close
Choose Your Site
Global
Social Media
 |
| Quantity: | |
|---|---|
Lanthanum Cerium Mischmetal is a silvery-gray alloy primarily composed of lanthanum (30-50%) and cerium (40-60%), with minor amounts of praseodymium and neodymium. With a CAS number of 68648-85-5 and a density of 6.5 g/cm³, this cost-effective rare-earth alloy offers a balanced combination of reactivity, thermal conductivity, and mechanical strength. Its ability to form stable intermetallic compounds and improve molten metal properties makes it a staple in foundries, battery industries, and environmental technologies.
Oxidation Resistance: Forms a protective mixed oxide layer (La₂O₃/CeO₂) at 400°C, reducing scaling in high-temperature applications compared to pure lanthanum or cerium.
Desulfurization Efficiency: Reacts with sulfur in molten steel to form stable sulfides (La₂S₃/Ce₂S₃), lowering sulfur content from 0.05% to <0.01% in steelmaking processes.
Grain Refinement: Added to aluminum and magnesium alloys to refine dendritic structures, improving tensile strength by 20% and ductility by 15%.
Electrical Conductivity: Moderate conductivity (1.5×10⁶ S/m) makes it suitable for electrical contacts in low-voltage, high-current systems like battery terminals.
Cost-Effective Alloying: Offers similar performance to pure rare-earth metals at a fraction of the cost, leveraging the abundance of lanthanum and cerium in ore deposits.
In ductile iron manufacturing, this compound serves as an essential nodulizing agent, transforming graphite flakes into spheroidal shapes. This structural modification significantly enhances impact resistance, tensile strength, and durability, making it highly suitable for automotive components such as engine blocks, crankshafts, and suspension parts, where performance under stress is critical.
In lead-acid battery applications, this additive improves grid corrosion resistance and optimizes charge acceptance. By reducing internal degradation, it effectively extends battery cycle life by up to 15%, making it ideal for renewable energy storage systems, electric vehicles, and backup power solutions, enhancing both reliability and overall energy efficiency over prolonged use.
When combined with zinc oxide in polyolefin plastics, this material acts as a highly effective flame retardant. It catalyzes char formation during combustion, significantly reducing heat release, smoke density, and toxic gas emission. This makes it suitable for electrical insulation, automotive interiors, and construction materials requiring high fire safety standards.
In optical glass production, this compound functions as a clarifying agent, removing residual gas bubbles and unwanted oxides through controlled redox reactions. Its use ensures superior transparency, consistent refractive properties, and minimal defects, making it essential for precision lenses, high-quality optical components, and specialized industrial glass applications.
Serving as a support in diesel oxidation catalysts (DOCs), this material promotes efficient conversion of carbon monoxide and hydrocarbons at lower temperatures between 200–300°C. This functionality improves exhaust treatment, reduces harmful emissions, and enhances automotive compliance with stringent environmental regulations, supporting cleaner, more sustainable vehicle performance.
Q: What is the typical lanthanum-to-cerium ratio in mischmetal?
A: Standard grades are 50% Ce/40% La/10% other REE, with custom ratios (e.g., 30% Ce/60% La) available for specialized metallurgical needs.
Q: How does it compare to pure cerium in desulfurization?
A: The lanthanum component provides higher sulfur affinity, enabling deeper desulfurization in lower-temperature molten metal baths.
Q: Can it be used in additive manufacturing powders?
A: Yes, as a master alloy in aluminum 3D printing feedstocks, improving solidification behavior and reducing porosity in printed components.
Q: What precautions are needed for storage?
A: Store in sealed containers under mineral oil to prevent surface oxidation; avoid contact with moisture, which may generate flammable hydrogen gas.
Q: Is there a regulatory restriction on mischmetal exports?
A: Export controls vary by country, but our products comply with all ITAR and EAR regulations for dual-use applications.
Material name | Lanthanum Cerium Mischmetal |
Other Name | La-Ce Mischmetal, Misch metal, Cerium mischmetal |
Formula | La-Ce |
Content | La around 35%, Ce around 65% |
Appearance | Silver grey ingot or lump, or other customized size |
TREM | 99%min |
Chemical Composition ( W / %) | ||||
TREM | ≥99 | C | 0.027 | |
La/TREM | 35.53 | Fe | 0.45 | |
Ce/TREM | 64.47 | Mg | < 0.03 | |
Pr/TREM | < 0.01 | Si | < 0.02 | |
Nd/TREM | < 0.01 | S | < 0.02 | |
Sm/TREM | < 0.01 | |||
Y/TREM | < 0.01 | |||
Lanthanum Cerium Mischmetal is a silvery-gray alloy primarily composed of lanthanum (30-50%) and cerium (40-60%), with minor amounts of praseodymium and neodymium. With a CAS number of 68648-85-5 and a density of 6.5 g/cm³, this cost-effective rare-earth alloy offers a balanced combination of reactivity, thermal conductivity, and mechanical strength. Its ability to form stable intermetallic compounds and improve molten metal properties makes it a staple in foundries, battery industries, and environmental technologies.
Oxidation Resistance: Forms a protective mixed oxide layer (La₂O₃/CeO₂) at 400°C, reducing scaling in high-temperature applications compared to pure lanthanum or cerium.
Desulfurization Efficiency: Reacts with sulfur in molten steel to form stable sulfides (La₂S₃/Ce₂S₃), lowering sulfur content from 0.05% to <0.01% in steelmaking processes.
Grain Refinement: Added to aluminum and magnesium alloys to refine dendritic structures, improving tensile strength by 20% and ductility by 15%.
Electrical Conductivity: Moderate conductivity (1.5×10⁶ S/m) makes it suitable for electrical contacts in low-voltage, high-current systems like battery terminals.
Cost-Effective Alloying: Offers similar performance to pure rare-earth metals at a fraction of the cost, leveraging the abundance of lanthanum and cerium in ore deposits.
In ductile iron manufacturing, this compound serves as an essential nodulizing agent, transforming graphite flakes into spheroidal shapes. This structural modification significantly enhances impact resistance, tensile strength, and durability, making it highly suitable for automotive components such as engine blocks, crankshafts, and suspension parts, where performance under stress is critical.
In lead-acid battery applications, this additive improves grid corrosion resistance and optimizes charge acceptance. By reducing internal degradation, it effectively extends battery cycle life by up to 15%, making it ideal for renewable energy storage systems, electric vehicles, and backup power solutions, enhancing both reliability and overall energy efficiency over prolonged use.
When combined with zinc oxide in polyolefin plastics, this material acts as a highly effective flame retardant. It catalyzes char formation during combustion, significantly reducing heat release, smoke density, and toxic gas emission. This makes it suitable for electrical insulation, automotive interiors, and construction materials requiring high fire safety standards.
In optical glass production, this compound functions as a clarifying agent, removing residual gas bubbles and unwanted oxides through controlled redox reactions. Its use ensures superior transparency, consistent refractive properties, and minimal defects, making it essential for precision lenses, high-quality optical components, and specialized industrial glass applications.
Serving as a support in diesel oxidation catalysts (DOCs), this material promotes efficient conversion of carbon monoxide and hydrocarbons at lower temperatures between 200–300°C. This functionality improves exhaust treatment, reduces harmful emissions, and enhances automotive compliance with stringent environmental regulations, supporting cleaner, more sustainable vehicle performance.
Q: What is the typical lanthanum-to-cerium ratio in mischmetal?
A: Standard grades are 50% Ce/40% La/10% other REE, with custom ratios (e.g., 30% Ce/60% La) available for specialized metallurgical needs.
Q: How does it compare to pure cerium in desulfurization?
A: The lanthanum component provides higher sulfur affinity, enabling deeper desulfurization in lower-temperature molten metal baths.
Q: Can it be used in additive manufacturing powders?
A: Yes, as a master alloy in aluminum 3D printing feedstocks, improving solidification behavior and reducing porosity in printed components.
Q: What precautions are needed for storage?
A: Store in sealed containers under mineral oil to prevent surface oxidation; avoid contact with moisture, which may generate flammable hydrogen gas.
Q: Is there a regulatory restriction on mischmetal exports?
A: Export controls vary by country, but our products comply with all ITAR and EAR regulations for dual-use applications.
Material name | Lanthanum Cerium Mischmetal |
Other Name | La-Ce Mischmetal, Misch metal, Cerium mischmetal |
Formula | La-Ce |
Content | La around 35%, Ce around 65% |
Appearance | Silver grey ingot or lump, or other customized size |
TREM | 99%min |
Chemical Composition ( W / %) | ||||
TREM | ≥99 | C | 0.027 | |
La/TREM | 35.53 | Fe | 0.45 | |
Ce/TREM | 64.47 | Mg | < 0.03 | |
Pr/TREM | < 0.01 | Si | < 0.02 | |
Nd/TREM | < 0.01 | S | < 0.02 | |
Sm/TREM | < 0.01 | |||
Y/TREM | < 0.01 | |||
