Features of Alumina Boat
- High-purity alumina composition, purity exceeding 99.8%
- Exceptional thermal stability up to 1750℃
- Excellent chemical and corrosion resistance
- Available in various shapes and customizable sizes
- Suitable for vacuum and controlled atmosphere use
- Strong resistance to thermal shock and cracking
Alumina Boats for Semiconductor Processing and Thermal Analysis
Made from 99.8%+ pure alumina, these boats provide excellent durability and thermal insulation to 1800℃. NKM alumina ceramic boats are suited for semiconductor diffusion, calcination of powders, and high-temperature material analysis. They can effectively reduce sample reactions with low porosity, excellent thermal resistance, and tailored shapes.
Popular Alumina Boat Types
Newthink offers customized alumina boat with precise dimensions, high thermal and dielectric performance, supporting applications in power electronics, semiconductor processing, and high-temperature industries.
Used for thermal decomposition and combustion testing at high temperatures.
Offers stable support for sintering or melting operations in tube furnaces.
Al₂O₃ Purity ≥99.8%, reduce contamination in chemical or electronic applications.
Includes a cover to protect samples during heat transfer or controlled-atmosphere sintering.
Key Industrial Applications of Alumina Boat
Newthink supports your precision processes with alumina ceramic boat across critical applications.
Powder CalcinationUsed to hold powders during high-temperature calcination, ensuring minimal contamination due to high purity and chemical inertness.
Material SinteringIdeal for sintering small ceramic or metal parts at up to 1800°C thanks to excellent thermal stability and shape retention.
Wafer Diffusion ProcessesApplied in semiconductor manufacturing to support wafers during high-temperature diffusion treatments without releasing impurities.
Combustion AnalysisDesigned for organic element analysis in combustion furnaces, offering reliable thermal shock resistance and dimensional accuracy.
Metal Melting and AssayServes as a crucible alternative in melting small quantities of gold, silver, or other metals in labs and assay environments.
Thermal Processing in Controlled AtmospheresUsed in vacuum or inert gas furnaces to safely process samples requiring sealed heat treatment.
Why Choose Newthink Alumina Boat?
Choosing Newthink means choosing stable quality. We provide you with exactly what you need.
Precision forming and post-machining ensure consistent wall thickness and flatness. This is important to wafer support or analytical repeatability.
Newthink alumina boats are available for customized sizes and shapes, with or without a lid. NKM help you to choose the boats that match your furnace or setups.
From prototyping to high-volume manufacturing, both small quantities and bulk orders are supported. You can choose the amount you need to avoid buying too much.
Alumica boats are packaged with foam or vacuum-sealed trays, preventing breakage and cracks during global air or sea transport. NKM guarantees that you will receive your boats in perfect condition.
Alumina Boats Production Workshop
Newthink has 14 years of experience in advanced ceramic production. NKM’s workshop has various advanced equipment that support the bulk production of many advanced ceramics such as silicon carbide, alumina and zirconia. With multiple production lines and advanced equipment, NKM produce alumina boats in various shapes and thicknesses, offering both small-batch production and large-volume orders. NKM uses precision grinding and individual inspection ensure the performance of boats. You can get top-quality alumina ceramic boats here with fast delivery and excellent after-sales service.
Package of Alumina Boats
Newthink ensures that the product packaging is perfect. Each alumina boat is carefully packed in specially tailored protective materials that match specific shape and size. We use foam inserts and individual compartments to prevent movement, minimizing chipping risks during the transport. For export shipments, all the boats are exported in reinforced wood cases with shock-resistant linings. NKM provides secure transport over long distances during this way. Custom packaging service is specifically designed for such fragile ceramics, allowing you to avoid product damage, reducing loss rates.
Resource
Download detailed product specifications, technical data and more. Access all the information you need.
Alumina Boat Specifications
See the detailed datas of Newthink alumina ceramic boats for sintering, calcination, and semiconductor processing.
- Properties
- Common Shapes of Alumina Boat
| Property | Value Range | Notes |
| Purity (Al₂O₃ content) | 95% – 99.8% | Higher purity offers better thermal and chemical resistance. |
| Density | 3.7 – 3.92 g/cm³ | Higher density indicates better structural integrity. |
| Flexural Strength | 55 – 60 Kpsi | Indicates resistance to bending under load. |
| Compressive Strength | 300 – 330 Kpsi | Resistance to deformation under compressive load. |
| Hardness | 13.8 – 18 HV (GPa) | Higher values denote better wear resistance. |
| Thermal Conductivity | 25 – 32 W/(m·K) | Facilitates efficient heat transfer. |
| Maximum Operating Temperature | Up to 1800°C | Suitable for high-temperature applications. |
| Thermal Expansion Coefficient | 7.6 – 8.2 ×10⁻⁶ /°C | Lower values reduce thermal stress during temperature changes. |
| Dielectric Strength | 16 – 20 KV/mm | Indicates electrical insulation capability. |
| Volume Resistivity | High resistivity ensures excellent electrical insulation. |
| Shape Type | Description | Common Dimensions (mm) |
| Rectangular | Standard boat shape with flat bottom and straight sides for general-purpose use. | Length: 40–150; Width: 10–50; Height: 7–33 |
| Round Bottom | Curved bottom design to facilitate uniform heat distribution. | Length: 150; Width: 50; Height: 33 |
| With Holes | Features holes to allow gases to escape during high-temperature processes. | Varies based on specific design requirements |
| Customized Shapes | Tailored designs to meet specific application needs, including complex geometries. | As per customer specifications |
Related Products
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Resistant to high temperatures and corrosion. Suitable for high-melting-point metals melting under inert atmospheres.
Alumina CrucibleMelting and holding at high temperatures. Alumina ceramic crucible offers excellent thermal stability and product purity.
Alumina boats exhibit moderate resistance to thermal shock. To minimize the risk of cracking, it’s recommended to heat the furnace gradually.
It is easy to clean an alumina ceramic boat. Firstly, you need to wipe away the dust on the surface with a soft brush. Then use the warm water gently wash it. You can also use an ultrasonic cleaner. Finally, dry the boat thoroughly after the cleaning to avoid residue. This will help you to keep alumina boat clean without degrading its working and properties.
Due to brittleness, alumina ceramic boats should be handled carefully. Checking for small cracks before use. Avoiding overloading to prevent uneven heating. Proper handling and gradual temperature changes help maintain the integrity of the Al2O3 boats.
The main advantages of alumina ceramic boats are its excellent high-temperature resistance and mechanical strength. Alumina boats can work under high-temperature and high-pressure environment. Meanwhile, alumina has strong corrosion resistance to most chemicals. Good thermal conductivity makes it can transfer heat effectively. Moreover, compared to other ceramics, alumina is cheaper, bringing cost-effectiveness. All of these properties making alumina boats popular in many applications.
While alumina boats are chemically stable, they should be stored in a clean, dry environment to prevent contamination. Avoiding exposure to sudden temperature changes and mechanical shocks during storage. This will help preserve their structural integrity and prolong service life.
Alumina boats are suitable for the evaporation processes that need high-temperature resistance and chemical stability. For example, vacuum evaporation coating processes for copper, gold, silver and other metals. Alumina boat can maintain its properties. They will not corrosed by molten metals.
