Name: Ceramic Vacuum Tube
Brand: Ultronic
Availability: InStock

Product Details

Ceramic Vacuum Tube

Characteristics:

High mechanical strength High dielectric strength

Low loss in high frequency Low gas leakage coefficient

Low dielectric constant High voltage resistance

Good dimension Convenient soldered

Materials Performance

	Item		Unit	Performance
				Alumina ceramic				steatite ceramic
				90%	92%	95%	96%	steatite ceramic
Ceramic Body	Appearance	Color	-	white,ivory white,brown,black				White off-white
	Mechanical Characters	Bulk Density	g/cm3	≥3.6	≥3.65	≥3.7	≥3..75	2.7
		Water Absorption	%	0				0
		Flexural strength	MPa	280	300	310	320	150
		(HV) Hardness	GPa	12				5.8
	Thermal Characters	Coefficient of linear thermal expansion	20℃~800℃ ×10-6mm/℃	6.3~7.3	6.4~7.4	6.5~7.5	6.8~7.8	8.0
	Thermal Characters	Thermal Conductivity	W/(m.K)	12	16	20	23	2
	Electrical Characters	Dielectric constant(1MHz)	—	9~10	9~10	9~10	10	7.5
		Dielectric loss angle	×10-4	≤6	≤5	≤4	≤3	8
		Dielectric Strength	KV/mm	15	20	24	28	18
Metalized Ceramics		Gas leakage coefficient	Pa.m3/s	≤10-8				-
		Volume resistivity	Ω.cm	≥1015				-
		Combined strength	MPa	≥120				-
		Thickness of Metal	μm	≥20				-

Specifications

Metallized ceramic can be application in the production of porcelain controls, surge arresters, surge arrester with insulation, high temperature resistance, good air tightness, fast heat dissipation, high mechanical strength and high stability in harsh working environment, good soldering and solder with gold, silver, copper, nickel and so on.

The aluminum oxide has the good electrical character in high frequency, and the mechanical strength is good, widely applies in the electronic vacuum device.

Company Description:

Ultronic engages in R&D,manufacturing and selling the products of advanced ceramic materials including Alumina Oxide, Zircomium Oxide,Boron Nitride,Silicon Nitride,Machinable Glass Ceramic and other advanced materials.

Though different manufacturing processes.We supply metalized ceramic components, alumina heater, ceramic pump components and other ceramic components as request.

Ultronic can supply many kinds of ceramic parts according to the customers' special requirements. Our products include the Alumina ceramic plunger, ceramic plunger pump, ceramic rods,ceramic tube ,Ceramic pipe ceramic shaft, ceramic piston, ceramic water valve sheet, ceramic pipe sleeve, ceramic loom plunger, ceramic seal ring, special shape ceramic, ceramic knife etc.

Ultronic products widely used in Aerospace, Research, Food Processing, Fluid Handling, Scientific, Automotive, Defense, Thermal Processing, Electrical, Process Control, Textile & Wire, Pulp & Paper, Mechanical, Glass Processing, Mineral as well as smaller niche markets.

If you have your design,please tell us,and we can provide you the satisfied products according to your drawing or sample.