China Categories
English
Home /Kitchen /

Wear Resistance Industrial Ceramic Coated Pistons Alumina Plunger Yellow Color

Wear Resistance Industrial Ceramic Coated Pistons Alumina Plunger Yellow Color

Brand Name:KAMTAI
Certification:SGS
Model Number:KTALP17
Minimum Order Quantity:10PCS
Delivery Time:25 DAYS AFTER PAYMENT
Payment Terms:L/C, T/T, Western Union, MoneyGram,PAYPAL
Contact Now

Add to Cart

Verified Supplier
Address: Dagang Village,Dingshu Town, Yixing City,Jiangsu Province, China
Supplier`s last login times: within 48 hours
Shipping
lt's easy to get a shipping quote! Just click the button below and complete the short form.
Get Shipping Quote
Product Details Company Profile
Product Details

1. Description

Al2O3 is an electrical insulator but has a relatively high thermal conductivity (30 Wm−1K−1) for a ceramic material. Aluminium oxide is insoluble in water. In its most commonly occurring crystalline form, called corundum or α-aluminium oxide, its hardness makes it suitable for use as an abrasive and as a component in cutting tools.

Aluminium oxide is responsible for the resistance of metallic aluminium to weathering. Metallic aluminium is very reactive with atmospheric oxygen, and a thin passivation layer of aluminium oxide (4 nm thickness) forms on any exposed aluminium surface. This layer protects the metal from further oxidation. The thickness and properties of this oxide layer can be enhanced using a process called anodising. A number of alloys, such as aluminium bronzes, exploit this property by including a proportion of aluminium in the alloy to enhance corrosion resistance. The aluminium oxide generated by anodising is typically amorphous, but discharge assisted oxidation processes such as plasma electrolytic oxidation result in a significant proportion of crystalline aluminium oxide in the coating, enhancing its hardness.

Aluminium oxide was taken off the United States Environmental Protection Agency's chemicals lists in 1988. Aluminium oxide is on EPA's Toxics Release Inventory list if it is a fibrous form.


The applications for alumina advanced ceramics are heavy-duty forming tools, substrates and resistor cores in the electronics industry, tiles for wear protection and ballistics, thread guides in textile engineering, seal and regulator discs for valves, heat-sinks for lighting systems, protection tubes in thermal processes or catalyst carriers for the chemicals industry.


2. Technical Property

PropertyUnits
Al2O3 Content%969899.599.7
Densityg / cm33.703.803.903.92
Color-WhiteWhiteIvoryIvory
Compressive Strength @ 25 CMpa2229209125122350
Tensile Strength @ 25 CMPa200200248252
Flexural Strength @ 25 CMPa331276324320
Elastic Modulus @ 25 CGPa290331366380
Hardness : Knoop Rockwell(Gpa) Kg/mm2
R45N
(11.7) 1196
79
(12.5) 1276
77
(14) 1428
85
(15) 1510 90
Thermal Conductivity @ 25 CW / m-Deg K20.828.1

30.7

31.6
Coefficient of Thermal Expansion @ 25-1000 C1 X 10-6 /
Deg C
7.98.58.18.0
Specific Heat @ 25 Ccal / g / Deg C.184.184.182.180
Maximum Working Temp.Deg C1650165017001700
VolumeResitivity @25C @700 Cohm-cm
ohm-cm
1 X 10-13
1 X 10-8
1X 10-13
2.2 X 10-9
1 X 10-13
6 x 10-7
1 X 10-13
6 x 10-7
Dielectric Strength
(@Thickness) 100Mils
ac volts
per mil
350
340
335330
Dielectric Constant 1Mhz
@25C
e' / eo8.69.49.710.0
Dissipation Factor 1 Mhz
@25C
Tan Delta.0004

.0003


.0003

.0002



China Wear Resistance Industrial Ceramic Coated Pistons Alumina Plunger Yellow Color supplier

Wear Resistance Industrial Ceramic Coated Pistons Alumina Plunger Yellow Color

Inquiry Cart 0