METHOD FOR FORMING APATITE SINGLE CRYSTAL DEFICIENT IN CALCIUM

PURPOSE:To form larger apatite single crystal deficient in calcium than a conventional one in a short time. CONSTITUTION:Apatite single crystal deficient in calcium is formed by using an electrolyte containing phosphate ion, calcium ion, fluorine ion and an alkali metal salt or ammonium salt as an e...

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Bibliographische Detailangaben
1. Verfasser:	KADOMA HIDEKI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR CHEMISTRY CRYSTAL GROWTH ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS METALLURGY PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
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Beschreibung
Zusammenfassung:	PURPOSE:To form larger apatite single crystal deficient in calcium than a conventional one in a short time. CONSTITUTION:Apatite single crystal deficient in calcium is formed by using an electrolyte containing phosphate ion, calcium ion, fluorine ion and an alkali metal salt or ammonium salt as an electrical conductivity imparting agent by electrolytic operation. Conditions such as concentration of electrolyte, electrolytic temperature and electrolytic current are properly decided and trolysis is preferably operated at 60 deg.C