Increase of Thermal Conductivity during Sintering of AIN

Kuzenkova,; Fesenko, I. P.; Yupko, L.M.

doi:10.4028/www.scientific.net/msf.62-64.361

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“…This aluminum oxide will further react with yttrium oxide to form yttrium aluminates (Bohr et al 1991, Kuzenkova et al 1990, Virkar et al 1991. The concentration of oxygen in a localized area will contribute to the formation of aluminum oxide in that area; the relative abundance of aluminum oxide and yttrium oxide in a local area as well as the sintering temperature will then determine which types of yttrium aluminates are formed.…”

Section: Introductionmentioning

confidence: 99%

Cathodoluminescence imaging—the study of yttrium aluminates distribution in aluminum nitride

Wang

1995

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Summary: Cathodoluminescence imaging is a technique which may combine a high-resolution spectroscopic method with a high-spatial resolution electron imaging technique to characterize chemical identity as well as physical size, shape, and spatial distribution of the materials which have cathodoluminescence. Cathodoluminescence imaging has been used to characterize yttrium aluminates in aluminum nitride ceramics. By digitally combining cathodoluminescence and backscattering electron images, it is possible not only to distinguish between different yttrium aluminates, but also to determine the size, shape, and spatial distribution of these phases. This information provides a route to understanding the local residual oxygen concentration before sintering, the amount of sintering aid to be added, and possible sintering schedule. Furthermore, this information may be related to other properties of aluminum nitride such as residual oxygen concentration and thermal conductivity.

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Section: Introductionmentioning

confidence: 99%

Cathodoluminescence imaging—the study of yttrium aluminates distribution in aluminum nitride

Wang

1995

Scanning

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Increase of Thermal Conductivity during Sintering of AIN

Cited by 1 publication

References 0 publications

Cathodoluminescence imaging—the study of yttrium aluminates distribution in aluminum nitride

Cathodoluminescence imaging—the study of yttrium aluminates distribution in aluminum nitride

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