Alumina

Alumina

Alumina（Al₂O₃ ）has high electrical insulation, corrosion resistance against both acids and alkalis, and abrasion resistance. This advanced ceramic is utilized in diverse fields including machine parts and electronic equipment parts.
We produce various grades of alumina ceramics to fulfill the demands of our customers（92 – 99.99% purity of Al₂O₃).

Why Alumina?

・Low dielectric loss in GHz or MHz band.
・Several types are available. Low dielectric constant type(ε), low dielectric loss tangent type and strong type, etc.
・We can produce simple-shaped parts such as plates, but also small and complex-shaped parts. Moreover, we can supply it as filler.

Low Purity Alumina Series

N-92 (92% Alumina)

ゴマ、穀物等用の臼

N-92 contains 92％ of alumina. It is usually used as an insulator.

N-96 (96% Alumina)

100周年記念オリジナルお猪口

N-96 contains 96％ of alumina. It is usually used as a circuit board or electronic parts shaft.

High Purity Alumina Series

N-99 (99.7% Alumina)

耐プラズマ用ドーム　N-99　アルミナセラミックス1

Great performance in the vacuum environment, High resistivity.

N-999 (99.9% Alumina)

99.9％ of alumina without MgO

N-999S (99.9% Alumina)

耐プラズマCVD用ベルジャ　材質N-999S 99.9％ of alumina with MgO

N-9000T (99.99% Alumina)

High reflectivity 99.99％ alumina for the optical products.

Translucent Alumina Series

N-9000NS (99.95% Alumina)

単結晶サファイア代替え用N-9000NSアルミナセラミックス

As N-9000NS is produced from pure fine-grain Alumina, it has a higher intensity than other translucent aluminas.

Black Alumina Series

N-92D (92% Alumina based)

N-92D　アルミナ92％黒色

Alumina 92% that colored by black pigment. After processing, the purity would be around 83%.

N-9B (99% Alumina based)

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99% Alumina colored by black pigment. After processing, the purity of alumina will be 94%.