Molybdenum Powder

Product	Molybdenum  Powder
CAS No.	7439-98-7
Appearance	Dark Gray or Black Powder
Purity	≥99%,  ≥99.9%,  ≥95%(Other purities are also available)
APS	1-5 µM, 10-53 µM  (Can be customized),  Ask for other available size range.
Ingredient	Mo
Density	10.2g/cm3
Molecular Weight	94.95g/mol
Product Codes	NCZ-DCY-331/25

Molybdenum Description:

Molybdenum Powder is one of the numerous advanced ceramic materials manufactured by Nanochemazone. Nanochemazone produces too many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information are available. Please request a quote above for more information on lead time and pricing.

Molybdenum Powder Related Information :

Storage Conditions: Airtight sealed, avoid light and keep dry at room temperature. Please contact us for customization and price inquiry Email: [email protected] Note: We supply different size ranges of Nano and micron as per the client’s requirements and also accept customization in various parameters. Molybdenum Powder Molybdenum powder is a refractory metal powder made from molybdenum metal. It offers high temperature strength, corrosion resistance, thermal conductivity, and lubricity. Overview of Molybdenum Powder Molybdenum is a silvery-white refractory transition metal with very high melting point, excellent corrosion resistance, and good thermal/electrical conductivity. In powder form, it exhibits high strength at elevated temperatures along with stability in harsh environments. Key properties of molybdenum powder include: High temperature strength and creep resistance Excellent corrosion resistance Good thermal and electrical conductivity Low thermal expansion coefficient High hardness and wear resistance Good lubricity in sulfide atmospheres Available in various particle size distributions Molybdenum powder is used where its heat resistance, corrosion resistance, conductivity, and lubricity can be utilized. Major applications include alloying, electronics, coatings, welding, and specialty metals fabrication. Composition of Molybdenum Powder Molybdenum powder has the following typical composition:

Element	Purity
Molybdenum (Mo)	99% min
Oxygen (O)	0.01-0.5%
Carbon (C)	0.01-0.1%
Iron (Fe)	0.2-2%
Copper (Cu)	0.1-0.5%
Silicon (Si)	0.05-1%
Tungsten (W)	0.1-1%
Sulfur (S)	0.01-0.1%

High purity grades contain over 99% molybdenum with low impurity levels. Commercial powders have higher permissible impurities. Properties of Molybdenum Powder Molybdenum powder exhibits the following properties:

Property	Value
Density	10.22 g/cm3
Melting Point	2623°C
Thermal Conductivity	138 W/m∙K
Electrical Resistivity	5.5 μΩ∙cm
Young’s Modulus	324 GPa
Poisson’s Ratio	0.31
Tensile Strength	350 MPa
Yield Strength	220 MPa
Elongation	20%
Vickers Hardness	200 HV

Molybdenum offers very high melting point, strength at elevated temperatures, good thermal/electrical conductivity, and low thermal expansion. Production Methods for Molybdenum Powder Molybdenum powder can be produced by methods like: Hydrogen Reduction – Molybdenum trioxide reduced with hydrogen gas to produce molybdenum powder. Thermal Decomposition – Heating molybdenum compounds like ammonium molybdate to form molybdenum oxide followed by hydrogen reduction. Electrolytic Production – Aqueous electrowinning from acidic molybdate solutions produces molybdenum powder deposit. Calciothermic Reduction – Reduction of molybdenum trioxide using calcium. Hydrogen reduction is a common industrial method. The powder morphology, size and purity can be controlled. Applications of Molybdenum Powder Molybdenum powder has the following major applications: Alloying Addition – Added to stainless steels, nickel alloys, tool steels to enhance properties. Metal Coatings & Spraying – Thermal spray coatings, plating processes use molybdenum for wear/corrosion resistance. Electronics & Contacts – Used in circuitry, vacuum tubes, cathode ray tubes and electrical contacts. Welding – As filler material for stainless, high-nickel and refractory metal welding. Lubricants – Added to greases and oils to provide lubrication in high temperature sulfide environments. Pyrotechnics – Combined with other powders for pyrotechnic delay compositions requiring controlled burn rates. Specifications of Molybdenum Powder Molybdenum powder is available under various specifications: Purity Grades – From commercial purity to 99.999% ultra high purity grades. Particle Sizes – Ranging from 1 micron to 150 microns for different applications. Morphology – Irregular, spherical and nodular powder shapes are available. Surface Area – Low to high surface area powder grades. Oxygen Content – High purity, low oxygen powders for specialty applications. Storage and Handling of Molybdenum Powder Molybdenum powder requires controlled storage and handling: Prevent exposure to air and moisture to minimize oxidation. Avoid dust accumulation and ignition hazards from fine powders. Use appropriate ventilation and respiratory protection when handling. Follow precautions in Safety Data Sheet from supplier. Store sealed containers in a cool, dry place away from incompatibles. Proper grounding, inert gas blanketing, PPE should be used when handling molybdenum powder. Inspection and Testing of Molybdenum Powder Typical inspections and tests carried out on molybdenum powder: Chemical Analysis – ICP and XRF techniques used to verify composition meets specifications. Particle Size – Laser diffraction analysis as per ASTM B822 standard. Morphology – SEM imaging used to determine particle shape and surface area. Specific Surface Area – BET gas absorption method used. Impurity Testing – ICP-MS used to quantify levels of oxygen, iron, copper, tungsten and other impurities. Powder Flow – Tested as per ASTM B213 standard using Hall flowmeter. Comparison of Molybdenum and Tungsten Powders Molybdenum and tungsten powders are two refractory metal powders compared:

Parameter	Molybdenum	Tungsten
Density	10.22 g/cm3	19.3 g/cm3
Melting Point	2623°C	3422°C
Tensile Strength	350 MPa	350 MPa
Thermal Conductivity	138 W/mK	163 W/mK
Electrical Resistivity	5.5 μΩ.cm	5.5 μΩ.cm
Cost	Lower	Higher
Toxicity	Lower	Higher

Molybdenum has lower density, melting point, and cost but offers similarly high strength and conductivity as tungsten. Molybdenum Powder FAQs Q: How is molybdenum powder produced? A: Common industrial production methods for molybdenum powder include hydrogen reduction of molybdenum trioxide and thermal decomposition of molybdates followed by reduction. Q: What is molybdenum powder used for? A: Major applications of molybdenum powder include alloying, thermal spray coatings, electronics, welding, lubricants, pyrotechnics, and as a pure metal. Q: What powder size is used for thermal spray coatings? A: For most thermal spray processes, molybdenum powder is typically used in size ranges of 45-150 microns. Finer powder can be challenging to fully melt. Q: Is molybdenum powder flammable or explosive? A: Yes, like other finely divided metals, molybdenum powder can potentially be flammable or explosive. Proper precautions are needed for safe handling and storage. Q: Where can I purchase high purity molybdenum powder? A: Ultra high purity (99.999%) molybdenum powder can be purchased from major supplier

Niobium Powder

Product	Niobium Powder
CAS No.	7440-03-1
Appearance	Dark Gray Powder
Purity	≥99%,  ≥99.9%,  ≥95%(Other purities are also available)
APS	1-5 µM, 10-53 µM  (Can be customized),  Ask for other available size range.
Ingredient	Nb
Density	8.57g/cm3
Molecular Weight	92.91g/mol
Product Codes	NCZ-DCY-332/25

Niobium Description:

Niobium Powder is one of the numerous advanced ceramic materials manufactured by Nanochemazone. Nanochemazone produces too many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information are available. Please request a quote above for more information on lead time and pricing.

Niobium Powder Related Information :

Storage Conditions: Airtight sealed, avoid light and keep dry at room temperature. Please contact us for customization and price inquiry Email: [email protected] Note: We supply different size ranges of Nano and micron as per the client’s requirements and also accept customization in various parameters. Niobium Powder Niobium is used in prosthetics and implant devices, such as pacemakers because it is physiologically inert and hypoallergenic. Besides, niobium powders are required as a raw material, in the fabrication of electrolytic capacitors. Overview of Niobium Powder Niobium is a shiny, white refractory transition metal with outstanding heat resistance and very high melting point. In powder form, it exhibits excellent thermal, electrical, and chemical stability. Key properties of niobium powder include: High heat resistance and refractory nature Excellent corrosion resistance Superconducting below 9.2K (-264°C) Thermal and electrical stability Low neutron absorption High density powder with good chemical purity Available in various particle size ranges Niobium powder is used where its refractory, conductive, and superconductive properties can be utilized. The major applications include electronics, superconductors, alloys, chemical/heat resistant components, optical coatings, and pyrotechnics. Composition of Niobium Powder

Element	Purity
Niobium (Nb)	99% min
Tantalum (Ta)	0.5% max
Hafnium (Hf)	0.01% max
Nitrogen (N)	0.03% max
Carbon (C)	0.05% max
Oxygen (O)	0.1-0.2%
Hydrogen (H)	0.0015% max

High purity niobium powder contains over 99% niobium metal with low impurity levels. Commercial grades have higher permissible impurities. Properties of Niobium Powder Niobium powder exhibits the following properties:

Property	Value
Density	8.57 g/cm3
Melting Point	2477°C
Thermal Conductivity	53 W/m∙K
Electrical Resistivity	15 μΩ∙cm
Young’s Modulus	105 GPa
Poisson’s Ratio	0.40
Tensile Strength	550 MPa
Compressive Strength	200 MPa
Vickers Hardness	600 HV

Production Methods for Niobium Powder Niobium powder can be produced by methods like: Hydriding-Dehydriding – Niobium ingots crushed into coarse powder and hydrided. The niobium hydride is vacuum dehydrided and milled into fine powder. Calciothermic Reduction – Reduction of niobium oxide with calcium followed by consolidation and crushing to powder. Electrolysis – Molten salt electrolysis of niobium oxide to produce niobium sponge which is crushed into powder. Carbon Reduction – Niobium oxide is reduced with carbon and processed into powder. The hydriding process is most common but carbon and electrothermal reduction offer higher purity powder. Applications of Niobium Powder Niobium powder is used in the following major applications: Electronics – Capacitors, superconducting radio frequency cavities, Josephson junctions, integrated circuits. Metal Alloys – Added to steels and nickel-based alloys for strength and heat resistance. Coatings and Paints – Used in conductive coatings, spark-resistant paints, optical coatings. Welding – As filler material for stainless steel, nickel alloys, and refractory metals. Chemical Industry – Components like heat exchangers, reactors vessels utilizing niobium’s stability. Pyrotechnics – As fuel and oxidizer in pyrotechnic formulations. Specifications of Niobium Powder Niobium powder is available under various specifications: Purity Grades – From commercial purity to ultra high purity (99.99%) based on impurities. Particle Sizes – Ranging from 1 micron to 150 microns for various applications. Morphology – Irregular, spherical, nodular and flaked powder shapes. Surface Area – From low surface area up to high surface area powder grades. Oxygen Content – Low oxygen fine powder grades also available. Custom Grades – Customer specific particle characteristics and purity. Storage and Handling of Niobium Powder Niobium powder requires controlled storage and handling to: Prevent exposure to air and moisture to minimize oxidation Avoid ignition and explosion hazards from fine powder Use appropriate ventilation and respiratory protection during handling Follow precautions in Safety Data Sheet from supplier Store sealed containes in a cool, dry place away from incompatibles Inert gas glove boxes, proper grounding and PPE should be used when handling niobium powder. Inspection and Testing of Niobium Powder The following inspections and tests are typically performed on niobium powder: Chemical Analysis – Inductively coupled plasma or X-ray fluorescence techniques used for composition and purity check. Particle Size Testing – Carried out as per ASTM B822 standard using laser diffraction technique. Morphology – Scanning electron microscopy used for determining shape and surface area. Specific Surface Area – BET gas absorption method used for measuring surface area per unit mass. Impurities Testing – ICP-MS used to quantify levels of tantalum, oxygen, nitrogen and other impurities. Powder Flow – Tested using Hall flowmeter as per ASTM B213 standard. Comparison of Niobium and Tantalum Powder Niobium and tantalum powders are two similar refractory metal powders compared:

Parameter	Niobium Powder	Tantalum Powder
Density	8.57 g/cm3	16.6 g/cm3
Melting Point	2477°C	2996°C
Electrical resistivity	15 μΩ.cm	13 μΩ.cm
Tensile strength	550 MPa	400 MPa
Oxidation resistance	Moderate	Better
Cost	Lower	Higher
Applications	Alloys, capacitors	Medical, electronics

Tantalum has higher density, melting point, and better oxidation resistance but is more expensive than niobium. Niobium Powder FAQs Q: How is niobium powder produced? A: The main production methods for niobium powder are hydriding-dehydriding, calciothermic reduction, electrolysis, and carbon reduction of niobium oxide sources. Q: What is niobium powder used for? A: Major applications of niobium powder include electronics, metal alloys, coatings, chemical industry, welding, pyrotechnics, and superconductors. Q: What is the typical niobium powder size for thermal spray coatings? A: For thermal spray processes, niobium powder is typically used in particle size ranges of 45-150 microns. Finer powder can lead to oxidation issues. Q: Is niobium powder flammable or explosive? A: Yes, like other finely divided metals, niobium powder can potentially be flammable or explosive. Proper precautions are needed for safe handling and storage. Q: Where can I buy high purity niobium powder for superconducting applications? A: Ultra high purity (99.99%) niobium powder suitable for superconducting applications can be purchased from major supplier.