Structure and properties of AlN ceramics prepared with spark plasma sintering of ultra-fine powders

2008 ◽  
Vol 496 (1-2) ◽  
pp. 269-272 ◽  
Author(s):  
Xueli Du ◽  
Mingli Qin ◽  
Abdur Rauf ◽  
Zhihao Yuan ◽  
Baohe Yang ◽  
...  
Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 800
Author(s):  
Pavel Novák ◽  
Zdeněk Barták ◽  
Kateřina Nová ◽  
Filip Průša

This paper describes the structure and properties of an innovative Fe-Al-Si alloy with a reduced amount of silicon (5 wt. %) in order to avoid excessive brittleness. The alloy was produced by a combination of mechanical alloying and spark plasma sintering. Nickel and titanium were independently tested as the alloying elements for this alloy. It was found that wear resistance, which reached values comparable with tool steels, could be further improved by the addition of nickel. Nickel also improved the high-temperature oxidation behavior, because it lowers the liability of the oxide layers to spallation. Both nickel and titanium increased the hardness of the alloy. Titanium negatively influenced oxidation behavior and wear resistance because of the presence of titanium dioxide in the oxide layer and the brittle silicides that caused chipping wear, respectively.


2021 ◽  
pp. 158-161
Author(s):  
E.V. Ageeva ◽  
B.N. Sabel’nikov

The results of experimental studies of a KNT16 tungsten-free hard alloy sintered from electroerosive powders obtained in ethyl alcohol are presented. It is shown that the use of the spark plasma sintering method to produce products from powder obtained by electroerosive dispersion of the alloy KNT16 will ensure high performance of parts due to the uniformity of the surface, favorable structure and low porosity of the product.


2021 ◽  
pp. 117-121
Author(s):  
E.V. Ageeva

The results of experimental studies of the composition, structure, and properties of WNiFe-95 pseudoalloy sintered from electroerosive powders obtained in lighting kerosene are presented. It is shown that the use of the spark plasma sintering method to produce products from powder obtained by electrodispersing of this pseudoalloy will ensure high performance of parts due to the surface uniformity, favorable structure and low porosity of the product.


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