اللانثانم هيكسابورايد (لاب6) Ceramic Rod

اللانثانم هيكسابورايد (لاب6) Ceramic Rod

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اللانثانم هيكسابورايد (لاب6) Ceramic Rod

Lanthanum hexaboride (لاب6) also called lanthanum boride, and LaB6 is an inorganic chemical, a boride of lanthanum. It is a refractory ceramic material with a dark purple appearance that has a melting point of 2210°C, and is insoluble in water and hydrochloric acid. When bombarded with ions, its physical appearance is altered, and it has a green color in place of its usual dark purple color.

The unique properties of lanthanum hexaboride crystals provide stable electron-emitting media with work functions near 2.70 eV. The low work function yields higher currents at lower cathode temperatures than tungsten, which means greater brightness, or current at the beam focus, and longer life. Typically, LaB6 cathodes exhibit 10 times the brightness and 50 times the service life of tungsten cathodes. In electron microscope applications, these characteristics translate to more beam current in a smaller spot at the sample, improved resolution, and less frequent cathode replacement.
اللانثانم هيكسابورايد (لاب6) Ceramic Rod
سمات:
1. مقاومة ممتازة للصدمات الحرارية
2. Good electrical conductivity
3. Excellent chemical and oxidation resistance
4.High electron emissivities
5.Stable in Vacuum
Lanthanum Hexaboride Applications
Thermionic emission (cathode)
Plasma source for plasma-enhanced coating(PECVD)
Vacuum electron beam welding machine
Electron beam surface reforming device
Electron beam lithography device
Transmission electron microscope
Scanning electron microscope
Surface analysis device
Radiotherapy devices
Lanthanum Hexaboride Properties:
ملكيات
وحدة
اللانثانم هيكسابورايد
Purity
%
>99.5
كثافة
ز / سم 3
>4.30
Structure
/
Monocrystalline
Vickers hardness
HV
1065
Shore hardness
HS
HS
توصيل حراري
ث / م ك
15
Electrical Conductivity
S/m
1.83*10^6
قوة العاطفة
الآلام والكروب الذهنية
165

Technical Data of LaB6

Productلاب6
Lot NumberFU20230403-01-02
Analysis ItemImpurity Element Content
Analytical TechniqueInductively
Test ResultChemical CompositionTest Result (ppm)
ب31.25
La68.47
Ce10
Pr12
Nd10
Sm15
Y10
Fe25
و11
Ca8
Pb10
مو10
و10
Mn5
ص5
س3
Particle Size-300 mesh

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