Properties and pulsed current activated consolidation of nanostuctured MgSiO3-MgAl2O4 composites

Shon, In-Jin; Du, Song-Lee; Doh, Jung-Mann; Yoon, Jin‐Kook

doi:10.1007/s12540-013-5017-z

Cited by 10 publications

(3 citation statements)

References 20 publications

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“…A schematic of this is shown in Ref. [14][15][16]. The four major stages in the synthesis are as follows.…”

Section: Methodsmentioning

confidence: 99%

“…Therefore, controlling grain growth during sintering is one of the keys to the commercial success of nanostructured materials. In this regard, the pulsed current activated sintering method (PCASM), which can make dense materials within several minutes, has been shown to be effective in achieving this goal [14][15][16]. In addition, the spark plasma formed between the powder particles enhances the clean surface of the particles, and the rate of diffusion between the particles [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

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Mechanical properties and rapid low-temperature consolidation of nanocrystalline Cu-ZrO2 composites by pulsed current activated heating

et al. 2015

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Metal-ceramic compositr can be obtained with an optimum combination of low density, high oxidation resistance, and high hardness of the ceramic and toughness of the metal. Therefore, metal matrix composites are recognized as candidates for aerospace, automotive, biomaterials, and defense applications. Despite its many attractive properties, the low fracture toughness of ZrO2 limits its wide application. One of the most obvious tactics to improve the mechanical properties has been to fabricate a nanostructured material and composite material. Nano-powders of Cu and ZrO2 were synthesized from 2CuO and Zr powders by high-energy ball milling. Nanocrystalline 2Cu-ZrO2 composite was consolidated within 5 minutes from mechanically synthesized powders of ZrO2 and 2Cu at low temperature, by a pulsed current activated sintering method. The relative density of the composite was 98.5%. The fracture toughness of 2Cu-ZrO2 composite in this study is higher than that of monolithic ZrO2, without great decrease of hardness.

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“…A schematic of this is shown in Ref. [14][15][16]. The four major stages in the synthesis are as follows.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical properties and rapid low-temperature consolidation of nanocrystalline Cu-ZrO2 composites by pulsed current activated heating

et al. 2015

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“…In this regard, the high-frequency induction-heated sintering(HFIHS) method, which can make dense materials within 2 minutes, has been shown to be effective in achieving not only rapid densification to near theoretical density, but also the prohibition of grain growth in nanostructured materials. [19][20][21] This paper reports on the rapid synthesis and consolidation of dense nanostructured MoSi 2 -NbSi 2 composite starting with high-energy ball-milled nanopowders. The mechanical properties and grain sizes of the resulting nanostructured MoSi 2 -NbSi 2 composite were also evaluated.…”

Section: Introdutionmentioning

confidence: 99%

Simultaneous Synthesis and Consolidation of Nanostructured MoSi2-NbSi2 Composite by High-Frequency Induction Heated Sintering and Its Mechanical Properties

Kang¹,

Shon²

2014

Korean. J. Mater. Res.

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The current concern about these materials (MoSi 2 and NbSi 2 ) focuses on their low fracture toughness below the ductile-brittle transition temperature. To improve the mechanical properties of these materials, the fabrication of nanostructured and composite materials has been found to be effective. Nanomaterials frequently possess high strength, high hardness, excellent ductility and toughness, and more attention is being paid to their potential application. In this study, nanopowders of Mo, Nb, and Si were fabricated by high-energy ball milling. A dense nanostructured MoSi 2 -NbSi 2 composite was simultaneously synthesized and sintered within two minutes by high-frequency induction heating method using mechanically activated powders of Mo, Nb, and Si. The high-density MoSi 2 -NbSi 2 composite was produced under simultaneous application of 80MPa pressure and an induced current. The sintering behavior, mechanical properties, and microstructure of the composite were investigated. The average hardness and fracture toughness values obtained were 1180 kg/mm 2 and 3 MPa·m 1/2 , respectively. These fracture toughness and hardness values of the nanostructured MoSi 2 -NbSi 2 composite are higher than those of monolithic MoSi 2 or NbSi 2 .

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Pulsed current activated synthesis and rapid consolidation of a nanostructured Mg2Al4Si5O18 and its mechanical properties

et al. 2015

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Properties and pulsed current activated consolidation of nanostuctured MgSiO3-MgAl2O4 composites

Cited by 10 publications

References 20 publications

Mechanical properties and rapid low-temperature consolidation of nanocrystalline Cu-ZrO2 composites by pulsed current activated heating

Mechanical properties and rapid low-temperature consolidation of nanocrystalline Cu-ZrO2 composites by pulsed current activated heating

Simultaneous Synthesis and Consolidation of Nanostructured MoSi2-NbSi2 Composite by High-Frequency Induction Heated Sintering and Its Mechanical Properties

Pulsed current activated synthesis and rapid consolidation of a nanostructured Mg2Al4Si5O18 and its mechanical properties

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