Plasma-Melted and Rapidly-Solidified Powders

Autor:	Richard F. Cheney
Rok vydání:	1983
Předmět:	Quenching Materials science Composite number Alloy Metallurgy chemistry.chemical_element Plasma Substrate (electronics) engineering.material Tungsten Microbiology chemistry Spray drying Melting point engineering
Zdroj:	MRS Proceedings. 30
ISSN:	1946-4274 0272-9172
DOI:	10.1557/proc-30-163
Popis:	A novel process is described for making rapidly solidified powders. In its simplest form, powders are melted in a high-temperature plasma and the resulting high-velocity spray is quenched into a fluid medium. Rapid cooling rates are achieved by free fall in inert gases, by quenching into liquid argon or nitrogen, or by impacting against a chilled, moving substrate. Any composition can be processed as long as it or its constituents are available in powder form. When necessary, alloy or composite components are agglomerated to 15–45μm diameter prior to plasma synthesis. The agglomeration is typically achieved by spray drying. Powders with melting points up to and including tungsten have been melted.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f968c318830e15731e7881885c7a52e2 https://doi.org/10.1557/proc-30-163 Zobrazit plný text záznamu Full text from SpringerLink