This alumina combustion boat with hole is designed for oxygen combustion furnaces in C/S analysis and loss-on-ignition tasks. The hole optimizes gas exchange and sample release, improving throughput and repeatability when paired with compatible covers and accelerators.
Alumina Combustion Boat With Hole Benefits
- Hole-assisted gas exchange → improves combustion efficiency and reduces residuals in carbon/sulfur workflows.
- High-temperature alumina body → withstands up to 1700 °C to maintain form and reduce warping across runs.
- Dimensional consistency → low CTE (~8–9 × 10⁻⁶/K) supports repeatable placement and sealing with liners/covers.
- Low contamination risk → ceramic chemistry minimizes metal pickup versus metallic boats for trace analysis.
- Analyzer ecosystem fit → sizes compatible with mainstream C/S modules.
Alumina Combustion Boat With Hole Properties
| Property | 95% Alumina (AD-ALU-950) |
96% Alumina (AD-ALU-960) |
99% Alumina (AD-ALU-990) |
99.5% Alumina (AD-ALU-995) |
99.7% Alumina (AD-ALU-997) |
99.9% Alumina (AD-ALU-999) |
|---|---|---|---|---|---|---|
| Purity (Al₂O₃) | ≥95% | ≥96% | ≥99% | ≥99.5% | ≥99.7% | ≥99.9% |
| IEC 60672-3 Classification | C795 | C795 | C795 | C799 | C799 | C799 |
| Density | 3.75 g/cm³ | 3.70 g/cm³ | 3.80–3.91 g/cm³ | 3.90–3.92 g/cm³ | 3.94 g/cm³ | 3.94 g/cm³ |
| Flexural Strength | 280 MPa | 300 MPa | 300–320 MPa | 320–350 MPa | 330 MPa | 315–340 MPa |
| Thermal Conductivity (25°C) | 18–25 W/(m·K) | 25 W/(m·K) | 24 W/(m·K) | 30–38 W/(m·K) | 35–40 W/(m·K) | 35–42 W/(m·K) |
| Thermal Expansion Coefficient | 7.6 × 10⁻⁶/K | 8.2 × 10⁻⁶/K | 7.2 × 10⁻⁶/K | 7.6 × 10⁻⁶/K | 7.6 × 10⁻⁶/K | 7.6 × 10⁻⁶/K |
| Water Absorption | <0.20% | ≈0 (rounded) | ≤0.10% | ≤0.10% | ≤0.05% | ≤0.01% |
| Color | Ivory/White | White | Ivory | Ivory | Ivory | Ivory |
| Typical Applications | Low-cost routine furnace use | Cost-effective everyday use | Standard C/S analysis | High-temperature, high-purity applications | Standard grade for trace analysis | Ultra-high-purity analysis |
Material Selection Guide
- 95% Alumina: Economical choice for routine furnace use and sample preparation.
- 96% Alumina: Practical balance of cost and performance for everyday use.
- 99% Alumina: Standard choice for C/S analysis and oxygen combustion testing.
- 99.5% Alumina: Suitable for applications requiring high temperatures and high purity.
- 99.7% Alumina: Recommended for trace analysis where low contamination matters.
- 99.9% Alumina: For demanding analysis, corrosive samples and harsh conditions.
Alumina Boat Sizes and Hole Configurations
Compare the hole arrangement, boat shape and overall dimensions in each group. Long boats, double-hole boats and boat-crucible forms offer distinct shapes for your existing part or drawing.
Type 1-Alumina Boat Variants with Hole
| Item NO. | length (mm) | width (mm) | height (mm) |
| TE-AS-071 | 100 | 84 | 35 |
| TE-AS-072 | 100 | 56 | 35 |
| TE-AS-073 | 100 | 43 | 26 |
| TE-AS-074 | 100 | 27 | 27 |
| TE-AS-075 | 100 | 24 | 17 |
| TE-AS-075-1 | 100 | 20 | 20 |
| TE-AS-075-2 | 100 | 27 | 27 |
| TE-AS-075-3 | 103 | 28 | 30 |
| TE-AS-075-4 | 100 | 43 | 25 |
| TE-AS-075-5 | 100 | 24 | 17 |
| TE-AS-075-6 | 100 | 27 | 25 |
| TE-AS-075-7 | 100 | 43 | 26 |
| TE-AS-075-8 | 100 | 56 | 35 |
| TE-AS-075-9 | 100 | 50 | 35 |
| TE-AS-075-10 | 100 | 56 | 35 |
| TE-AS-076 | 73 | 30 | 22 |
| TE-AS-076-1 | 73 | 30 | 22 |
| TE-AS-076-2 | 70 | 30 | 22 |
| TE-FA-001 | 300 | 70 | 30 |
| TE-FA-002 | 200 | 80 | 35 |
| TE-FA-003 | 200 | 11 | 12 |
| TE-FA-004 | 105 | 23 | 20 |
| TE-FA-005 | 100 | 30 | 25 |
| TE-FA-006 | 90 | 10 | 10 |
| TE-FA-007 | 80 | 30 | 20 |
| TE-FA-008 | 88 | 12 | 10 |
Type 2-Long Alumina Combustion Boats with Hole
| Item NO. | Length(mm) | Width(mm) | Height(mm) | Purity |
| TE-AS-085-5 | 95 | 16 | 11 | 99% |
| TE-AS-085-3 | 77 | 13 | 8 | 99% |
| TE-AS-083-3 | 40 | 10 | 7 | 99% |
| TE-AS-077 | 44 | 11 | 7 | 99% |
| TE-AS-079-7 | 88 | 15 | 9 | 99% |
| TE-AS-079-4 | 97 | 17 | 12 | 99% |
Type 3-Double-Hole Alumina Combustion Boat
| Item NO. | Length(mm) | Width(mm) | Height(mm) | Purity |
| TE-AS-083-1 | 44 | 11 | 8 | 99% |
Type 4-Alumina Boat-Crucible with Hole
| Item NO. | Length(mm) | Width(mm) | Height(mm) | Purity |
| TE-AS-077-1 | 39 | 10 | 6.5 | 99% |
*Note: The table above shows only some standard specifications. For more specifications, please refer to the complete product catalogue or contact us for customization.
For TE-AS-085-1, view the ordinary alumina combustion boat: 27 × 7 × 6 mm, 99% alumina. Compare deeper vessel shapes on the alumina boat-crucible.
How to Choose an Alumina Combustion Boat with Hole
| Decision Factor | What to Consider | What It Determines |
|---|---|---|
| Equipment Compatibility | Furnace tube diameter, loading mechanism, holder design | Outer dimensions and end profile that fit your analyzer |
| Sample Capacity | Sample mass, sample form (powder/pellet), flux requirements | Inner cavity size and working fill height |
| Hole Requirements | Gas flow needs, sample type, combustion method | Hole diameter, position, and quantity |
| Temperature Cycle | Max temperature, heating rate, cooling cycle | Material grade and wall thickness |
| Chemical Compatibility | Sample composition, atmosphere, additives used | Material selection for contamination control |
Alumina Combustion Boat with Hole Packaging
- Boats are separated with cushioning layers inside inner boxes; outer cartons use foam/blocking to reduce edge chipping.
- Each boat is inspected for cracks, chips, and hole clearance before packaging.
- Packaging materials selected to minimize contamination risk during storage and transport.
