Characterizations and Evaluations on the Bonding Quality of Molybdenum Disilicides

Characterizations and Evaluations on the Bonding Quality of Molybdenum DisilicidesIn this study, we proposed a new method using the spark plasma sintering technique to bond ceramics to alloys. MoSi2and 316L stainless steel were chosen as sample materials and can be welded well with graded interlayers. We found that dense uniformed bondings were achieved because of the comparable coefficient of thermal expansion of the interlayers. Furthermore, such a compatibility between the graded interlayers prevented MoSi2with low toughness from the occurrence of microcracks resulted from the residual stresses formed during cooling of the bondings.

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Aluminum/Stainless Steel Clad Materials Fabricated via Spark Plasma Sintering

Materials ◽

10.3390/ma13010239 ◽

2020 ◽

Vol 13 (1) ◽

pp. 239 ◽

Cited By ~ 1

Author(s):

Kwangjae Park ◽

Dasom Kim ◽

Kyungju Kim ◽

Hansang Kwon

Keyword(s):

Thermal Conductivity ◽

Stainless Steel ◽

Thermal Expansion ◽

Spark Plasma Sintering ◽

Heat Dissipation ◽

Coefficient Of Thermal Expansion ◽

Laser Flash ◽

High Heat ◽

Plasma Sintering ◽

Spark Plasma

Aluminum (Al)/stainless steel (SUS) clad materials were fabricated via the process of spark plasma sintering (SPS) using Al powder/bulk and an SUS sheet. Three Al/SUS clad types were fabricated: powder/bulk (P/B), bulk/bulk (B/B), and bulk/powder/bulk (B/P/B). During the SPS, Al and SUS reacted with each other, and intermetallic compounds were created in the clads. The thermal conductivity and thermal-expansion coefficient were measured using a laser flash analyzer and dynamic mechanical analyzer, respectively. The Al/SUS (P/B) clad had a thermal conductivity of 159.5 W/mK and coefficient of thermal expansion of 15.3 × 10−6/°C. To analyze the mechanical properties, Vickers hardness and three-point bending tests were conducted. The Al/SUS (P/B) clad had a flexural strength of about 204 MPa. The Al/SUS clads fabricated via SPS in this study are suitable for use in applications in various engineering fields requiring materials with high heat dissipation and high heat resistance.

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316L Stainless Steel Microstructural, Mechanical, and Corrosion Behavior: A Comparison Between Spark Plasma Sintering, Laser Metal Deposition, and Cold Spray

Journal of Materials Engineering and Performance ◽

10.1007/s11665-021-05571-0 ◽

2021 ◽

Author(s):

A. V. Radhamani ◽

Hon Chung Lau ◽

S. Ramakrishna

Keyword(s):

Stainless Steel ◽

Spark Plasma Sintering ◽

Cold Spray ◽

Corrosion Behavior ◽

316L Stainless Steel ◽

Metal Deposition ◽

Laser Metal Deposition ◽

Plasma Sintering ◽

Spark Plasma

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On the Fabrication of Porous 316L Stainless Steel by Spark Plasma Sintering

Journal of Korean Powder Metallurgy Institute ◽

10.4150/kpmi.2002.9.1.050 ◽

2002 ◽

Vol 9 (1) ◽

pp. 50-60

Keyword(s):

Stainless Steel ◽

Spark Plasma Sintering ◽

316L Stainless Steel ◽

Plasma Sintering ◽

Spark Plasma

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Effects of Particle Size on Microstructures and Properties of Si/Al Composites

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.873.361 ◽

2013 ◽

Vol 873 ◽

pp. 361-365 ◽

Cited By ~ 1

Author(s):

Wei Chen Zhai ◽

Zhao Hui Zhang ◽

Fu Chi Wang ◽

Shu Kui Li

Keyword(s):

Thermal Conductivity ◽

Particle Size ◽

Thermal Expansion ◽

Flexural Strength ◽

Spark Plasma Sintering ◽

Thermal Conductivity Coefficient ◽

Coefficient Of Thermal Expansion ◽

High Strength ◽

Plasma Sintering ◽

Spark Plasma

Si/Al composites with different Si particle sizes were fabricated using spark plasma sintering process for electronic packaging. The density, thermal conductivity, coefficient of thermal expansion and flexural strength of the composites were investigated. Effect of Si particle size on structure and properties of the Si/Al composites were studied. The results showed that the Si/Al composites synthesized by spark plasma sintering were composed of Si and Al. Al was uniformly distributed among the Si phase, leading to a high thermal conductivity (>120 W/m·k). The relative density of the Si/Al composites decreased with increasing Si particle size. Small Si particle size produced small grains, leading to a low coefficient of thermal expansion and a high strength. There is an optimal matching among the thermal conductivity, coefficient of thermal expansion and flexural strength when the Si particle size was 44 um.

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