BLUE LIGHT-EMITTING TRANSPARENT SIALON CERAMICS AND PRODUCTION METHOD THEREOF

To provide blue light-emitting transparent sialon ceramics that are transparent and blue fluorescent, and can increase the productivity while having durability comparable to or higher than the prior art.SOLUTION: Such blue light-emitting transparent sialon ceramics have a main phase of α-sialon havi...

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Hauptverfasser:	AMINAKA KOHEI, TADAMI JUNICHI, TAKAHASHI TAKUMA, YAHAGI TSUKAHO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVES ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DYES LIME, MAGNESIA MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	To provide blue light-emitting transparent sialon ceramics that are transparent and blue fluorescent, and can increase the productivity while having durability comparable to or higher than the prior art.SOLUTION: Such blue light-emitting transparent sialon ceramics have a main phase of α-sialon having general formula Mx(Si,Al)12(N,O)16 (where M is at least one selected from the group consisting of dysprosium, holmium, erbium, thulium, ytterbium and lutetium, and 0.3≤x≤1) in which some M are substituted with Ce, so that a luminescent center ion is at least Ce3+.SELECTED DRAWING: Figure 1 【課題】耐久性を従来と同等以上としながら、生産性を高めることが可能であって、且つ、透明性並びに青色蛍光性を兼備する青色発光透明サイアロンセラミックスを提供する。【解決手段】このような青色発光透明サイアロンセラミックスは、一般式Ｍｘ（Ｓｉ，Ａｌ）１２（Ｎ，Ｏ）１６（但し、Ｍは、ジスプロシウム、ホルミウム、エルビウム、ツリウム、イッテルビウム、ルテチウムからなる群から選択される少なくとも１種、０．３≦ｘ≦１）において、前記Ｍの一部がＣｅに置換されているα－サイアロンを主相とし、発光中心イオンが少なくともＣｅ３＋である。【選択図】図１