Lanthanum Hexaboride (LaB6) Ceramics Parts

Lanthanum hexaboride (LaB6) 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.

Lanthanum hexaboride (LaB6) 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.

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:

Properties	Unit	Lanthanum Hexaboride
Purity	%	>99.5
Density	g/cm3	>4.30
Structure	/	Monocrystalline
Vickers hardness	HV	1065
Shore hardness	HS	HS
Thermal conductivity	W/mK	15
Electrical Conductivity	S/m	1.83*10^6
Flexural strength	MPa	165

 

Innovacera supplies our customers with a high-quality Lanthanum Hexaboride ceramic parts.

Aluminum Nitride – High Thermal Conductivity Material

Aluminum Nitride combines high thermal conductivity with strong electrical resistance. They are an excellent solution for many electronic applications— allowing electrical systems to dissipate heat quickly for maximum efficiency.

Thermal conductivity measures how well a material spreads heat within itself. Cooking pans have high thermal conductivity allowing evenly distributed heat to pass quickly into the food. On the other hand, insulative gloves are used to handle hot objects because their low thermal conductivity prevents heat from transmitting to sensitive hands. Technical ceramics are extraordinarily versatile, exhibiting a wide range of thermal conductivity.

Aluminum Nitride – High Thermal Conductivity Material

Ceramic thermal conductivity compare

Below is our Aluminum Nitride Ceramic material data sheet.

Aluminium Nitride Material Properties
Properties		Value
Bulk Density(g/cm3)		>=3.3
Water Absorption		0.00
Flexural Strength(MPa)		>300
Vickers Hardness (Gpa)		11.00
Modulus Of Elasticity  (Gpa)		>200
Dielectric Constant(1MHz)		8.80
Coefficient Linear Thermal Expansion	/℃，5℃/min, 20-300℃	4.6*10-6
Thermal Conductivity	30 degree Celsius	>=170
Volume Resistivity(Ω.cm)	20 degree Celsius	>1014
	300 degree Celsius	109
	500 degree Celsius	107
Dielectric Strength(KV/mm)		15-20
Remark: The value is just for review, different using conditions will have a little difference.

 

Infineon has officially launched the new EasyDUAL™ CoolSiC™ power module, which uses aluminum nitride ceramics and has a half-bridge structure. It is suitable for 1200V high-power application scenarios, including solar uninterruptible power systems, auxiliary inverters, energy storage systems, and electric vehicle chargers. The CoolSiC module technology equipped with aluminum nitride ceramics can reduce the thermal resistance of the heat sink by up to 40%, which can increase the output power or reduce the operating temperature and improve the service life of the system.

We will work with you to find the optimal material for your application.