Mechanically alloyed aluminum metal matrix composites

Hashiguchi, Don H.; Tricker, David; Tarrant, Andrew

doi:10.1117/12.2272421

Cited by 7 publications

(12 citation statements)

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“…The charts below outline the general manufacturing process and show microstructures of varying SupremEX ® MMCs like the 640XA version. [Hashiguchi, 2017] Figure 3. Microstructure comparison of a cast Al-SiC MMC and two SupremEX ® MMCs.…”

Section: Advancements In Powder Metallurgy and MMC Mechanical Alloyingmentioning

confidence: 99%

“…SupremEX® 640XA particle size and microstructure are most like the center image. [Hashiguchi, 2017] This paper shall discuss the material properties of SupremEX ® 640XAand AyontEX TM 13, results of design and fabrication projects completed at Outpost Technologies, provide manufacturing feasibility and cost assessments, then propose a 0.6meter ground test telescope concept to compliment Mohn and Vukobratovich's work with these advanced materials. Next, ongoing, and future work related to these Al-SiC MMCs and Al-Si alloys shall be summarized.…”

Section: Advancements In Powder Metallurgy and MMC Mechanical Alloyingmentioning

confidence: 99%

“…In applications where vibration, aeroacoustic loads, launch loads, or shock may be design drivers, Al-SiC and Al-Si materials may be considered for structural, metering, or substrate materials. The figures below show that SiC content increases the damping loss ratios and vibrational loss factors [Hashiguchi, 2017]. These figures are drawn from Hashiguchi's 2017 publication in SPIE.…”

Section: Materials Heritage Properties and Design Datamentioning

confidence: 99%

“…Figure 2. Materion's powder metallurgy and mechanical alloying of Al-SiC and Al-Si materials [Hashiguchi, 2017]. …”

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confidence: 99%

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Aluminum metal matrix composites: a capable low-cost mirror substrate

Few,

Echols

2023

Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems IV

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Outpost Technologies designed, manufactured, and tested a 0.305-meter aluminum-silicon carbide metal matrix composite (Al-SiC MMC) mirror for infrared balloon gondola observatory application. Al-SiC MMCs, such as Materion’s SupremEX®, have high specific stiffness, excellent thermal conductivity, and lower CTE than most conventional metals. Furthermore, recent research and development efforts support a brand-new material for investigation: AyontEX™ 13 aluminum-silicon (Al-Si) alloy. Outpost identified significant cost and capability gaps in mirror substrate design trades between ultra-premium beryllium and SiC and conventional aerospace materials and proposes new materials for consideration. The Al-SiC MMC and Al-Si alloy programmatic and technical value proposition combines considerable improvements in specific stiffness and thermal performance at minimal costs increases over aluminum substrates. Assuming congruent geometry, SupremEX® 640XA Al-SiC MMCs reduce gravity sag errors by 47% and increases mirror and structural modes by 35% versus aluminum 5000 and 6000 series without affecting system mass. AyontEX™ 13 also exhibits higher specific strength and stiffness compared to aluminum and shows promise as an uncoated mirror substrate with optical surface finish properties achieved during diamond turning. Outpost presents study results, manufacturability assessments, and ground test concepts for TRL-advancing activities to bring the SupremEX® and AyontEXTM materials before future optics programs as highly capable and low-cost mirror substrates. Lastly, a discussion of ongoing and future work for ultraviolet (UV) and large (> 1.25-meter) Al-SiC MMC and Al-Si alloy applications.

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Section: Advancements In Powder Metallurgy and MMC Mechanical Alloyingmentioning

confidence: 99%

Section: Advancements In Powder Metallurgy and MMC Mechanical Alloyingmentioning

confidence: 99%

Section: Materials Heritage Properties and Design Datamentioning

confidence: 99%

“…Figure 2. Materion's powder metallurgy and mechanical alloying of Al-SiC and Al-Si materials [Hashiguchi, 2017]. …”

mentioning

confidence: 99%

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Aluminum metal matrix composites: a capable low-cost mirror substrate

Few,

Echols

2023

Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems IV

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“…Materion's mechanical alloying and powder metallurgy technologies have been used for decades to produce commercially available particle reinforced aluminium-SiC SupremEX ® MMCs [30,31]. A schematic summarizing this powder metallurgy route is given by Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Aluminium-Silicon Lightweight Thermal Management Alloys with Controlled Thermal Expansion

Lewis,

Tarrant,

Frehn

et al. 2024

Preprint

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With the ever-growing emphasis on global decarbonization and rapid increases in the power density of electronics equipment in recent years, new methods and lightweight materials have been developed to manage heat load as well as interfacial stresses associated with Coefficient of Thermal Expansion (CTE) mismatch between components. The Al-Si system provides an attractive combination of CTE performance and high thermal conductivity whilst being a very lightweight option. Such materials are of interest to industries where thermal management is a key design criterion, such as aerospace, automotive, consumer electronics, defense, EV and space. This paper will describe the development and manufacture of a family of high-performance hypereutectic Al-Si alloys (AyontEX™) by a powder metallurgy method. These alloys are of particular interest for structural heat sink applications that require high reliability under thermal cycling (CTE of 17μm/(m·°C)) as well as reflective optics and instrument assemblies that require good thermal and mechanical stability (CTE of 13μm/(m·°C)). Critical performance relationships are presented, coupled with the microstructure, physical and mechanical properties of these Al-Si alloys.

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Additive manufacturing of aluminum metal matrix composites: Mechanical alloying of composite powders and single track consolidation with laser powder bed fusion

Parsons

Shaik

2022

Additive Manufacturing

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Mechanically alloyed aluminum metal matrix composites

Cited by 7 publications

References 0 publications

Aluminum metal matrix composites: a capable low-cost mirror substrate

Aluminum metal matrix composites: a capable low-cost mirror substrate

Aluminium-Silicon Lightweight Thermal Management Alloys with Controlled Thermal Expansion

Additive manufacturing of aluminum metal matrix composites: Mechanical alloying of composite powders and single track consolidation with laser powder bed fusion

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