Improved dispersion hardened noble metal alloys

• Main Author: WEGNER MARCUS
• Format: Patent
• Language: Chinese; English
• Published: 18.03.2022
• Subjects: AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; ALLOYS; APPARATUS THEREFOR; CHEMISTRY; CRYSTAL GROWTH; FERROUS OR NON-FERROUS ALLOYS; GLASS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; 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; TREATMENT OF ALLOYS OR NON-FERROUS METALS; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL

The present invention relates to a dispersion-hardened platinum composition comprising up to 29.95% by weight of one of the metals rhodium, gold, iridium and palladium, 0.05% to 1% by weight of an oxide of non-noble metals zirconium, yttrium and scandium, and as the balance of at least 70% by weight of platinum, including impurities, wherein 7.0 mol% to 11.0 mol% of the non-noble metal oxides are yttrium oxide, 0.1 mol% to 5.0 mol% of the oxides are scandium oxide, and the remaining oxides are zirconium oxide, including oxide impurities. The invention also relates to a crucible for crystal growth, a semi-finished product, a tool, a tube, an agitator, a glass fiber nozzle or an assembly for producing or processing glass, made from such a platinum composition, and to a method for producing a platinum composition. 本发明涉及一种分散体硬化的铂组合物，所述铂组合物包含至多29.95重量％的金属铑、金、铱和钯中的一种，0.05重量％至1重量％的非贵金属锆、钇和钪的氧化物，和作为余量的至少70重量％的铂，包括杂质，其中7.0摩尔％至11.0摩尔％的非贵金属氧化物为氧化钇，0.1摩尔％至5.0摩尔％的氧化物为氧化钪，和其余氧化物为氧化锆，包括氧化物杂质。本发明还涉及用于晶体生长的坩埚、半成品、工具、管、搅拌器、玻璃纤