Enhancing overall mechanical performance of metallic materials using two-directional microwave assisted rapid sintering

Gupta, Manoj; Wong, Eugene Y.

doi:10.1016/j.scriptamat.2004.11.006

Cited by 241 publications

(141 citation statements)

References 8 publications

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“…Conventional sintering is done by using a traditional resistance heating furnace [81,82], in which green compact is heated from outer surface to inner core of the powder compact. This results in poor microstructural properties in the core of the material [83]. Microwaves can be utilized to sinter the green compact as it utilizes both electric and magnetic field to sinter the compact.…”

Section: Use Of Powder Metallurgy With Microwave Sintering Routementioning

confidence: 99%

An Insight into Evolution of Light Weight High Entropy Alloys: A Review

Kumar

Gupta

2016

Metals

144

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High Entropy Alloys (HEAs) are the most recently developed new class of materials, which are known for their unique structural properties. Lightweight materials are currently in excessive demand for transportation and energy saving applications. In this review, efforts have been made to summarize the work done towards the development of HEAs targeting lightweight applications. Some new synthesis techniques are suggested for the fabrication of lightweight HEAs (LWHEAs). The concept of porous structure fabrication, microwave sintering of green compact, casting by disintegration melt deposition and advanced manufacturing using additive manufacturing are discussed as future directions of LWHEAs synthesis. LWHEAs for potential biomedical applications have also been addressed.

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Section: Use Of Powder Metallurgy With Microwave Sintering Routementioning

confidence: 99%

An Insight into Evolution of Light Weight High Entropy Alloys: A Review

Kumar

Gupta

2016

Metals

144

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“…As mentioned earlier, microwave-assisted sintering has several advantages compared to many powder metallurgy-based techniques [36]. Microwave processing involves sintering of specimens by passing a microwave through them along with an external heating source coupled with the microwaves.…”

Section: Properties Of Microwave Sintered Al-metal Matrix Compositesmentioning

confidence: 99%

“…Microwave processing involves sintering of specimens by passing a microwave through them along with an external heating source coupled with the microwaves. Additionally, microwave processing has the advantage of reaching the metal melting point temperatures in a short interval of time, resulting in uniform and dense microstructures [36,37].…”

Section: Properties Of Microwave Sintered Al-metal Matrix Compositesmentioning

confidence: 99%

Microwave Rapid Sintering of Al-Metal Matrix Composites: A Review on the Effect of Reinforcements, Microstructure and Mechanical Properties

Reddy

Shakoor

Mohamed

et al. 2016

Metals

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Aluminum metal matrix composites (AMMCs) are light-weight materials having wide-spread use in the automobile and aerospace industries due to their attractive physical and mechanical properties. The promising mechanical properties of AMMCs are ascribed to the size and distribution of the reinforcement, as well as to the grain size of the matrix. Microwave rapid sintering involves internal heating of aluminum compacts by passing microwave energy through them. The main features of the microwave sintering technique are a short processing time and a low energy consumption. The aim of this review article is to briefly present the microwave rapid sintering process and to summarize the recent published work on the sintering and properties of pure Al and Al-based matrix composites containing different reinforcements.

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“…It has been demonstrated that microwave sintering has the potential of enhanced densification and suppressed grain growth due to a fast heating rate and apparent low-temperature firing (Tsay et al, 2004;Clark et al, 1997). In the previous studies (Gupta and Wong, 2005;Mizuno et al, 2004;Travitzky et al, 2000), researchers have evaluated the advantages of the performance of microwave sintered ceramics just on a macroscopic scale, focusing on tensile strength, elastic modulus, toughness and so on, and found overall mechanical performance is improved by microwave sintering.…”

Section: Introductionmentioning

confidence: 99%

Improving sinterability of ceramics using hybrid microwave heating

Zhi-jian¹,

Gotoh²,

Hirose³

2009

Journal of Materials Processing Technology

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Microwave processing, as a new method for sintering ceramics, has key advantages such as increased heating rate, uniform heating and reduced cost compared to conventional methods. It is generally accepted that microwave sintering can improve the macroscopic mechanical performances of ceramics, however, the performances of microwave sintered ceramics on the microscopic scale are rarely investigated. In the 2 present study, the ceramics are sintered by hybrid microwave sintering (HMS), which combines the characteristics of microwave heating and conventional heating. To evaluate the homogeneous performance of the sintered ceramics, the behaviors of thermal residual stress distribution in the microwave sintered and conventionally sintered ceramics were investigated by X-ray diffraction technique. The thermal residual stress investigation shows microwaves can sinter an ceramics in entire volume while offering improved mechanical properties. Subsequently, the distribution behaviors of pore ratio and hardness in the ceramics were investigated respectively. The experiment results confirm that the sinterability of ceramics is homogenously improved by hybrid microwave sintering.

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Enhancing overall mechanical performance of metallic materials using two-directional microwave assisted rapid sintering

Cited by 241 publications

References 8 publications

An Insight into Evolution of Light Weight High Entropy Alloys: A Review

An Insight into Evolution of Light Weight High Entropy Alloys: A Review

Microwave Rapid Sintering of Al-Metal Matrix Composites: A Review on the Effect of Reinforcements, Microstructure and Mechanical Properties

Improving sinterability of ceramics using hybrid microwave heating

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