Our 99.8% high purity alumina labware is manufactured using advanced ceramic processing techniques including slip casting and pressure casting to ensure high density, mechanical strength, and consistent purity.

The ceramic material is produced using high-purity alumina powder sourced from globally recognized suppliers such as ALCOA, ensuring excellent thermal stability and chemical resistance for demanding laboratory and industrial applications.

These alumina ceramics are widely used in metallurgy laboratories, materials science research, chemical analysis and high-temperature furnace environments.

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Manufacturing Process

ANTS alumina labware is manufactured using precision ceramic processing methods:

• Slip casting
• Pressure casting

During sintering, strict control is maintained to ensure alumina purity above 99.8% and consistent microstructure.

Typical sintered grain size: 2–4 microns

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Dimensional Tolerance

Manufacturing tolerances for alumina labware:

• ±1 mm for dimensions up to 50 mm
• ±2 mm for dimensions above 50 mm

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Chemical Composition

Typical chemical composition of high-purity alumina material:

Values represent typical production averages based on internal testing.

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Material Characteristics

High-purity alumina ceramics provide excellent performance in demanding environments:

• High density ceramic structure
• Excellent chemical resistance
• High mechanical strength
• Stable performance at elevated temperatures
• Suitable for ultra-high vacuum environments

Typical sintered density:

3.9 g/cm³ (≈ 98% of theoretical density)

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Chemical Resistance

Alumina 99.8% is highly resistant to most acids, chemicals, and reagents.

Solubility tests show:

• Less than 0.1% weight loss in boiling hydrofluoric acid (3 hours)
• Less than 10⁻³% weight loss in boiling HCl, H₂SO₄, and NaOH (12 hours)

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Thermal Properties

Maximum service temperature without load:

1750°C

Thermal shock behavior:

Temperature change rate should not exceed 150°C per hour.

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Ultra High Vacuum Compatibility

ANTS alumina components have been successfully tested for ultra-high vacuum (UHV) compatibility, making them suitable for advanced laboratory and research applications.

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Usage Considerations

Although alumina is chemically stable in most environments, it may form low-temperature eutectics with compounds containing:

• Bismuth
• Lead
• Silicon
• Tin
• Antimony
• Rare earth elements

Care should therefore be taken when using alumina wares in systems containing multiple eutectic-forming compounds.

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Recommended Applications

ANTS 99.8% alumina labware is widely used in:

• Metallurgy laboratories
• Materials science research
• Chemical analysis laboratories
• Battery research and materials testing
• Industrial R&D laboratories
• Glass melting applications including borosilicate glass

These ceramics are suitable for both oxidizing and reducing atmospheres, and remain inert in hydrogen and carbonaceous environments.

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Physical Properties