SiAlON-cBN composites decreased. Fracture toughness could increase thanks to the crack deflection resulted from the cBN particles. For β-SiAlON-10 wt% cBN composites, the optimum hardness and highest relative density were 13 GPa and 96.4 %, respectively. For β-SiAlON-40 wt% cBN composites, the highest fracture toughness was KIC = 5.3 MPa∙m1/2.

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