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- Tantalum_hafnium_carbide abstract "Tantalum hafnium carbide is a refractory chemical compound with a general formula TaxHfy-xCy, which can be considered as a solid solution of tantalum carbide and hafnium carbide. Individually, these two carbides have the highest melting points among the binary compounds, 4,256 K (3,983 °C; 7,201 °F) and 4,201 K (3,928 °C; 7,102 °F), respectively, and their \"alloy\" with a composition Ta4HfC5 is believed to have a melting point of 4,263 K (3,990 °C; 7,214 °F).Very few measurements of melting point in tantalum hafnium carbide have been reported, because of the obvious experimental difficulties at extreme temperatures. A 1965 study of the TaC-HfC solid solutions at temperatures 2225–2275 °C found a minimum in the vaporization rate and thus maximum in the thermal stability for Ta4HfC5. This rate was comparable to that of tungsten and was weakly dependent on the initial density of the samples, which were sintered from TaC-HfC powder mixtures, also at 2225–2275 °C. In a separate study, Ta4HfC5 was found to have the minimum oxidation rate among the TaC-HfC solid solutions. Ta4HfC5 was manufactured by Goodfellow company as a 45 µm powder at a price of $9,540/kg (99.0% purity).Individual tantalum and hafnium carbides have a rocksalt cubic lattice structure. They are usually carbon deficient and have nominal formulas TaCx and HfCx, with x = 0.7–1.0 for Ta and x = 0.56–1.0 for Hf. The same structure is also observed for at least some of their solid solutions. The density calculated from X-ray diffraction data is 13.6 g/cm3 for Ta0.5Hf0.5C. Hexagonal NiAs-type structure (space group P63/mmc, No. 194, Pearson symbol hP4) with a density of 14.76 g/cm3 was reported for Ta0.9Hf0.1C0.5.In 2015 atomistic simulations predicted that a Hf-C-N material could have a melting point exceeding Ta4Hf1C5 by 200K. This has yet to be verified by experimental evidence.".
- Tantalum_hafnium_carbide wikiPageID "9432014".
- Tantalum_hafnium_carbide wikiPageLength "5306".
- Tantalum_hafnium_carbide wikiPageOutDegree "25".
- Tantalum_hafnium_carbide wikiPageRevisionID "707488194".
- Tantalum_hafnium_carbide wikiPageWikiLink Binary_compound.
- Tantalum_hafnium_carbide wikiPageWikiLink Carbide.
- Tantalum_hafnium_carbide wikiPageWikiLink Carbon.
- Tantalum_hafnium_carbide wikiPageWikiLink Category:Carbides.
- Tantalum_hafnium_carbide wikiPageWikiLink Category:Hafnium_compounds.
- Tantalum_hafnium_carbide wikiPageWikiLink Category:Refractory_materials.
- Tantalum_hafnium_carbide wikiPageWikiLink Category:Tantalum_compounds.
- Tantalum_hafnium_carbide wikiPageWikiLink Chemical_compound.
- Tantalum_hafnium_carbide wikiPageWikiLink Cubic_crystal_system.
- Tantalum_hafnium_carbide wikiPageWikiLink Hafnium.
- Tantalum_hafnium_carbide wikiPageWikiLink Hafnium(IV)_carbide.
- Tantalum_hafnium_carbide wikiPageWikiLink Melting_point.
- Tantalum_hafnium_carbide wikiPageWikiLink Micrometre.
- Tantalum_hafnium_carbide wikiPageWikiLink Nickeline.
- Tantalum_hafnium_carbide wikiPageWikiLink Pearson_symbol.
- Tantalum_hafnium_carbide wikiPageWikiLink Refractory.
- Tantalum_hafnium_carbide wikiPageWikiLink Sintering.
- Tantalum_hafnium_carbide wikiPageWikiLink Space_group.
- Tantalum_hafnium_carbide wikiPageWikiLink Tantalum.
- Tantalum_hafnium_carbide wikiPageWikiLink Tantalum_carbide.
- Tantalum_hafnium_carbide wikiPageWikiLink Tungsten.
- Tantalum_hafnium_carbide wikiPageWikiLink X-ray_crystallography.
- Tantalum_hafnium_carbide wikiPageWikiLinkText "Tantalum hafnium carbide".
- Tantalum_hafnium_carbide wikiPageWikiLinkText "tantalum hafnium carbide".
- Tantalum_hafnium_carbide name "Tantalum hafnium carbide".
- Tantalum_hafnium_carbide verifiedrevid "448727871".
- Tantalum_hafnium_carbide watchedfields "changed".
- Tantalum_hafnium_carbide wikiPageUsesTemplate Template:Cascite.
- Tantalum_hafnium_carbide wikiPageUsesTemplate Template:Chembox.
- Tantalum_hafnium_carbide wikiPageUsesTemplate Template:Chembox_Identifiers.
- Tantalum_hafnium_carbide wikiPageUsesTemplate Template:Chembox_Properties.
- Tantalum_hafnium_carbide wikiPageUsesTemplate Template:Convert.
- Tantalum_hafnium_carbide wikiPageUsesTemplate Template:Reflist.
- Tantalum_hafnium_carbide wikiPageUsesTemplate Template:Use_dmy_dates.
- Tantalum_hafnium_carbide subject Category:Carbides.
- Tantalum_hafnium_carbide subject Category:Hafnium_compounds.
- Tantalum_hafnium_carbide subject Category:Refractory_materials.
- Tantalum_hafnium_carbide subject Category:Tantalum_compounds.
- Tantalum_hafnium_carbide hypernym Compound.
- Tantalum_hafnium_carbide type ChemicalCompound.
- Tantalum_hafnium_carbide type ChemicalSubstance.
- Tantalum_hafnium_carbide type Carbide.
- Tantalum_hafnium_carbide type Chemical.
- Tantalum_hafnium_carbide type ChemicalObject.
- Tantalum_hafnium_carbide type Thing.
- Tantalum_hafnium_carbide type Q11173.
- Tantalum_hafnium_carbide comment "Tantalum hafnium carbide is a refractory chemical compound with a general formula TaxHfy-xCy, which can be considered as a solid solution of tantalum carbide and hafnium carbide.".
- Tantalum_hafnium_carbide label "Tantalum hafnium carbide".
- Tantalum_hafnium_carbide sameAs Q424268.
- Tantalum_hafnium_carbide sameAs Карбід_тантала-гафнію.
- Tantalum_hafnium_carbide sameAs Tantalhafniumcarbid.
- Tantalum_hafnium_carbide sameAs تانتال_هافنیوم_کربید.
- Tantalum_hafnium_carbide sameAs Carbure_de_tantale-hafnium.
- Tantalum_hafnium_carbide sameAs Tantál-hafnium-karbid.
- Tantalum_hafnium_carbide sameAs 炭化タンタルハフニウム.
- Tantalum_hafnium_carbide sameAs m.0288qvg.
- Tantalum_hafnium_carbide sameAs Карбид_тантала-гафния.
- Tantalum_hafnium_carbide sameAs Tantalhafniumkarbid.
- Tantalum_hafnium_carbide sameAs Q424268.
- Tantalum_hafnium_carbide sameAs 碳化钽铪.
- Tantalum_hafnium_carbide wasDerivedFrom Tantalum_hafnium_carbide?oldid=707488194.
- Tantalum_hafnium_carbide isPrimaryTopicOf Tantalum_hafnium_carbide.
- Tantalum_hafnium_carbide name "Tantalum hafnium carbide".