12017-68-4

Basic information

• Product Name: Samarium cobalt
• Synonyms: SAMARIUM COBALT POWDER (1:5);cobalt,compd.withsamarium(5:1);cobalt, compound with samarium (5:1);SAMARIUM COBALT POWDER, -30 MESH;SAMARIUM COBALT, REACTON, SM 33%;powder30mesh;Cobalt-samarium;Samarium cobalt
• CAS NO: 12017-68-4
• Molecular Formula: CoSm
• Molecular Weight: 209.29
• EINECS: 234-625-7
• Mol File: 12017-68-4.mol

Chemical Properties

• Melting Point: ~1325°
• Appearance: /powder
• Density: 8.60
• Sensitive: Air & Moisture Sensitive
• CAS DataBase Reference: Samarium cobalt(CAS DataBase Reference)
• NIST Chemistry Reference: Samarium cobalt(12017-68-4)
• EPA Substance Registry System: Samarium cobalt(12017-68-4)

Safety Data

• Hazard Codes: Xn
• Statements: 20/21/22-36/37/38
• Safety Statements: 26-37/39
• WGK Germany: 3
• TSCA: Yes
• HazardClass: 4.1
• Hazardous Substances Data: 12017-68-4(Hazardous Substances Data)

Usage

Uses

Used in Aerospace Industry:
Samarium cobalt is used as a critical component in aerospace applications for its ability to provide strong and stable magnetic fields at high temperatures, which is essential for the reliable operation of various systems in aircraft and spacecraft.
Used in Automotive Industry:
In the automotive sector, samarium cobalt is utilized as a key material in electric motors and sensors due to its high coercivity and resistance to demagnetization, ensuring consistent performance and longevity in demanding environments.
Used in Electronic Devices:
Samarium cobalt magnets are employed in electronic devices such as hard disk drives, headphones, and speakers, where their high energy product and stability contribute to enhanced performance and reliability.
Used in Industrial Equipment:
These magnets are also used in various industrial equipment, including generators, motors, and sensors, where their strong magnetic properties and resistance to demagnetization are crucial for maintaining efficient and stable operation.
Used in Renewable Energy Systems:
Samarium cobalt is utilized in renewable energy systems like wind turbines and electric vehicles, where their high temperature stability and strong magnetic fields are vital for efficient energy conversion and storage.

InChI:InChI=1/Co.Sm/q+2;+3

Upstream product

• 7440-19-9 samarium 
• 7440-48-4 cobalt 
• 10361-82-7 samarium(III) chloride 

Relevant articles and documents

Electrodeposition of Sm-Co nanoparticles from aqueous solutions

Supported Sm-Co nanoparticles have been synthesized by short pulse electrodeposition using aqueous solutions containing glycine as complexant and buffering agent. Nanoparticle composition is a function of pulse amplitude and pulse duration. Short pulses in particular minimize oxygen incorporation, down to 3 at%. X-ray photoelectron spectroscopy and X-ray diffraction data support the hypothesis that metallic alloys have indeed been obtained by this technique, along with mixed oxides of the metals. In-plane coercivities of up to 5.3 kOe have been achieved in as-plated nanoparticle assemblies when the relative Sm content was about 20 at% and particle size around 80 nm. These Sm-Co nanoparticles hold the promise to be a practical and inexpensive material for use in the synthesis of permanent magnets by powder processing.

Structure and magnetic properties of mechanically alloyed SmxCo1-x

A study of the phase structure and magnetic properties of mechanically alloyed and heat-treated SmxCo1-x with x=0.13 to 0.24 has been carried out. Remanence enhancement above 0.5 Ms(Ms=saturation magnetisation) was found in samples with x=0.12 to 0.17 after annealing at 700 °C. A maximum energy product of 16.6 M G Oe was measured for Sm0.13Co0.87. Coercive forces above 50 kOe were obtained for x=0.17-0.20 after heat treatment at approximately 800 °C. The highest value of 57 kOe was measured for Sm0.19Co0.81.

Ternary system Sm-Co-Zr isoplethic section at Co = 89 at.%

A knowledge of solid-liquid equilibria is necessary to optimise sintering temperature in industrial Sm2Co17-type magnets. A single-phase state is reported as precursor of the cellular microstructure of the Sm2Co17 permanent magnets. The formation of this phase at high temperature seems for a large part to be governed by Zr addition. In order to understand the behaviour of 2:17-type magnets, phase relationships have been investigated in the Co-rich field of the Sm-Co-Zr system. The 1150°C isothermal section has been reinvestigated. A two-phase region was observed involving hexagonal and rhombohedral Sm2Co17. An isoplethic section has been drawn for temperatures between 1150°C and the melting points of the alloy with Co = 89 at.%, (Sm + Zr) = 11 at.%. Two four-phase equilibria have been observed. A tentative polythermal representation of the Sm-Co-Zr system in the Co-rich field has been drawn.