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Feedthrough Metallized Ceramics Components for Industrial Vacuum Electrical Tight Hermetic Sealing

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Feedthrough Metallized Ceramics Components for Industrial Vacuum Electrical Tight Hermetic Sealing

Brand Name : YH

Certification : ISO,CE,ROHS

Place of Origin : CHINA

MOQ : 10

Price : Negotiated price

Payment Terms : L/C,T/T,Western Union

Supply Ability : 10-20000

Delivery Time : 30days

Packaging Details : By carton or wooden case

Applications : Electrical insulators, cutting tools, wear parts, biomedical implants

Chemical Composition : Al2O3 (Aluminum Oxide)

Volume Resistivity : 10^14 Ω·cm

Type : Metallized ceramic

Corrosion Resistance : High resistance to chemical attack

Dielectric Strength : 10 to 15 kV/mm

Shape : Customizable (e.g. rods, tubes, plates)

Purity : Typically 85% to 99.9%

Flexural Strength : 300 to 400 MPa

Properties : Electric Insulation

Density : 3.8 to 3.95 g/cm³

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Feedthrough Metallized Ceramic Components for Industrial Vacuum Electrical Tight Hermetic Sealing

Metallized ceramic bushings are the reliable choice for mission-critical ceramic-metal connections, offering premium insulation and strong metallurgical bonding.

✅ Low dielectric loss for high-efficiency electrical systems

✅ Precision-engineered metallization for optimal interface performance

✅ Comprehensive size range + custom fabrication capabilities

Semiconductor-Grade Alumina Ceramic Built from ultra-pure aluminum oxide,

our alumina (Al₂O₃) ceramic components meet the strict standards of semiconductor manufacturing.

With exceptional particle control, thermal conductivity, and insulation properties, they excel in UHV systems, wafer processing equipment,

and other high-tech semiconductor applications.

Application 

			Applications:

			Feed-through insulators

			Power switches

			Insulating discs

			Traveling wave tubes

			Insulator rings and cylinders

			Vacuum interrupters

			Headers

			Windows

			High-power receptacles

			Power grid tubes

			Precipitator products

			X-ray tubes

			Joining types:

			Ceramic + Mo/Mn Metallized + plating Ni

			Ceramic + Mo/Mn Metallized + plating Ag

			Ceramic + Mo/Mn Metallized + plating Au

			Ceramic + printing Ag

			* Special types are available according to customer's drawings or samples.

Specifications 
Mechanical Properties

			Properties

			Unit

			95%Al2O3

			99%Al2O3

			99.5%Al2O3

			Colour

			--

			White

			Yellow

			Yellow

			Density

			g/cm³

			3.7

			3.85

			3.9

			Hardness

			GPa

			13.7

			15.2

			15.7

			Compressive Strength

			MPa

			2000

			2160

			2350

			Flexural Strength

			MPa

			280

			310

			350

			Fracture Toughness

			MPa・m1/2

			3~4

			3~4

			4.5

			Modulus of Elasticity

			GPa

			320

			360

			370

			Poissons Ratio

			--

			0.23

			0.23

			0.23

Thermal Properties

			Properties

			Unit

			95%Al2O3

			99%Al2O3

			99.5%Al2O3

			Maximum Use Temperature

			℃(No load)

			1650

			1650

			1650

			Thermal Conductivity @ 20°C

			W/(m・K)

			24

			29

			32

			Thermal Expansion a at 20–400°C

			1 x 10-6/°C

			7~8

			7~8

			7~8

			Specific Heat

			J/(kg・K)

			780

			790

			780

			Thermal Shock Resistance

			℃(Put in water)

			200

			200

			200

Electrical Properties

			Properties

			Unit

			95%Al2O3

			99%Al2O3

			99.5%Al2O3

			Dielectric Constant

			1MHz

			9.4

			9.9

			9.9

			Dielectric Strength

			V/m

			15 x 10 6

			15 x 10 6

			15 x 10 6

			Dielectric Loss

			1MHz

			4 x 10 -4

			4 x 10 -4

			4 x 10 -4

			Volume Resistivity @ 25°C

			Ω・cm

			>10 14

			>10 14

			>10 14

			Volume Resistivity @ 500°C

			Ω・cm

			>10 8

			>10 8

			>10 10

Various Types of Metallized Alumina Ceramic 

We Can Do OEM and 0BM According to Your Drawing and Requirements.

Feedthrough Metallized Ceramics Components for Industrial Vacuum Electrical Tight Hermetic Sealing

Ceramic-to-Metal brazing components are widely used in electrical engineering due to their good performance 
for high-vacuum, high-voltage and high-pressure applications. We manufacture a large range of metalized 
ceramic components with the latest technologies in order to meet the needs of our clients. Our metallizing 
processes could be customized according to clients’ requirements.
 
Material :· Insulator-Glazed Ceramic 95% or 99% Al2O3 (white or pink)
· Feedthrugh – Nickel, Kovar, Copper
· Weld Sheath/Flange-Nickel, Kovar, 304 Stainless Steel
Features:· Feedthroughs are custom made to specifications that determined by the electrical, temperature, and environmental condition requirements.
· Standard parts are available
Characteristics· High Abrasion Resistance
· High Mechanical Strength
· Pressures over 10,000 PSI
· High Temperature Usage
· Low Dielectric Loss
· Mass Spectrometer Leak Tested
· High Chemical Stability
Typical Applications:· Aerospace
· Defense Industries
· Aviation
· Industrial Application
· Nuclear Equipment

Packing 
FAQ
Q1. Do you provide product samples?
Yes, we provide samples subject to availability. A nominal sample fee may apply in some cases, and shipping costs are borne by the customer.
 
Q2. What are your accepted payment methods?
We accept T/T (bank transfer) in advance, Western Union, Alipay, and PayPal.
 
Q3. What is your typical delivery lead time?
Lead times vary depending on product requirements, including material selection, dimensions, and specific manufacturing processes.
 
Q4. Do you perform quality inspection before shipment?
Yes, we conduct 100% inspection of all goods prior to delivery to ensure they meet specified standards.
 
Q5. What other ceramic materials do you offer?
We supply a range of advanced ceramic materials, including Alumina, Zirconia, Aluminum Nitride,Boron Nitride, Silicon Nitride, Machinable Glass Ceramic, and related specialized ceramic

Product Tags:

Feedthrough Metallized Ceramic Components

Metallized Ceramic Components for Industrial

Metallized Ceramics Components

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Applications:
Feed-through insulators	Power switches
Insulating discs	Traveling wave tubes
Insulator rings and cylinders	Vacuum interrupters
Headers	Windows
High-power receptacles	Power grid tubes
Precipitator products	X-ray tubes

Properties	Unit	95%Al2O3	99%Al2O3	99.5%Al2O3
Colour	--	White	Yellow	Yellow
Density	g/cm³	3.7	3.85	3.9
Hardness	GPa	13.7	15.2	15.7
Compressive Strength	MPa	2000	2160	2350
Flexural Strength	MPa	280	310	350
Fracture Toughness	MPa・m1/2	3~4	3~4	4.5
Modulus of Elasticity	GPa	320	360	370
Poissons Ratio	--	0.23	0.23	0.23