Bubble Zirconia

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Description

GNPGraystar’s Fused Calcia-Stabilized Bubble Zirconia is excellent for refractory applications due to its thermal shock resistance and chemical stability.

This material data has been provided by GNPGraystar Specialty Materials.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

Properties

General

PropertyValueComment

Bulk density

1.2 - 1.3 g/cm³

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ANSI B74.4

Density

5.6 g/cm³

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5.7 g/cm³

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Mechanical

PropertyValueComment

Hardness, Knoop, HK2

1160 [-]

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Knoop (100)

Hardness, Mohs

6.5 [-]

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Thermal

PropertyValue

Melting point

2550.0 °C

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Chemical properties

PropertyValueTesting StandardComment

Aluminium

0.8 %

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ANSI B74.14

Al₂O₃

Calcium

3.8 %

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ANSI B74.14

CaO

Iron

0.05 %

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ANSI B74.14

Fe₂O₃

Silicon

0.4 %

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ANSI B74.14

SiO₂

Titanium

0.1 %

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ANSI B74.14

TiO₂

Zirconium

94.85 %

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ANSI B74.14

ZrO₂+HfO₂

Technological properties

Property
Application areas

GNPGraystar’s Fused Calcia-Stabilized Bubble Zirconia is used in the production of lightweight refractory bricks and castables, as loose bulk backup insulation for high temperature induction and nitriding furnaces, and other applications that require high temperature usage, rapid heating and cooling, and chemical stability.

Color

Yellow

Crystal structure

Cubic & Monoclinic Mixture

Other

Various sizes available. Custom sizes are also availble upon request.