Synthesis of Mg2X (X = Si, Ge, or Sn) intermetallics by mechanical alloying

Clark, Curtis; Wright, Christopher S.; Suryanarayana, C.; Baburaj, E.G.; Froes, F. H.

doi:10.1016/s0167-577x(97)00081-5

Cited by 62 publications

(48 citation statements)

References 4 publications

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“…It means that the synthesized Mg 2 Si layer in solid-state around the raw silicon particle obstructs the interdiffusion between silicon and magnesium. 6,8) Therefore, it is necessary for the progress of the complete interdiffusion to anneal the green compact at higher temperature for a longer time, when employing the coarse silicon raw materials.…”

Section: Fabrication Of Magnesium Composite With Mg 2 Simentioning

confidence: 99%

Magnesium Matrix Composite with Solid-state Synthesized Mg2Si Dispersoids

et al. 2003

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For improvement of the mechanical properties of magnesium alloys, the material and process design for MMC was established to disperse solid-state synthesized Mg 2 Si in the magnesium alloys, in employing the elemental magnesium and silicon powder mixture. In the repeated plastic working on the raw mixture for the refinement of silicon particles and their uniform distribution in the AZ31 primary powder, Mg 2 Si/Mg composite alloys show fine microstructures and superior mechanical properties: UTS is about 350 MPa and YS is over 300 MPa. This is because of fine Mg 2 Si dispersoids with a mean particle size less than 5 mm as well as refined matrix grain of 2-5 mm. The specific tensile strength is much higher than that of the conventional magnesium and aluminum alloys such as AZ31, AZ91 and 2014(T6) alloys. This material and process design is possible to apply to the mass-production process in using a large scale manufacturing equipments.

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Section: Fabrication Of Magnesium Composite With Mg 2 Simentioning

confidence: 99%

Magnesium Matrix Composite with Solid-state Synthesized Mg2Si Dispersoids

et al. 2003

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“…Since magnesium is the lightest metal in the structural materials, magnesium alloys also have great potential for applications in automotive and aerospace industries. Furthermore, solid-state recycling processes of magnesium alloy chips and/or fragments such as hot extrusion, mechanical alloying, equal channel angular extrusion (ECAE) and cyclically repeated plastic working (RPW) have been developed (Mabuchi et al, 1995;Clark et al, 1997;Kondoh et al, 2003aKondoh et al, , 2003bKondoh & Luagnvaranaunt, 2003c). The recycled materials show superior mechanical properties such as high strength and high strain-rate super-plasticity.…”

Section: Introductionmentioning

confidence: 99%

Thermo-Mechanical Treatment of Glass-Balloon-Dispersed Metal Matrix Composite

Umezawa¹

2011

Metal, Ceramic and Polymeric Composites for Various Uses

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“…7,8) Mechanical milling and grinding provides us a method of solid-state synthesis both for binary and ternary systems. 9,10) Long processing, oxidation and various contaminations are disliked by improvement of thermoelectric properties. Furthermore, this processing fails in controlling carrier concentration, so that thermoelectric properties are deteriorated.…”

Section: Introductionmentioning

confidence: 99%

Solid State Synthesis of Ternary Thermoelectric Magnesium Alloy, Mg2Si1−xSnx

Aizawa

Song²,

Yamamoto

2006

Mater. Trans.

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Profound understanding and survey of magnesium base intermetallic compounds is hindered by various difficulties in their processing and fabrication. Solid-state synthesis via the bulk mechanical alloying (BMA) is free from contaminations and segregation through high reactivity of elemental constituents against crucibles or vials. Magnesium-tin system is employed to demonstrate the solid-state reactivity to Mg 2 Sn from the elemental powder mixture. This process is characterized by the gradual solid-state reaction to Mg 2 Sn with processing time. Since the blended mixture of magnesium and tin with the initial molar ratio of Mg66.7%Sn33.3%, is repeatedly strained via BMA in the controlled conditions, the solid-state reaction advances monotonically with refinement of interparticle distance between magnesium and tin. Ternary semi-conductive compounds, Mg 2 Si 1Àx Sn x for 0 5 x 5 1, are also synthesized by this process. Thermoelectric properties of this ternary alloy are investigated to discuss the effect of tin content on the band-gap, the thermal conductivity, the Seebeck coefficient and the figure-of-merit. In addition, these data are compared to the previously reported results by using melt and solidified samples in order to describe the common features in the solidsolution type thermoelectric compounds. Furthermore, p-n transition behavior is also reported in this ternary alloy system.

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Synthesis of Mg2X (X = Si, Ge, or Sn) intermetallics by mechanical alloying

Cited by 62 publications

References 4 publications

Magnesium Matrix Composite with Solid-state Synthesized Mg<SUB>2</SUB>Si Dispersoids

Magnesium Matrix Composite with Solid-state Synthesized Mg<SUB>2</SUB>Si Dispersoids

Thermo-Mechanical Treatment of Glass-Balloon-Dispersed Metal Matrix Composite

Solid State Synthesis of Ternary Thermoelectric Magnesium Alloy, Mg<SUB>2</SUB>Si<SUB>1−<I>x</I></SUB>Sn<I><SUB>x</SUB></I>

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Synthesis of Mg2X (X = Si, Ge, or Sn) intermetallics by mechanical alloying

Cited by 62 publications

References 4 publications

Magnesium Matrix Composite with Solid-state Synthesized Mg<SUB>2</SUB>Si Dispersoids

Magnesium Matrix Composite with Solid-state Synthesized Mg<SUB>2</SUB>Si Dispersoids

Thermo-Mechanical Treatment of Glass-Balloon-Dispersed Metal Matrix Composite

Solid State Synthesis of Ternary Thermoelectric Magnesium Alloy, Mg<SUB>2</SUB>Si<SUB>1&minus;<I>x</I></SUB>Sn<I><SUB>x</SUB></I>

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Solid State Synthesis of Ternary Thermoelectric Magnesium Alloy, Mg<SUB>2</SUB>Si<SUB>1−<I>x</I></SUB>Sn<I><SUB>x</SUB></I>