Rapid Sintering of Nanostuctured Tungsten Carbide by High-Frequency Induction Heating and its Mechanical Properties

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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Consolidation and Mechanical Properties of Nanostructured SiC from Mechanically Activated Powder by High-Frequency Induction-Heated Sintering

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.123-125.635 ◽

2010 ◽

Vol 123-125 ◽

pp. 635-638

Author(s):

In Jin Shon ◽

Hyun Su Kang ◽

Na Ra Park ◽

In Yong Ko

Keyword(s):

Mechanical Properties ◽

High Frequency ◽

Sintering Behavior ◽

Hard Material ◽

Induced Current ◽

Sintering Process ◽

Simultaneous Application ◽

Hard Materials ◽

Rapid Sintering ◽

High Frequency Induction

The rapid sintering of nanostuctured SiC hard materials was investigated with high-frequency induction heating sintering process. The advantage of this process is that it allows very quick densification to near theoretical density and prohibition of grain growth in nanostuctured materials. A dense nanostructured SiC hard material was produced with simultaneous application of 500 MPa pressure and induced current within 2 minutes. The effect of the ball milling times on the sintering behavior, grain size and mechanical properties of binderless SiC was investigated.

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Rapid sintering of ultra-fine WC-10 wt% Co by high-frequency induction heating

Journal of Materials Science ◽

10.1007/s10853-005-2422-9 ◽

2005 ◽

Vol 40 (11) ◽

pp. 2849-2854 ◽

Cited By ~ 47

Author(s):

H. C. Kim ◽

I. J. Shon ◽

Z. A. Munir

Keyword(s):

Induction Heating ◽

High Frequency ◽

Rapid Sintering ◽

High Frequency Induction

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Mechanical properties of (W,Ti)C and (W,Ti)C–NiAl3 cermet consolidated by the high-frequency induction-heating method

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2013.02.187 ◽

2013 ◽

Vol 568 ◽

pp. 73-77 ◽

Cited By ~ 13

Author(s):

Wonbaek Kim ◽

Chang-Yul Suh ◽

Ki-Min Roh ◽

Sung-Wook Cho ◽

Kwon-Il Na ◽

...

Keyword(s):

Mechanical Properties ◽

Induction Heating ◽

High Frequency ◽

Heating Method ◽

High Frequency Induction

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Simultaneous Synthesis and Densification of Nanostructured NbSi2-SiC-Si3N4 by Rapid Sintering

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.123-125.209 ◽

2010 ◽

Vol 123-125 ◽

pp. 209-212

Author(s):

In Jin Shon ◽

Hyun Su Kang ◽

Soo Kyung Bae ◽

In Yong Ko

Keyword(s):

Mechanical Properties ◽

Fracture Toughness ◽

High Frequency ◽

Induced Current ◽

Simultaneous Application ◽

Average Grain Size ◽

Rapid Sintering ◽

One Step ◽

Simultaneous Synthesis ◽

High Frequency Induction

A dense nanostructured 5NbSi2-SiC-Si3N4 composite was synthesized by the high-frequency induction-heated combustion synthesis (HFIHCS) method within 1 minute in one step from mechanically activated powders of 4NbN, NbC and 14Si. A highly dense 5NbSi2-SiC-Si3N4 composite with relative density of up to 98% was produced under the simultaneous application of a pressure of 80 MPa and the induced current. The average grain size and mechanical properties (hardness and fracture toughness) of the composite were investigated.

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