über das Skull‐Schmelzen

Aßmus, W.; Whippey, N.R.

doi:10.1002/cite.330550912

Cited by 20 publications

(15 citation statements)

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“…Single crystals of YSZ (yttria-stabilized zirconia, 9.5 mol% Y 2 O 3 ) were prepared by the skull melting method [24,25]. Thin plates in the dimensions 10 × 10 × 1 mm 3 with the crystallographic orientations (100) and (111) were nitrided in a graphite-heated resistance furnace (FCT -FSW 100/150-2200-LA/PS, FCT-Anlagenbau, Sonneberg, Germany) at temperatures from 1500°C up to 1900°C and reaction times between 2 and 12 h in nitrogen atmosphere (1.01 × 10 5 Pa).…”

Section: Preparationmentioning

confidence: 99%

Ionic and electronic conductivity of nitrogen-doped YSZ single crystals

et al. 2009

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Section: Preparationmentioning

confidence: 99%

Ionic and electronic conductivity of nitrogen-doped YSZ single crystals

et al. 2009

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“…To obtain cation-doped (Y, Ca, Mg, Sc) ZrO 2 single crystals, used as starting materials for nitridation, the skull-melting technique was used, described in detail by Assmus and co-workers [12]. Single crystals with dimensions of some cm 3 were prepared.…”

Section: Methodsmentioning

confidence: 99%

Nitrogen‐doped zirconia single crystals

Rödel¹,

Wang

Lerch

et al. 2006

Cryst. Res. Technol.

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The aim of this work is the preparation of nitrogen-doped single crystals of cation-stabilized zirconia. Thin plates of these crystals were nitrided in a graphite heated resistance furnace with nitrogen as reaction gas. Several dwell times and reaction temperatures were tested and their effect on the amount of incorporated nitrogen is investigated. During nitridation at high temperatures a rock salt-type 'ZrN' layer grows on the surface, leading to the destruction of the crystal. In contrast to the fluorite-type bulk material, which can be described as a fast anion conductor, the surface layer shows electronic conductivity. For possible applications of the bulk material (solid electrolyte) the formation of the surface layer must be avoided. Therefore, the interface between surface epilayer and bulk material was investigated in detail by electron microscopy methods.

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“…ZrO 2 , Al 2 O 3 , and MgO) using high-frequency electromagnetic radiation [11][12][13][14][15]. Electromagnetic fields with frequencies in the range of 500 kHz-5 MHz are typically applied.…”

Section: The Skull Meltermentioning

confidence: 99%