Advanced Alumina Metallized Ceramic Ring / Tube for Gas Discharge

Basic Info.

Model NO.	Customized
Further Finishing Treatment	Machining, Glazing, etc
Feature	High Performance and High Precision
Surface Metallization Process	Mo-Mn Method
Optional Purity	94.4%-99.8% Alumina
Color	White, Beige, Pink
Product Name	Structural Ceramic Components with Metallization
Transport Package	Vacuum Packaging
Specification	As per the drawing
Trademark	JingHui
Origin	China
HS Code	8547100000
Production Capacity	50000PCS/Month

Packaging & Delivery

Package Size 36.00cm * 20.00cm * 24.00cm Package Gross Weight 10.000kg

Product Description

Advanced Alumina Metallized Ceramic Ring / Tube for Gas Discharge
Introduction to Ceramic Structural Parts
Ceramic structural parts are a general term for various complex-shaped ceramic parts.
Ceramic structural parts are made by selecting high-purity synthetic compounds (such as alumina, zirconia, silicon nitride, etc.), using forming method like dry pressing, hot pressing, isostatic pressing or injection molding, sintering at high temperature, and finally performing precision machining.
What are the Advantages of Ceramic Structural Parts?
Ceramic structural parts have high temperature resistance, corrosion resistance, wear resistance, insulation and other properties, and can work well in various harsh environments.
Production Process
Our product production is mainly divided into 3 steps, forming - finishing - metallization. The production flow chart is shown below.

1. Forming Method
There are mainly Dry Pressing, Hot Pressing, Isostatic Pressing, and Ceramic Injection Molding (CIM), each of which has its own advantages and disadvantages. We will choose the most suitable forming method on the basis of saving costs and ensuring quality.

2. Finishing Process
In order to achieve the precision of the product, most ceramic structural parts need further finishing treatment after the sintering process. The main finishing processes we use are machining (lapping, polishing...) and glazing.

3. Metallization Process
Metallization of ceramics refers to the creation of thin metal layers (films) on the surface of ceramics. After the surface of the ceramic material is metallized, it has both the characteristics of ceramics and the properties of metal.
Which Metallization Processes We Support?
Jinghui specializes in the production of metallized ceramic structural components, has rich experience in manufacturing precision ceramic parts, and is proficient in the surface metallization process of ceramic structural parts such as Mo-Mn method, electroless nickel plating method, silver firing method and W-Au method. Here we focus on the Mo-Mn method.
Introduction to Mo-Mn MethodThe process of the Mo-Mn method is to coat a layer of metal powder (with Mo powder and Mn powder as the main raw materials) on the ceramic surface, and form a solidified and dense metallized layer through high-temperature sintering, thereby realizing the metallization of ceramics.
The brief process of Mo-Mn method is shown in the picture below.

Metallized ceramic structural parts obtained by the Mo-Mn method have the following characteristics:1. High bonding strength, high air tightness, high reliability and good heat resistance.2. The finished product has dual characteristics of ceramic and metal.We can produce metallized ceramic structural parts of various specifications according to customers' drawings.Product Applications

Ceramic structural parts are widely used in semiconductor, optical fiber communication, laser, medical, equipment, petroleum, metallurgy, electronics and other industries.
We can produce products with different precision and complex structure according to customers' requirements.

Product Parameters
The following is the material properties of our alumina ceramic structural parts.

Category	Property	Unit	99.8%Al2O3	99.5%Al2O3	99%Al2O3	95%Al2O3	94.4%Al2O3
Mechanical	Density	g/cm3	≥3.95	≥3.90	≥3.85	≥3.65	≥3.60
	Water absorption	%	0	0	0	0	0
	Vickers hardness	HV	1700	1700	1700	1500	1500
	Flexural strength	Mpa	≥ 390	≥ 379	≥ 338	≥ 320	≥ 312
	Compressive strength	Mpa	≥ 2650	≥ 2240	≥ 2240	≥ 2000	≥ 2000
	Fracture toughness	Mpam1/2	4-5	4-5	4-5	3-4	3-4
Thermal	Max. Service temperature(non-loading)	ºC	1750	1675	1600	1500	1500
	CTE (Coefficient of thermal expansion)20-800ºC	1×10-6/ºC	6.5-8.2	6.5-8.0	6.2-8.0	5.0-8.0	5.0-8.0
	Thermal shock	T (ºC)	≥ 200	≥ 200	≥ 200	≥ 220	≥ 220
	Thermal conductivity25ºC	W/(m·k)	31	30	29	24	22.4
	Specific heat	1×103J/(kg·k)	0.78	0.78	0.78	0.78	0.78
Electrical	Volume resistivity25ºC	ohm·cm	> 1×1014	> 1×1014	> 1×1014	> 1×1014	> 1×1014
	300ºC		1×1012	1×1012	8×1011	1012-1013	1012-1013
	500ºC		2×1012	5×1010	2×109	1×109	1×109
	Dielectric strength	KV/mm	20	19	18	18	18
	Dielectric constant (1Mhz)	(E)	9.8	9.7	9.5	9.5	9.5

Product Recommendations
Thank you for your visit. We can produce and process various special-shaped and high-precision ceramic structural parts according to your requirements.

We are confident that we can fulfill your product requirements well. Welcome to order with drawings or samples, and look forward to becoming your reliable partner!

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