Asahi Glass Company, Limited

Pacific Rundum Company Ltd.

Takahiro Nakayama

Nobuo Kageyama

Osamu Sakamoto

Atsuyoshi Takenaka

Yoichi Kamisuki

Takuo Osuka

Takashi Chikaso

A highly corrosion-resistant silicon carbide product consisting of a sintered body having a content of .alpha.-form silicon carbide of at least 90 wt %, wherein the content of iron is at most 1 ppm, the content of aluminum is at most 5 ppm, and the content of calcium is at most 3 ppm.

Highly corrosion-resistant silicon carbide product

A method of making a perforated silicon carbide product in a shorter time and with less labor work to achieve a lower cost and high yield. Openings 13a, 13b are previously formed in a mold 11, and inserts 14 are inserted into the openings to project toward the inside of the mold. A slurry 15 composed of a mixture of a silicon carbide powder, an organic binder and water is put in the mold to conduct a slip casting molding method whereby a molded green product with perforation 16 is obtained.

Method of making a silicon carbide product

A near infrared screening filter glass consisting essentially of from 35 to 60 wt. % of P.sub.2 O.sub.5, from 10 to 30 wt. % of Al.sub.2 O.sub.3, from 1.5 to 15 wt. % of SiO.sub.2, from 3 to 15 wt. % of B.sub.2 O.sub.3 and from 0.1 to 10 wt. % of CuO.

Near infrared screening filter glass

Growing community of inventors

Takasago, Japan

Takahiro Nakayama