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Zircar Zirconia ZG Low Mass Zirconia Grog Insulation

Category Ceramic , Machinable Ceramic , Oxide , Zirconium Oxide
Manufacturer Zircar Zirconia
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Zircar Zirconia ZG Low Mass Zirconia Grog Insulation.pdf
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Material Notes:
Zircar Zirconia Low Mass Grog Type ZG is high fired, fibrous yttria-stabilized zirconia particles, ideally suited for thermal insulation under conditions of ultra high temperatures. Type ZG exhibits exceptional resistance to oxidizing and reducing atmospheres at high temperatures. Zirconia, however, loses a small amount of oxygen in inert and reducing atmospheres and in vacuum at very high temperatures. This results in a color change from white to gray; while most other properties remain essentially unchanged and the insulation effectiveness is not impaired. Type ZG Grog offers lower thermal conductivity and specific heat than conventional dense grogs. This makes it useful for crystal growth and glass melting furnace insulation applications.Type ZG contains no organic binders and will produce no smoke or odor when heated. ZG Grog will conduct electricity at elevated temperatures. Type ZG Grog is available in two standard particle size ranges.Type ZG-1 has a Tyler mesh size of -3 1/2 to +8 (5.7mm to 2.4mm)Type ZG-2 has a Tyler mesh size of -8 to +14 (2.4mm to 1.2mm).Features: High Temperature Stability to 2200°CLow Thermal ConductivityHighly RefractoryExcellent Thermal Shock ResistanceNo OutgassingTwo Particle Size Ranges are OfferedAvailable ‘Off the Shelf’Application Information: ZG Grog is used as insulation and crucible support in crystal growing furnaces.ZG Grog is used as insulation for glass melting furnaces.ZG Grog is used as bulk fill insulation.Information provided by Zircar Zirconia.
Physical Properties Metric English Comments
Bulk Density 0.880 g/cc
0.0318 lb/in³
Porosity 70 %
70 %
Outgassing - Total Mass Loss 0.00 %
0.00 %
Thermal Properties Metric English Comments
Melting Point 2590 °C
4690 °F
Maximum Service Temperature, Air 2200 °C
3990 °F
Shrinkage 0.000 %

@Temperature 1650 °C,
Time 3600 sec
0.000 %

@Temperature 3000 °F,
Time 1.00 hour
2.00 %

@Temperature 2000 °C,
Time 1800 sec
2.00 %

@Temperature 3630 °F,
Time 0.500 hour
Component Elements Properties Metric English Comments
HfO2 1.0 - 2.0 %
1.0 - 2.0 %
Y2O3 10 %
10 %
ZrO2 88 - 89 %
88 - 89 %
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