Aluminium Oxide (Al₂O₃)

Material

Sintered/fused alumina (Al₂O₃) refractory fired at high temperature

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Characteristics

Spalling resistance, high strength at high temperature. Chemically stable in various atmospheres and very low contamination effects on fired products.

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Applications

Kiln furniture (setters tiles, saggers etc.) for electronic componets (MLCC, NTC, PZT etc.), technical ceramics and lining material for high temperature furnaces.
**Many kiln furniture materials can also be ZrO₂ spray or plasma coated

• Fired at extremely high temperature
• Excellent not only for its stability under load (sagging resistance) but also for its spalling resistance ensuring a long life expectancy in terms of achieved sintering cycles.

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KE-120SP

85.3% Al₂O₃ - Coarse grains. Good spalling resistance. Commonly used as slide/base plates for pusher-type furnaces (max. temp. 1750°C). Used in various furnaces to fire multi-layer packages, alumina substrate and many kinds of alumina porcelains.

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KE-164SP

85.1% Al₂O₃ - Coarse grains. Good spalling resistance. Commonly used as slide/base plates for pusher-type furnace (max. temp. 1750°C). In various furnaces to fire multi-layer package, alumina substrate and many kinds of alumina porcelains.

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KE-130

86.3% Al₂O₃ - Medium-sized grains. Exceptional sagging resistance. Typical material for saggers, setter tiles, slide plates etc.

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KE-701

90.7% Al₂O₃ - Ideal material for large size plates, setters

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KE-F250

88.3% Al₂O₃ - Fine-sized grains. Provides very smooth surface and improved spalling resistance. Used for setter tiles and various other applications.

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KE-F344

89.0% Al₂O₃ - Very fine-sized grains. Provides superior smooth surface conditions but is limited for use in small-sized setter tiles/saggers.

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KE-F350

92.2% Al₂O₃ - Very fine-sized grains. Superior smooth surface combined with improved spalling resistance used for setter tiles/saggers.

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This is only an excerpt of our materials, we offer many more materials in the above series, each specially developed for specific uses. for more information on the complete portfolio and datasheets please contact us.

• High purity and high density alumina, fused alumina
• Setter tiles, saggers. Especially useful for applications where silica is detrimental or in high temperature reducing atmospheres

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995-FMG

99.8% Al₂O₃ - Medium-sized grains. Material used for setter tiles, saggers and slide plates.

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995-FFG

99.8% Al₂O₃ - Similar to 995FMG, but possible to grind for obtaining higher quality smooth surfaces. In various furnaces to fire multi-layer package, alumina substrate and many kinds of alumina porcelains.

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99

98.9% Al₂O₃ - Fine-sized grains. Superior smooth surface. Material for posts, weights etc

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AZ95-FFG

95.0% Al₂O₃ - Fused alumina/fine-sized grains. Ideal material for setter tiles and saggers displaying following characteristics:

• Better spalling resistance and better reactivity resistance than 995-FMG and 995-FFG
• Zirconia is added to the fused alumina
• Setter tiles for firing high-purity alumina porcelains, ferrites etc

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This is only an excerpt of our materials, we offer many more materials in the above series, each specially developed for specific uses. for more information on the complete portfolio and datasheets please contact us.

Y-1H

99.7% Al₂O₃ - Fused alumina with very fine-sized grains. Ceramic sheets.

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Y-1

99.7% Al₂O₃ - Fused alumina with very fine-sized grains. Ceramic sheets. Less porous and higher modulus of rupture than Y-1H.

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Mterial Characteristics

• Extremely smooth surface
• Thickness of 1,5-2,0mm
• Porous

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