Crucible down-going method for growing of lead tungstate (PbWo4) scintillating mega-single crystal

The crucible falling-down method for simultaneously growing 2,4 or 8 pieces of large-size, high-quality PWO crystal includes suchs teps as proportioning 99.9% PbO and WO3 powders, keeping temp at 900-1000 deg.C for 0.5 hr for solid phase reaction, heating to 1200 deg.C to melt them fully while passi...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SHEN BINGFU, LIAO JINGYING, SHAO PEIFA
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR CHEMISTRY CRYSTAL GROWTH 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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