Effect of dopants on the phase formation in microwave processed Al–Al2O3 composites

Das, Susmita; Mukhopadhyay, Anoop Kumar; Datta, Someswar; Dandapat, Nandadulal; Basu, Debabrata

doi:10.1016/j.jallcom.2010.04.016

Cited by 6 publications

(1 citation statement)

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“…3, which indicates the relative density is increased with a increasing sintering temperature under 700°C, the relative density is decreased with a increasing sintering temperature above 700°C, the electricresistivity is shown the opposite tendency. Because the melting point of Al phase is 660.4°C, the composites receive the higer relative density sintered at 700°C, when the sintering temperature is up to the melting point, the inside of composites is easier to show the more liquid content, the liquid is filled into the pore and crack [11][12][13], and the liquid contacts the raw material particles (Figure 4-a), the electricresistivity is shown the lower value. When Key Engineering Materials Vol.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Al-Al2O3 Metal Ceramics via Powder Metallurgy Methods

Wang

Song

et al. 2016

KEM

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Metal ceramics are a important new engineering materials with the advantages of ceramics and metal materials. The Al-Al2O3 metal ceramics were prepared via the powder metallurgy methods and characterized in this paper, which lay the base for preparing the high performance cermet materials. Through the results and analysis, the conclusions are shown that the relative density is increased with a increasing forming pressure, the electrical resistivity is decreased with a increasing forming pressure. The relative density is increased with a increasing sintering temperature under 700°C, the relative density decreases with a increasing sintering temperature above 700°C, the electrical resistivity is shown the opposite tendency. Through the optimizing the technological parameter, such as the sintering temperature at 700°C, the forming pressure under 20MPa, the Al content for 75wt%, Al-Al2O3 metal ceramics are successfully prepared with the high relative density and the low electrical resistivity, the relative density is 97.52%, and the electrical resistivity is 101.34Ω·m

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Section: Resultsmentioning

confidence: 99%