hafnium


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Related to hafnium: Hafnium carbide

haf·ni·um

 (hăf′nē-əm)
n. Symbol Hf
A brilliant, silvery, metallic element separated from ores of zirconium and used in nuclear reactor control rods, as a getter for oxygen and nitrogen, and in tungsten filament alloys. Atomic number 72; atomic weight 178.49; melting point 2,233°C; boiling point 4,603°C; specific gravity 13.31; valence 4. See Periodic Table.

[After Hafnia, Medieval Latin name for Copenhagen, Denmark.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

hafnium

(ˈhæfnɪəm)
n
(Elements & Compounds) a bright metallic element found in zirconium ores: used in tungsten filaments and as a neutron absorber in nuclear reactors. Symbol: Hf; atomic no: 72; atomic wt: 178.49; valency: 4; relative density: 13.31; melting pt: 2231±20°C; boiling pt: 4603°C
[C20: New Latin, named after Hafnia, Latin name of Copenhagen + -ium]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

haf•ni•um

(ˈhæf ni əm, ˈhɑf-)

n.
a toxic metallic element found in most zirconium minerals. Symbol: Hf; at. wt.: 178.49; at. no.: 72; sp. gr.: 12.1.
[1923; < New Latin Hafn(ia) Copenhagen + -ium2]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

haf·ni·um

(hăf′nē-əm)
Symbol Hf A bright, silvery metallic element that occurs in zirconium ores. Because hafnium absorbs neutrons better than any other metal and is resistant to corrosion, it is used to control nuclear reactions. Atomic number 72. See Periodic Table.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hafnium - a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium mineralshafnium - a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
hafnium
hafnium
hafnio
hafnium
hafnium
hafnium
hafnij
hafnium
hafnín
ハフニウム
hafnium
hafnis
hafnium
hafn
háfnio
hafniu
hafnium
hafnij
hafnium
hafniyum

hafnium

[ˈhæfnɪəm] Nhafnio m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

hafnium

n (Chem) → Hafnium nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in periodicals archive ?
The latest report on the global Hafnium market suggests a positive growth rate in the coming years.
Qureshi, Simultaneous Determination of Hafnium and Zirconium in Low Grade Uranium Ores using INAA J.
Ban, "In-pile experiment of a new hafnium aluminide composite material to enable fast neutron testing in the advanced test reactor (INL/CON-10-17879)," in Proceedings of the ICAPP '10, San Diego, Calif, USA, 2010.
The MC-former elements titanium, tantalum, niobium, hafnium, and zirconium were thus selected for this work.
The coatings in the form of single layer of hafnium nitride (HfN) have been developed for use in the electronic industry, which explains why there is few literature concerning the mechanical and tribological properties.
It depends on precursors containing highly purified, rare metals such as hafnium, iridium or zirconium, very little of which actually makes their way into the finished product.
It was observed that (Aluminum, Arsenic, Barium, Bromine, Calcium, Cerium, Cobalt, Chromium, Cesium, Copper, Iron, Gallium, Hafnium, Lanthanum, Manganese, Molybdenum, Niobium, Neodymium, Nickel, Lead, Rubidium, Antimony, Scandium, Selenium, Silicon, Tin, Strontium, Samarium, Tantalum, Titanium, Uranium, Vanadium, Tungsten, Ytterbium, Zink and Zirconium) elements were present in all the coal samples under investigation.
Structural, optical and photocatalytic properties of hafnium doped zinc oxide nanophotocatalyst.
Hafnium is a metal included in group IV the in the periodic table, jointly with titanium and zirconium and is used widely in biological applications.