SOLID ELECTROLYTE AND GAS SENSOR

To provide a solid electrolyte excellent in thermal shock resistance, and a gas sensor.SOLUTION: The present invention provides a solid electrolyte 1 composed of stabilized or partial stabilized zirconia and a gas sensor provided with the solid electrolyte 1. A change rate of a crystallite diameter...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YOSHIDA MITSUHIRO, SUZUKI SOJI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CABLES CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CONDUCTORS ELECTRICITY INSULATORS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LIME, MAGNESIA MEASURING METALLURGY PHYSICS REFRACTORIES SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SLAG TESTING TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	To provide a solid electrolyte excellent in thermal shock resistance, and a gas sensor.SOLUTION: The present invention provides a solid electrolyte 1 composed of stabilized or partial stabilized zirconia and a gas sensor provided with the solid electrolyte 1. A change rate of a crystallite diameter of at least one of a cubic crystal phase 21 and a tetragonal phase 23 in crystal grains 2 constituting the solid electrolyte 1 is equal to or less than 10% before and after heating the solid electrolyte 1 from room temperature to 1200°C. The solid electrolyte is preferably composed of the partial stabilized zirconia.SELECTED DRAWING: Figure 1 【課題】耐熱衝撃性に優れた固体電解質及びガスセンサを提供する。【解決手段】安定化又は部分安定化ジルコニアからなる固体電解質１および固体電解質１を備えるガスセンサである。固体電解質１を室温から１２００℃へ加熱した前後における、固体電解質１を構成する結晶粒子２における立方晶相２１及び正方晶相２３の少なくとも一方の結晶子径の変化率が１０％以下である。固体電解質は、部分安定化ジルコニアからなることが好ましい。【選択図】図１