Osaka Sanso Kogyo Ltd.

Other

Tosoh Corporation

Nkk Corporation

Minoru Sasabe

Toshio Nagatsuka

Yoshihiko Kawai

Yoshiteru Kikuchi

Toshio Takaoka

Yasunobu Yoshida

Hiroshi Miyake

Masao Imamura

Hiromi Seno

Chikayashi Furuta

Nobuo Hamada

Shinya Andoh

A probe having the inventive composition, it is possible to measure the activity of the solute carbon which could not be measured by the prior art because there did not exist solid oxide or solid composite oxide which were stable at high temperature. The probe comprises a solid electrolyte having a mixed subelectrode provided on its surface, and a reference electrode for providing a predetermined oxygen potential is disclosed. The mixed sub-electrode coating on the solid electrolyte includes a mixture of a carbide MC and of an oxide MO of the element M other than carbon of which the carbide is constituted.

Probe using a mixed sub-electrode for measuring the activity of carbon

A chromium additive of the formula: Cr.sub.x C.sub.y O.sub.z where 0.04.ltoreq.y.ltoreq.0.35, and 0.03.ltoreq.z.ltoreq.0.30 for x=1, said additive having an X ray diffraction peak at d=3.32 .ANG. (2.theta.=26.8.degree.).

Chromium additive and method for producing chromium alloy using the same

A probe for measuring the concentration of an impurity in molten iron is disclosed. The probe comprises three sensors. The first sensor measures the activity of the impurity element directly. The second sensor measures the activity of free oxygen. The third sensor measures carbon content. These values are used are used to give a compensated measure of the impurity element.

Composite probe for measuring the concentration of an impurity element

Growing community of inventors

Chiba, Japan

Minoru Sasabe