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Rulon Bearings

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China-Yixing Longly Refractories ZTA (20%ZrO2) Zirconia Toughened Alumina Composite Ceramic
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes: LONGLY's Zirconia Toughened Alumina ceramics (hereafter referred as composite ceramic, ZTA) is white, corrosion resistance, good chemical stability. As well all know that alumina is hard, while zirconia is tough, these two types of materials form into a compound of high-intensity and high-tenacity. At room temperature it has a higher bending strength and fracture toughness, therefore ZTA has excellent wear resistance.

The material can be mixed at different ratios of zirconia and alumina to achieve desired mechanical and electrical properties according to customer's request. ZTA ceramic's performance is better than 99 alumina ceramic, while its price is much lower than zirconia ceramic. In many cases that alumina can not fulfill the task, ZTA shows better performance-price ratio than zirconia ceramic.

Applications: ZTA has a wide range of applications in the industries of machinery, electronics, petroleum, chemical, aerospace and textile.

Information Provided by China Yixing Longly Refractories Co. Ltd

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Physical PropertiesOriginal ValueComments
Density >= 4.90 g/cc
Water Absorption <= 0.0010 %
 
Mechanical PropertiesOriginal ValueComments
Hardness, Mohs 8.8
Flexural Strength >= 720 MPacold bending
Compressive Strength >= 730 MPaAmbient
Fracture Toughness >= 7.50 MPa-m½
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+16 ohm-cm
@Temperature 100 °C
Dielectric Strength 25.1 - 26.2 kV/mmDC Breakdown Strength
 
Thermal PropertiesOriginal ValueComments
CTE, linear 4.50 - 5.20 µm/m-°C
@Temperature 25.0 - 800 °C
Thermal Conductivity 33.0 W/m-K
Maximum Service Temperature, Air >= 1720 °C
 
Component Elements PropertiesOriginal ValueComments
Al2O3 78 - 79 %
 
Descriptive Properties
Refractoriness (°C)2260

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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CYXLR025 / 99327

Master Bond adhesives

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