High-frequency induction heated sintering of High-energy ball milled TiC0.5N0.5 powders and mechanical properties of the sintered products

2013 ◽  
Vol 39 (1) ◽  
pp. 585-591 ◽  
Author(s):  
Wonbaek Kim ◽  
Chang-Yul Suh ◽  
Ki-Min Roh ◽  
Jae-Won Lim ◽  
Sujeong Lee ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Frequency ◽  
High Energy ◽  
Energy Ball ◽  
High Frequency Induction

scholarly journals Mechanochemical Synthesis and Rapid Consolidation of Nanocrystalline 3NiAl-Al2O3Composites

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
In-Jin Shon ◽  
In-Yong Ko ◽  
Seung-Hoon Jo ◽  
Jung-Mann Doh ◽  
Jin-Kook Yoon ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Mechanochemical Synthesis ◽  
High Frequency ◽  
Nanocrystalline Materials ◽  
Physical And Mechanical Properties ◽  
High Energy ◽  
Reinforced Composite ◽  
Energy Ball ◽  
High Frequency Induction

Nanopowders of 3NiAl and Al2O3were synthesized from 3NiO and 5Al powders by high-energy ball milling. Nanocrystalline Al2O3reinforced composite was consolidated by high-frequency induction-heated sintering within 3 minutes from mechanochemically synthesized powders of Al2O3and 3NiAl. The advantage of this process is that it allows very quick densification to near theoretical density and inhibition grain growth. Nanocrystalline materials have received much attention as advanced engineering materials with improved physical and mechanical properties. The relative density of the composite was 97%. The average Vickers hardness and fracture toughness values obtained were 804 kg/mm2and 7.5 MPa⋅m1/2, respectively.

Mechanochemical Synthesis and Rapid Consolidation of Nanostructured Nb–ZrO2 Composite

2020 ◽  
Vol 20 (7) ◽  
pp. 4253-4256
Author(s):  
Seong-Eun Kim ◽  
Jin-Kook Yoon ◽  
In-Jin Shon
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
High Frequency ◽  
Ball Mill ◽  
High Energy ◽  
Molar Ratio ◽  
Replacement Reaction ◽  
High Energy Ball Mill ◽  
Energy Ball ◽  
High Frequency Induction

Nb2O5 and Zr powders at a molar ratio of 1:2.5 were milled using a high-energy ball mill. The mixture powders produced Nb and ZrO2 nanopowders through a solid replacement reaction (Nb2O5+ 2.5Zr 2Nb + 2.5ZrO2). The synthesized nanopowders were consolidated via high-frequency induction heated sintering (HFIHS) within two min. The mechanical properties (hardness and fracture toughness) of nanostructured 2Nb–2.5ZrO2 composite were then evaluated. Both the hardness and fracture toughness of the 2Nb–2.5ZrO2 composite were higher than those of monolithic ZrO2.

Properties and Rapid Consolidation of Nanostructured Fe3Al Compound by High Frequency Induction Heating

2010 ◽  
Vol 123-125 ◽  
pp. 759-762
Author(s):  
In Jin Shon ◽  
Tae Wan Kim ◽  
Jung Mann Doh ◽  
Jin Kook Yoon ◽  
Kwon Il Na ◽  
...  
Keyword(s):  
High Frequency ◽  
High Energy ◽  
Sintering Behavior ◽  
Combined Effects ◽  
Induced Current ◽  
Mechanical Pressure ◽  
Rapid Sintering ◽  
Energy Ball ◽  
Sintering Method ◽  
High Frequency Induction

A dense nanostuctured Fe3Al was consolidated by high frequency induction heated sintering method within 2 minutes from mechanically synthesized powders of Fe3Al and milled powders of 3Fe+Al. The consolidation was accomplished under the combined effects of a induced current and mechanical pressure. The grain size, sintering behavior and hardness of Fe3Al sintered from horizontally milled Fe+Al powders and high energy ball milled Fe3Al powder were compared. Keywords: Combustion synthesis; Nanomaterials; Mechanical properties; Rapid sintering

Synthesis of powder metallurgy Ti-3Fe-2Al alloy using high-frequency induction heating

2019 ◽  
Vol 34 (01n03) ◽  
pp. 2040031
Author(s):  
Stella Raynova ◽  
Khaled Alsharedah ◽  
Fei Yang ◽  
Leandro Bolzoni
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Induction Heating ◽  
High Frequency ◽  
High Efficiency ◽  
High Vacuum ◽  
Residual Porosity ◽  
Effect Of Temperature ◽  
Vacuum Furnace ◽  
High Frequency Induction

A powder metallurgy approach was applied for the synthesis of an [Formula: see text] Ti-2Al-3Fe alloy. Blends of the elemental Ti, Al and Fe powders were compacted and subsequently sintered. High-frequency induction heating (HFIH) instead of conventional high-vacuum furnace heating was used for the sintering, due to its high efficiency. The effect of temperature on the level of densification, residual porosity and mechanical properties was studied. Electron dispersive spectrum analysis was used to study the dissolution and homogenization of the alloying elements. The results showed that a short induction sintering (IS) cycle in the range of 10–15 min is sufficient to achieve significant powder consolidation, evident by the increase of the density and mechanical properties. The residual porosity diminishes with the increase of the sintering temperature. Full dissolution of the alloying powders is completed after sintering at temperatures above those of [Formula: see text]- to [Formula: see text]-phase transformation.

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