Sintering Uniformity and Reproducibility with 2.45 GHz Microwaves in an Industrial Sized Chamber

Shulman, Holly S.; Walker, William J.; Treado, T.A.; Marks, Michael Raj; Fall, Morgana L.; Evans, Steven J.; Tracy, Michaël

doi:10.1002/9781118380826.ch2

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…On the other hand, the determining step in metallurgy powder process is the best method for sintering process 8 . Nowadays microwave sintering of ceramics has received more attention due to its specific characteristics 9 .…”

Section: Introductionmentioning

confidence: 99%

WC-Co Particles Reinforced Aluminum Matrix by Conventional and Microwave Sintering

et al. 2015

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Metal matrix composites of Al-WC (10, 15 and 20 wt%) were prepared by microwave (without holding) and conventional sintering (held for 1 hour) processes at various temperatures between 650-950 °C. The results indicated that the highest density of conventional and microwave sintering corresponds to 97.4 ± 1.2% and 98.6 ± 0.8 of theoretical density, respectively; The highest bending strength of conventional and microwave sintered samples were 223 ± 12 and 256 ± 12 MPa, respectively. XRD patterns showed the decomposition of WC particles and formation of Al 5 W and Al 12 W interfacial reaction product phases in both processes. SEM studies showed that WC reinforcement particles were more likely to be agglomerated in microwave compared to conventional sintering process.

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Section: Introductionmentioning

confidence: 99%

WC-Co Particles Reinforced Aluminum Matrix by Conventional and Microwave Sintering

et al. 2015

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“…Shorter process duration may be achieved by the use of microwave heating, where heat is generated by the interaction of microwaves with the ceramic material. In this case, volumetric heating takes place, thus very high heating rates are possible [19]. This is different from conventional methods where heat is transferred by the mechanisms of conduction, radiation and convection.…”

Section: Introductionmentioning

confidence: 93%

“…The reverse thermal effect in microwave heating does provide some advantages such as rapid heating of materials without overheating the surface and removal of gases from porous materials without cracking [22]. It is therefore possible to process ceramic foams by microwave heating, in a fraction of the time it takes for conventional firing [19]. That is due to the different crystal structure and loss mechanism in various ceramics that causes some differences in their microwave absorption levels, therefore the degree of interaction between microwave and ceramic changes with temperature [23].…”

Section: Introductionmentioning

confidence: 98%