| Identification | Back Directory | [Name]
Zirconium carbide | [CAS]
12070-14-3 | [Synonyms]
ZRC A
ZRC B
ZRC AX
ZirconiuM carbid
Zirconium carbide
Zirconium(Ⅳ) carbide
zirconiumcarbide(zrc)
zirconium(iv) carbide
ZIRCONIUM CARBIDE: 99.8%
Zirconiumcarbide(99+%-Zr)
Zirconium Carbide,-325 Mesh
Zirconiumcarbidemicronblackpowder
ZIRCONIUM CARBIDE, POWDER, <5 MICRON, 99 %
Zirconiumcarbide,99.5%(metalsbasisexcludingHf),Hf<200ppm
Zirconium carbide (metals basis excluding Hf), Hf< 200ppm
ZRC A ZIRCONIUM CARBIDE GRADE A-A PRODUCT OF H.C. STARCK
ZRC B ZIRCONIUM CARBIDE GRADE B-A PRODUCT OF H.C. STARCK
ZRC AX ZIRCONIUM CARBIDE GRADE AX-A PRODUCT OF H.C. STARCK | [EINECS(EC#)]
235-125-1 | [Molecular Formula]
CZr | [MDL Number]
MFCD00049640 | [MOL File]
12070-14-3.mol | [Molecular Weight]
103.23 |
| Chemical Properties | Back Directory | [Appearance]
Gray, crystalline solid. Mohs
hardness 8+. Insoluble in
water and hydrochloric acid; soluble in oxidizing
acids and attacked by oxidizers. | [Melting point ]
3540°C | [Boiling point ]
5100°C | [density ]
6.73 g/mL at 25 °C(lit.)
| [RTECS ]
ZH7155000 | [form ]
powder
| [color ]
Gray | [Specific Gravity]
6.73 | [Water Solubility ]
Soluble in concentrated sulfuric acid, hydrofluoric acid and nitric acid. Insoluble in water. | [Exposure limits]
ACGIH: TWA 5 mg/m3; STEL 10 mg/m3
NIOSH: IDLH 25 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3 | [InChIKey]
MHMXYYDKIQTOHA-UHFFFAOYSA-N | [Uses]
zirconium carbide (ZrC) and Titanium carbide (TiC) are extremely hard refractory metal compounds. TiC, ZrC, VC and NbC are commercially used in tool bits for cutting tools. ZrC is used extensively as coating of UO2 and ThO2 particles of nuclear fuel. | [EPA Substance Registry System]
Zirconium carbide (ZrC)(12070-14-3) |
| Questions And Answer | Back Directory | [Description]
Zirconium carbide (ZrC) is an extremely hard refractory ceramic material. It is usually processed by sintering. It has the appearance of a gray metallic powder with cubic crystal structure.
It is used as an abrasive, in metal cladding, in cermets, incandescent filaments and cutting tools. Owing to its good high-temperature mechanical properties, excellent electrical and thermal conductivity, high melting point, and strong chemical resistance, it is a potential coating, oxygen-gettering, or inert matrix material for advanced high-temperature nuclear application. Hafnium-free zirconium carbide can be used as refractory coatings in nuclear reactors. Attributing to its low neutron absorption cross-section and weak damage sensitivity under irradiation, it can be used as the coating of uranium dioxide and thorium dioxide particles of nuclear fuel. In particular, ZrC is being considered as a structural and fission product barrier coating material for TRISO (tri-isotropic) coated nuclear fuel used in high temperature reactors (HTR’s), replacing or in addition to the currently used silicon carbide (SiC).
Nanometer zirconium carbide can be used in hard alloy, nano-structured parts and devices for metallurgical, chemical, aerospace, energy, and aviation industry. It can be used in new insulation thermostat textitles, reformed naylon, functional fiber which can absorb and save heat energy. It is used for the surface coating of metal and other materials, for composite materials as the fabrication of metal matrix, ceramic matrix and polymer nanocomposites, as sintering additives and as grain refining agents or nucleating agents.
| [References]
[1] https://en.wikipedia.org/wiki/Zirconium_carbide
[2] Yutai Katoh, Gokul Vasudevamurthy, Takashi Nozawa, Lance L. Snead (2013) Propeties of zirconium carbide for nuclear fuel applications, Journal of Nuclear Materials, 441, 718-742
[3] https://www.nanoparticles-microspheres.com/Products/Zirconium-Carbide-Nanoparticles.html
|
| Hazard Information | Back Directory | [Chemical Properties]
Gray, crystalline solid. Mohs
hardness 8+. Insoluble in
water and hydrochloric acid; soluble in oxidizing
acids and attacked by oxidizers. | [Flammability and Explosibility]
Notclassified |
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