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Zirconium Boride

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Company Name: henan kanbei chemical co.,ltd
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Products Intro: Product Name:Zirconium Boride
Purity:99% Package:1kg
Tel: +86-85511178 +86-85511178
Products Intro: Product Name:Zirconium boride
Purity:0.95&0.99 Package:0.1KG;1KG;1000KG Remarks:Factory Supply
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: +86-0371-55170693 +86-19937530512
Products Intro: Product Name:12045-64-6
Purity:99% Package:25KG;5KG;1KG
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Products Intro: Product Name:Zirconium Boride
Purity:85.0-99.8% Package:1KG;1USD
Company Name: Chongqing Chemdad Co., Ltd
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Products Intro: Product Name:Zirconium Boride
Purity:0.99 Package:5KG;1KG,25KG

Zirconium Boride manufacturers

  • Zirconiumboride
  • Zirconiumboride pictures
  • $100.00 / 25kg
  • 2023-06-03
  • CAS:12045-64-6
  • Min. Order: 25kg
  • Purity: 99%
  • Supply Ability: 500t/month
  • Zirconium Boride
  • Zirconium Boride pictures
  • $0.00 / 1kg
  • 2022-09-23
  • CAS:12045-64-6
  • Min. Order: 1kg
  • Purity: 99%
  • Supply Ability: 1000kg
  • Zirconium Diboride
  • Zirconium Diboride pictures
  • $0.00 / 1kg
  • 2022-09-21
  • CAS:12045-64-6
  • Min. Order: 1kg
  • Purity: 99%
  • Supply Ability: 1000kg

Related articles

Zirconium Boride Basic information
Product Name:Zirconium Boride
Synonyms:zirconium boride (zrb2) zirconium boride Zirconium boride(ZrB2);ZIRCONIUM DIBORIDE: GRADE A, A PRODUCT OF H.C. STARCK;ZIRCONIUM DIBORIDE, GRADE B, A PRODUCT OF H.C. STARCK;ZIRCONIUM BORIDE: 99.5%;Zirconium boride, 99.5% (metals basis excluding Hf);ZIRCONIUM BORIDE;Einecs 234-963-5;Zirconium diboride (zrb2)
Product Categories:
Mol File:12045-64-6.mol
Zirconium Boride Structure
Zirconium Boride Chemical Properties
Melting point 3100-3500°C
density 6,1 g/cm3
RTECS ZH7150000
form powder
color gray refractory solid; hexagonal, hexane
Resistivity9.2 (ρ/μΩ.cm)
Water Solubility It is insoluble in water.
Crystal StructureHexagonal
Exposure limitsACGIH: TWA 5 mg/m3; STEL 10 mg/m3
NIOSH: IDLH 25 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3
EPA Substance Registry SystemZirconium boride (ZrB2) (12045-64-6)
Safety Information
Hazard Codes Xn
Risk Statements 20/21/22
Safety Statements 36
WGK Germany 3
HazardClass 4.1
PackingGroup III
MSDS Information
SigmaAldrich English
ALFA English
Zirconium Boride Usage And Synthesis
DescriptionZirconium diboride (ZrB2) is a highly covalent refractory ceramic material with a hexagonal crystal structure. ZrB2 is known as a UHTC with a melting point of 3246C. This together with its relatively low density of B6.09 g/cm3 (measured density may be higher due to hafnium impurities) and good high-temperature strength makes it a contender for high-temperature aerospace applications, for example, hypersonic flight or rocket propulsion systems. It is an unusual ceramic with relatively high thermal and electrical conductivities.
Chemical PropertiesZirconium boride, also known as zirconium diboride, a gray metallic crystals or powders. Mohs hardness 8, electrical resistivity 9.2 micro-ohm-cm (20°C), excellent thermal shock resistance, poor oxidation resistance above 1100°C. It was attacked very little by cold HCl, more rapidly by HNO3, and is dissolved by aqua regia. It reacts with H2SO4 and is readily attacked by fused alkali hydroxides, carbonates, and disulfides.
Zirconium diboride
Zirconium diboride (ZrB2) is a transition metal boride with a hexagonal crystal structure and P6/mmm symmetry. ZrB2 has a combination of metallic, ionic, and covalent bonds. Due to its strong covalent bonds, ZrB2 has a high melting temperature of 3250°C. This melting temperature classifies ZrB2 as an ultra-high temperature ceramic (UHTC). UHTCs have been proposed for use in many different applications due to their high melting temperatures (>3000°C), as well as their high strength and chemical inertness.
Physical propertiesGray metallic crystals, excellent thermal shock resistance, greatest oxidation inertness of all refractory hardmetals. Hot-pressed crucible for handling molten metals such as Zn, Mg, Fe, Cu, Zn, Cd, Sn, Pb, Rb, Bi, Cr, brass, carbon steel, cast irons, and molten cryolithe, yttria, zirconia, and alumina. Readily corroded by liquid metals such as Si, Cr, Mn, Co, Ni, Nb, Mo, Ta and attacked by molten salts such as Na O, 2 alkali carbonates, and NaOH. Severe oxidation in air occurs above 1100–1400°C. Stable above 2000°C in inert or reducing atmosphere.
UsesZirconium boride is use to improve resistance in zirconia-based, carbon-bonded refractories in contact with ferrous melts. Used in nuclear applications, aerospace refractory, in cutting tools and to protect thermocouple tubes. It also used in use of its relatively high conductivity, especially for a ceramic.
ApplicationZirconium diboride (ZrB2) is an ultra high termparature ceramic powder. With good high temperature strength, it is used in the aerospace industry for hypersonic flight or rocket propulsion. ZrB2 is a kind of senior engineering material broadly used in various fields. Refractory for aircraft and rocket applications, thermocouple protection tubes, high temperature electrical conductor, cutting tool component, coating tantalum, cathode in high-temperature electrochemical systems.
Industrial usesZirconium boride is a microcrystalline graypowder of the composition ZrB2. When compressedand sintered to a specific gravity ofabout 5.3, it has a Rockwell A hardness of 90,a melting point of 2980°C, and a tensilestrength of 241 to 276 MPa. It is resistant tonitric and hydrochloric acids, to molten aluminumand silicon, and to oxidation. At 1204°Cit has a transverse rupture strength of 379 MPa.It is used for crucibles and for rocket nozzles.
SynthesisZirconium boride powder is mainly prepared by carbothermic reduction of ZrO2 powder and carbon black or graphite powder. The reaction equation is:
Zirconium boride obtained from zirconia and boron oxide by magnesiothermic MASHS.
Zirconium Boride Preparation Products And Raw materials
Raw materialsZirconium-->Boron carbide
Tag:Zirconium Boride(12045-64-6) Related Product Information
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