Cerium Hexaboride Ceramic Part Description
Cerium Hexaboride is a ceramic material wildly used in electron microscopes with a low work function making it one of the most known cathode materials for electron emissivity, and it is very stable in a vacuum. CeB6 has an evaporation rate at normal operating temperatures near 1800 K that is lower than that of LaB6.
Cerium Boride or (Cerium Hexaboride) is generally immediately available in most volumes. Borides are all hard, high-melting materials with metal-like conductivity. They are stable to nonoxidizing acids but break down in strong oxidizing agents and strong alkalis.
Cerium Hexaboride Ceramic Part Applications
1. Electron Sources in Electron Microscopes: CeB6 is commonly used as a cathode material in electron guns for electron microscopes. It provides a stable and bright electron beam, which is essential for high-resolution imaging.
2. Thermionic Emission Devices: Due to its high thermionic emission efficiency, CeB6 is used in various devices where electron emission is needed at high temperatures, such as in X-ray tubes and other vacuum devices.
3. Ion Propulsion Systems: CeB6 is used in ion thrusters for spacecraft propulsion. Its ability to emit electrons efficiently at high temperatures makes it suitable for generating the ionized plasma required for propulsion.
4. High-Temperature Coatings: CeB6 can be used as a coating material for parts that operate under extreme thermal conditions, protecting them from oxidation and degradation.
5. Field Emission Displays (FEDs): CeB6 is also explored in advanced display technologies where field emission is utilized, providing a stable and efficient electron source.
6. Research and Development: CeB6 is used in various experimental setups and research applications that require materials with high melting points and stable thermionic emission characteristics.
Cerium Hexaboride Ceramic Part Specification
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Other Names
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Cerium boride, Cebix
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Chemical Formula
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CeB6
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EC Number
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234-526-9
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Molar Mass
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204.986 g/mol
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Density
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4.8 g/cm3
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Solubility in Water
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Insoluble
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Crystal Structure
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Cubic
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Space Group
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Pm3m; Oh
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Chemical Composition
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CeB6 (% min.)
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99.9 %
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B (% min.)
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31 %
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Rare Earth Impurities
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Non-RE Impurities
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La
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<120 ppm
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Fe
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<250 ppm
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Pr
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<150 ppm
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Si
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<100 ppm
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Nd
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<180 ppm
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Ca
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<90 ppm
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Sm
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<112 ppm
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C
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<300 ppm
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Y
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<250 ppm
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Mg
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<100 ppm
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Ti
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<100 ppm
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Cerium Hexaboride Ceramic Part Packing
Our Cerium Hexaboride Ceramic Part is deliquescent and will be kept sealed. It will be carefully handled during storage and transportation to preserve the quality of our product in its original condition.
Cerium Hexaboride Ceramic Part FAQs
Q1: What is Cerium Hexaboride?
Answer: Cerium Hexaboride (CeB₆) is a refractory ceramic material composed of cerium and boron. It is known for its high melting point, excellent electrical conductivity, and efficient electron emission properties.
Q2: Why is Cerium Hexaboride used in electron emission applications?
Answer: CeB₆ is used in electron emission applications due to its low work function and high efficiency in emitting electrons, making it ideal for use in electron microscopes, electron beam lithography, and other high-vacuum electron emission devices.
Q3: How is Cerium Hexaboride Ceramic Part manufactured?
Answer: CeB₆ ceramic parts are typically manufactured using powder metallurgy techniques, which involve pressing and sintering CeB₆ powder into the desired shape.
