Characteristics of Hot Spot Oxygen Sensor Using GdBa2Cu3O7-δ Ceramic Rod with Gd2BaCuO5 Core

Shingo Fujihara; Yuichiro  Kuroki; Tomoichiro Okamoto; Masasuke Takata

doi:10.4028/www.scientific.net/KEM.445.213

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Characteristics of Hot Spot Oxygen Sensor Using GdBa₂Cu₃O_7-δ Ceramic Rod with Gd₂BaCuO₅ Core

Abstract:

A ceramic rod of GdBa2Cu3O7-δ with Gd2BaCuO5 core was prepared using a dip coater and sintered at 950oC. A hot spot appeared when a certain voltage was applied to the rod. Oxygen sensing characteristics of the rod were investigated. It was found that the response time of the oxygen sensor using the rod with the core was shorter than that without the core, because the length of the oxygen diffusion in GdBa2Cu3O7-δ part in the rod with the core was shorter than that without the core.