High Purity Alumina Ceramic Tube Used in Industry

Ref Price:
Loading Port:
Guangzhou
Payment Terms:
TT OR LC
Min Order Qty:
100 pc
Supply Capability:
100000 pc/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:

 

Product Description

Alumina ceramic is the most mature of the engineering ceramics, offering excellent electrical insulation properties together with high hardness and good wear resistance but relatively low strength and fracture toughness. Alumina has a high melting point, high hardness, although mechanical strength is reduced at temperatures above 1000 C. Due to the relatively large coefficient of thermal expansion, thermal shock resistance is reduced.

Alumina is also an electrically insulating material, with a high electrical resistivity, increasing with purity. Good chemical stability of alumina leads to high corrosion resistance as well. It is insoluble in water and only slightly soluble in strong acid and alkaline solutions. Testing has shown that the low chemical solubility of alumina ceramics components makes them highly resistant to chemical corrosion. This is what makes high purity alumina the material of choice for components in a wide range of industrial applications.

Ceramic tubes are used when electrical insulation is necessary in high heat applications. This makes them useful for supporting electric heating elements in ovens, heaters and furnaces. Ceramics hold their shape and size under pressure. This is important in switching applications where the ceramic is used to open and close electrical contacts in a thermostat or pressure switch. Ceramic parts are very abrasion resistant and offer long life in applications where other materials would wear out quickly.

Main Physical Properties:

1. Good electrical insulation
2. High mechanical strength
3. Excellent wear resistance
4. Excellent corrosion resistance
5. Low dielectric constant

Main Applications:

1. Pump seals and other components
2. Wear resistant inserts
3. Insulating washers or bushings
4. Semiconductor components
5. Aerospace components
6. Automotive sensors
7. Electrical or electronic insulators



Data Sheet

 

Characteristics

Unit

95 Al2O3

99 Al2O3

ZrO2

GPSi3N4

BN

Glass Ceramic

Crystal Structure

-

hexagonal

hexagonal

tetragonal

hexagonal

hexagonal

-

Color

-

white

ivory

white

gray

white

white

Density

g/cm³

3.65

3.88

5.95

3.22

2.26

2.55

Water Absorption

%

0

0

0

0

0.0-1.0

0

Young's Modulus

Gpa

280

350

205

295

670

65

Vickers Hardness

Gpa

14

20

12

18-20

-

-

Flexural Strength

Mpa

280

300

900

650

51

100

Compressive Strength

Mpa

2000

2500

2200

2200

230

500

Thermal Conductivity 

W/(m•K)

18-25

30

2.2

25

20

1.70

Thermal shock resistance

ΔT(C°)

220

180-200

280-350

450-650

>1500

25-100

Max. Working Temperature 

1500

1700

850

1200

960

800

Volume Resistivity

Ω . cm

>10^15

>10^14

>10^12

>10^14

10^13

10^16

Dielectric Constant

-

9.50

9.80

26

8.20

4.08

6.02

Dielectric Strength

kV/mm

16

22

-

16

375

40

 

FAQ

We have organized several common questions for our clients, may help you sincerely

 

--------What is the application of Ceramic Tubes?

1. Pump seals and other components
2. Wear resistant inserts
3. Insulating washers or bushings
4. Semiconductor components
5. Aerospace components
6. Automotive sensors
 

----------What advantages of Ceramic Tubes?

1. Good electrical insulation
2. High mechanical strength
3. Excellent wear resistance
4. Excellent corrosion resistance
5. Low dielectric constant

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:Now there are alumina ceramic knives on the market. What is the difference between this and the zirconia ceramic knives?
Dongguan Mingrui zirconia ceramics factory: the ceramic knife on the market is mostly a kind of nano material "zirconia is processed. With zirconia + alumina powder, with 300 tons of heavy pressure with the mold, pressed into a knife blank, sintered at 2000 degrees Celsius, and then polished with diamond, then with the handle of the finished ceramic knife. The blade is made of ceramic blade new high-tech nanotechnology, sharpness is ten times more than the steel, so the ceramic knife has high hardness, high density, high temperature resistance, anti magnetic and oxidation.Ceramic knives are made of precision ceramic high pressure, so it is called ceramic knives. Ceramic knife is known as "aristocratic knife", as a modern high-tech products, has the advantages of traditional metal cutting tools unmatched; using high-tech nano zirconia as raw material, so the ceramic knife is also called the "gem zirconium knife", elegant and luxurious its remarkable
Q:Which is better, ceramic metal composite pipe?
The company is an export base enterprise for mechanical and electrical products, and a demonstration unit for technological innovation.
Q:How to judge whether the ceramic cup is poisonous or not?
We therefore suggest that in the purchase of some household items or choose some of the more well-known ceramics businesses to rational consumption, most of the time we buy products not because of the practicality of this product, but it is the price to attract us, therefore the degree in the selection process must grasp. In the selection of ceramic cup to choose some cup wall color is nearly white color, try not to contain food or on the inner wall of the cup choose colors or some decorative pattern of the ceramic cup, ceramic cup like this often did not join the glaze, health hazards to human body is relatively small. We can also be more comfortable in the process of using.
Q:Rock, zero4, titanium alloy, ceramic 5
In the sky garden, Pegasus, there are several fountains, frozen with Elven or ice wolf EX, stepping on the frozen fountain, jumping on the front roof, and sprinting at the same time. There are several fountains, one by one.
Q:How do you wash the new ceramic pot?
The new ceramic pot is best to cook a rice porridge, in a fire after the fire to heat the water to boil, then simmer for 20 minutes, so that small starch granules penetrate to the gap in ceramic soup, and through high temperature sterilization, so that ceramic will clean and durable, can improve the life of the ceramic pot 30%. Note: Oh, this pot of soup best drained. Because it acts as a detergent, huh?.Because I just bought the first ceramic pot, so search a lot of use ceramic pot for attention, to share with you ^_^.1, before each use, you must first dry the water outside the casserole. When boiled, if less water is found, warm water should be added in time. Don't spill or boil the soup in the pot.2, if you often use the words of the ceramic pot is best not to use detergent because of detergent will penetrate into the ceramic smile gap, if you didn't clean it, next time you add water boiled it will slip out into the soup, so the best use of starch wipe clean rinse water, starch, if attached to the ceramic surface, penetrate also has a protective effect on the ceramic pot, but if you use a word ceramic pot a few months you, or washing with alkaline detergent, to prevent the breeding of bacteria.3, because ceramics are breathing material, so after cleaning the pot, do not use plastic packaging, should be wrapped in paper, placed in a moderate temperature ventilation.In the process of use, in order to prolong the life, pay attention to the pot heat, avoid contact with cold water or cold marble surface, so that cold, sudden heat, easy to burst the pot.This is what I learned before using it, and I hope it will help us.
Q:Ceramic products belong to the category of the trademark which class?
Ceramics belong to the twenty-first categories of registered trademarks.Twenty-first kinds of kitchen ware, ceramic similar group is 2103: the carboy 210040 tenuicollis altar 210040, household ceramic products 210068, 210129 vessels, 210157 tin glazed earthenware pottery, porcelain pan 210181, 210189, 21019.
Q:There is a black spot on the ceramic 5
It is iron oxide, drop in the firing cable caused, go away
Q:What are ceramic knives used for?
Ceramic knives can cut fruits, vegetables, and fish like ordinary knives, but they won't be as easy to wear and blunt as knives made of ordinary metal knives. Chemical properties are very stable, anti magnetization, electrical insulation, applicable to any occasion.
Q:What is the difference between Jingdezhen Ceramic Institute and Jingdezhen ceramic university?
The Jingdezhen Ceramic Institute has been upgraded to Jingdezhen ceramic University, so they are a school.
Q:The ceramics workshop where the sword of the spirit
You can click on the directory client role information > collection label commissioned or Open Directory > through shortcuts.After a certain period of time, the commissioned props are completed and can be received from the craftsmen in various regions or received immediately by mail. But you have to pay an extra charge when you receive it by mail

1. Manufacturer Overview

Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range