SINTERED BODY

To provide a sintered body that has improved impact resistance by absorbing an impact exceeding the fracture resistance of the sintered body before brittle fracture occurs.SOLUTION: A sintered body includes zirconia containing a stabilizing element, and a plastic deformation region. The stabilizing...

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Bibliographische Detailangaben
Hauptverfasser:	FUKIAGE TAKU, NISHIYAMA SATOSHI, KAWAMURA KENTA, NAGAYAMA HITOSHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	To provide a sintered body that has improved impact resistance by absorbing an impact exceeding the fracture resistance of the sintered body before brittle fracture occurs.SOLUTION: A sintered body includes zirconia containing a stabilizing element, and a plastic deformation region. The stabilizing element includes at least one rare-earth element other than yttrium, and the stabilizing element content is 1.5 mol% or more and less than 3.0 mol%.SELECTED DRAWING: Figure 7 【課題】焼結体の破壊抵抗を超える衝撃に対し、脆性破壊の発生に先立ち、衝撃吸収を発生させることによって、耐衝撃性が改善された焼結体を提供する。【解決手段】安定化元素を含有するジルコニアを含み、塑性変形する領域を有する焼結体であって、該安定化元素がイットリウム以外の希土類元素を少なくとも１種含み、なおかつ、該安定化元素の含有量が１．５ｍｏｌ％以上３．０ｍｏｌ％未満であることを特徴とする焼結体。【選択図】図７