2016
DOI: 10.1016/j.ceramint.2016.04.028
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Structural, thermal and mechanical properties of aluminum nitride ceramics with CeO2 as a sintering aid

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Cited by 36 publications
(10 citation statements)
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“…This is suggested to be related to the release of oxygen in solid solution which dissolved in AlN crystals in the AlN precipitation step owing to the formation of the liquid phase. During sintering rare‐earth oxides reacted with Al 2 O 3 coating the AlN particle to form liquid phase that promote sintering and the liquid phases crystallize into aluminates upon cooling . It reveals that the development of the grains is improved with Y 2 O 3 additives as the temperature about 1500°C.…”
Section: Resultsmentioning
confidence: 99%
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“…This is suggested to be related to the release of oxygen in solid solution which dissolved in AlN crystals in the AlN precipitation step owing to the formation of the liquid phase. During sintering rare‐earth oxides reacted with Al 2 O 3 coating the AlN particle to form liquid phase that promote sintering and the liquid phases crystallize into aluminates upon cooling . It reveals that the development of the grains is improved with Y 2 O 3 additives as the temperature about 1500°C.…”
Section: Resultsmentioning
confidence: 99%
“…Recently, more and more attention has been given on the low‐temperature sintering of AlN ceramics considering reducing manufacture cost and benefiting cofiring of multilayer substrates . Aluminum nitride is difficult to achieve solid‐state sintering without using submicron meter powders or high pressures due to its highly covalent bonding . For full densification, rare‐earth and alkaline earth oxides are often added as sintering aids in the fabrication of AlN ceramics.…”
Section: Introductionmentioning
confidence: 99%
“…Many works to promote the densification of AlN ceramic bodies using different kinds of sintering additives such as CeO, Sm 2 O 3 , Y 2 O 3 , CaO, CaZrO 3 , and their multiple co-additions have been investigated [2][3][4][5]. Some of the recent results showing the thermal conductivities obtained in polycrystalline bodies are 90-156 W/mK as summarized in Table 1, which is far below the theoretical value and has a wide span from each other.…”
Section: Aln Ceramics With Sintering Additivesmentioning
confidence: 99%
“…Some of the recent results showing the thermal conductivities obtained in polycrystalline bodies are 90-156 W/mK as summarized in Table 1, which is far below the theoretical value and has a wide span from each other. Ceria (CeO) doped AlN exhibited a stiff increase in thermal conductivity and decent increase in mechanical strength with a small amount of addition (~1.5 wt%), compared to the yttria (Y 2 O 3 ) addition [2]. High energy sintering method like spark plasma sintering (SPS) was applied [3,4] as well as conventional solid state reaction (SSR) method [2] for effective low temperature densification process.…”
Section: Aln Ceramics With Sintering Additivesmentioning
confidence: 99%
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