NIOBIUM BORIDE
- Product Name
- NIOBIUM BORIDE
- CAS No.
- 12045-19-1
- Chemical Name
- NIOBIUM BORIDE
- Synonyms
- NIOBIUM BORIDE;COLUMBIUM BORIDE;borylidyneniobium;NIOBIUM MONOBORIDE;niobiumboride(nbb);boranylidyneniobium;COLUMBIUM BORIDE CBB;COLUMBIUM MONOBORIDE
- CBNumber
- CB0730774
- Molecular Formula
- BNb
- Formula Weight
- 103.72
- MOL File
- 12045-19-1.mol
NIOBIUM BORIDE Property
- Melting point:
- 2270°C
- Density
- 7.500
- form
- gray orthorhombic crystals
- color
- gray orthorhombic crystals, crystalline
- Resistivity
- 40–64.5 (ρ/μΩ.cm)
- Crystal Structure
- Orthorhombic
- CAS DataBase Reference
- 12045-19-1
- EPA Substance Registry System
- Niobium boride (NbB) (12045-19-1)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
NIOBIUM BORIDE Chemical Properties,Usage,Production
Chemical Properties
gray powder(s); ortho-rhomb, a=0.3298 nm, b=0.872 nm, c=0.3166nm; resistivity 64.5μοhm· cm at 25°C; refractory material; commonly prepared by hot-pressing boron with niobium or niobium hydride; used as sputtering target with 99.5% purity to produce wear-resistant and semiconductor films, and can provide neutron absorbing layers on nuclear fuel pellets [KIR78] [KIR81] [CER91] [ALF93]
Physical properties
Wear-resistant ; Major uses: semiconductive films, neutron-absorbing layer on nuclear fuel pellets
Synthesis
1, raw material preparation
The first step: niobium oxide powder with a particle size of 0.1μm, 3μm boron carbide powder and 3μm B2O3 powder were mixed uniformly in the ratio of 70:14:3 to obtain raw material powder 1.
Step 2: Mix the above raw material powder 1 with phenolic resin in the ratio of 5:0.5 by weight in a mixing mill, cure at a temperature of 80C, and then pulverize in a pulverizer to make raw material powder 2 with an average particle size of 10μm.
Step 3: Mix the above raw material powder 2 with phenolic resin in the proportion of 5:1 by weight in the mixing mill, curing at a temperature of 50, and then pulverized in the pulverizer to make the raw material powder 3 with an average particle size of 20μm.
Step 4: Mix the above raw material powder 3 with phenolic resin in the proportion of 5:2 by weight in the mixing mill, curing at a temperature of 40 , and then pulverized in the pulverizer to make an average particle size of 50μm raw material powder 4.
2. Synthesis of niobium boride powder
The above raw material powder 4 was briquetted under the pressure of 0.5Mpa, and then fired under argon atmosphere at the temperature of 1350C for 6 hours to produce niobium boride block.
3. Decarburization
The above niobium boride block is decarburized by holding it in oxidizing atmosphere at a temperature of 350C for 12 hours, and then crushed after cooling to produce niobium boride powder.
The purity of the raw materials used were 99.99% pure.
NIOBIUM BORIDE Preparation Products And Raw materials
Raw materials
Preparation Products
NIOBIUM BORIDE Suppliers
- Tel
- 821-50328103-801 18930552037
- Fax
- 86-21-50328109
- 3bsc@sina.com
- Country
- China
- ProdList
- 15838
- Advantage
- 69
- Tel
- 18620099427
- Fax
- +86-20-62619665
- amy@howeipharm.com
- Country
- China
- ProdList
- 6687
- Advantage
- 55
- Tel
- +1-5166625404;
- Fax
- 1-516-927-0118
- Info@alfa-chemistry.com
- Country
- United States
- ProdList
- 20405
- Advantage
- 58
- Tel
- +8615838112936
- sale03@alfachem.cn
- Country
- China
- ProdList
- 12830
- Advantage
- 58
- Tel
- +86-0551-65418671 +8618949823763
- Fax
- 0551-65418697
- sales@tnjchem.com
- Country
- China
- ProdList
- 34563
- Advantage
- 58
- Tel
- +86-029-89586680 +86-18192503167
- Fax
- +86-29-88380327
- 1026@dideu.com
- Country
- China
- ProdList
- 7099
- Advantage
- 58
- Tel
- +86-023-6139-8061 +86-86-13650506873
- sales@chemdad.com
- Country
- China
- ProdList
- 39927
- Advantage
- 58
- Tel
- 400-8200386 13456373028
- Fax
- 0573-84615678
- 2533928531@qq.com
- Country
- China
- ProdList
- 320
- Advantage
- 58
- Tel
- 0564-3636590 15956460423
- 623125725@qq.com
- Country
- China
- ProdList
- 187
- Advantage
- 58
- Tel
- 021-64110338 18939791287
- 2953588414@qq.com
- Country
- China
- ProdList
- 181
- Advantage
- 58