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China-Yixing Longly Refractories Zirconia Ceramics

Category Ceramic , Oxide , Zirconium Oxide
Manufacturer China-Yixing Longly Refractories Co. Ltd
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF China-Yixing Longly Refractories Zirconia Ceramics.pdf
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Material Notes:
LONGLY provides a multitude of zirconia products including balls, plates, tubes, rods and etc. by adopting magnesia, calcia or yttria stabilized zirconia powder as raw material through dry pressing, isostatic pressing and hot pressing. The fine grain size allows for extremely smooth surfaces. Meanwhile Zirconia has low thermal conductivity and is an oxygen-ion conductor above 600°C, which could be used as oxygen sensors and high temperature fuel cells.Compared with alumina ceramics, they have higher abrasion resistance, flexibility, chemical stability, and corrosion resistance. LONGLY's Zirconia products are high temperature resistant, hard, insulated, wear resistant, anti-split, high pressure resistant, particularly tough and without use of any auxiliary lubricant, which are most suitable for harsh environment. We could manufacture and machine various precision ceramic structural parts according to customer request. Main products consist of grinding ball, nozzle, ball valve, ball seat, zirconia molds, optical fiber base pin, optical fiber ferrule, wire drawing film, sealing ring and other wear-resistant parts.Applications: Widely used in metallurgical, electrical, electronic, automotive, pneumatic components, machinery, chemical, textile and other fields.Information Provided by China Yixing Longly Refractories Co. Ltd
Physical Properties Metric English Comments
Bulk Density >= 6.00 g/cc
>= 0.217 lb/in³
Water Absorption <= 0.0050 %
<= 0.0050 %
Particle Size 400 - 800 µm
400 - 800 µm
grain size; 400lambda - 800lambda
Mechanical Properties Metric English Comments
Vickers Microhardness >= 1260
>= 1260
(kg/mm<sup>2</sup>)
Modulus of Elasticity 208 GPa
30200 ksi
Fracture Toughness 8.00 - 10.0 MPa-m½
7.28 - 9.10 ksi-in½
Thermal Properties Metric English Comments
CTE, linear 10.5 µm/m-°C

@Temperature 25.0 - 800 °C
5.83 µin/in-°F

@Temperature 77.0 - 1470 °F
Thermal Conductivity 3.10 W/m-K

@Temperature 20.0 - 400 °C
21.5 BTU-in/hr-ft²-°F

@Temperature 68.0 - 752 °F
Maximum Service Temperature, Air >= 1700 °C
>= 3090 °F
Component Elements Properties Metric English Comments
ZrO2 >= 94 %
>= 94 %
Electrical Properties Metric English Comments
Dielectric Strength 18.0 kV/mm
457 kV/in
Insulating Strength
Descriptive Properties Value Comments
Crushing Load (kN) >16
7mm size
Refractoriness (°C) >2200
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