STCERA Metallized Alumina Ceramic Vacuum Tube
USD $1 - $1,000 /Piece
Min.Order:1 Piece
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1. Pictures of Ceramic Vacuum Tube
2. Description
Our products has the features of super hardness, high wear resisting, good corrosion resistance ,high temperature tolerance, good insulation, precision process, high mechanical strength, good chemical stability and so on. We can make the part by dry pressing, cold isostatic pressing and CNC grinding and polishing etc.
Data Sheet of Product
Properties | Unit | Alumina | Zirconia | ||||
96%Al2O3 | 99%Al2O3 | 99.5%Al2O3 | 99.8%Al2O3 | 99.9%Al2O3 | 3Y-TZP | ||
Colour | - | White | White | Ivory | Ivory | Translucent | white/black |
Bulk density | g/cc | 3.78 | 3.88 | 3.93 | 3.93 | 3.98 | 6.03 |
Water Absorption | % | 0 | 0 | 0 | 0 | 0 | 0 |
Grain size | μm | 5-10 | 2-5 | 2-5 | 2-5 | 2-4 | 0.4 |
Bending strength | MPa | 380 | 350 | 360 | 380 | 300 | 1000 |
KIC | MPa.m1/2 | 3~4 | 4 | 3~4 | 3~4 | 3~4 | 5~8 |
Vickers Hardness | GPa | 13 | 14 | 14.5 | 14.5 | 15 | 13 |
Young's Modulus of Elasticity | GPa | 360 | 370 | 370 | 380 | 390 | 200 |
Thermal Conductivity | W/m° K | 24 | 28 | 32 | 32 | 34 | 2 |
Coefficient of Linear Expansion | 10-6/°C | 6.7 | 7.2 | 7.2 | 7.2 | 7.2 | 10.5 |
Dielectric Constant (1MHz) | - | 9.1 | 9.5 | 9.6 | 9.6 | 9.9 | 33 |
Dielectric Loss Angle (1MHz) | - | 0.0002 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.002 |
Dielectric Strength | V/m | 15×106 | 15×106 | 15×106 | 15×106 | 15×106 | 11×106 |
Volume Resistivity | Ohm.cm | >1014 | >1014 | >1014 | >1014 | >1014 | 1013 |
(RT) |
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4. Why choose us?
1.Rich experience: We specialized in producing precision ceramic parts for 7 years, and our products are exported to northern America,south America, Europe ,Australia and so on for a long time.
2.High precision and tight tolerance: We strictly follow the international standard in production, all process is supervised under inspection department. We have QC persons in every department, to ensure all components meet the quality demand.
3.Quick delivery time: We put your order into our tight production schedule to ensure your punctual delivery time.
4.Competitive price: we can provide the most reasonable price for you.
5. Customized Shape: we accept customization according to your drawings.
Advanced equipments and Exquisite Machining Process
1.Trade Items of Products
Payment:T/T
Port:Shenzhen
MOQ:1pcs
Supply Ability:1000 pcs per week
2. Shipping
Introduction of company
Hunan STCERA Co., Ltd. is a private technological enterprise which is professional in precision ceramic parts research and development, manufacture and sale.
Our main products are ceramic sleeves, tubes,bushings which are widely used in Optical fiber communication field. And ceramic parts for semiconductor device which are widely used by the well-known demotic semiconductor enterprises. And other electronic ceramic parts.
Precision ceramics we produced are widely used in many industries such as semiconductor devices, optical fiber communication, LED, petroleum, metallurgy, electronics, food, medical treatment, aerospace with their excellent performance of abrasion resistance, corrosion resistance, thermostability etc.
Company environment
FAQ
1. Q: What’s the scale of Stcera? A: Factory of Stcera covers an area of 2000 square meters; office space covers 500 square meters , and there are more than 50 people working in Stcera.
2.Q: What’s the relationship between Stcera and SelTon?
A: Shenzhen SelTon Co., Ltd, which was established in 2008, is the predecessor of Stcera, and Stcera was registered in 2013. You can choose either Selton or Stcera to order.
5.Q: What’s your normal delivery date?
A: 7 to 45 days according to the complexity of products.
6.Q: Do you have any quality assurance of your products?
A: First, if there are problems on quality of our products, we can produce again for free for you or refund to you. Second, if the goods are worn out on the way of delivery, we will take responsibility in that case.
Contacts
Phone: (+86) 17708458654
Email:sales2(at)
Skype: stcera18
Wechat:17708458654
Yahoo Messenger:stcera18