Alumina Boat
Alumina Boat
Purity: 95%, 96%, 99%, 99.5%, 99.7%, 99.95%
- Custom sizes and standard sizes in stock
- Quick Lead Time
- Competitive Price
Alumina Boat is a high-performance container primarily made of high-purity aluminum oxide through high-temperature sintering. It is widely used in high-temprature sintering, melting experiments, and material analysis. As a leading supplier and manufacturer of premium alumina products, Shanghai Yuepeng utilizes advanced machining centers to produce high-quality alumina boats for a wide range of applications.
Alumina Boat Data Sheet
| Reference Code: | HM1981 |
| Purity: | 95%, 96%, 99%, 99.5%, 99.7%, 99.95% |
| Shape: | Rectangle, Boat |
| Color: | White or Ivory |
| Density: | 3.7-3.98 g/cm3 |
Alumina Boat Description
Alumina Boat is made primarily from high-purity aluminum oxide with rare additives, sintered at a high temperature of 1700℃ to get a completely dense product. They have excellent wear resistance, high-temperature stability, thermal shock resistance, chemical stability, and high hardness. It has a wide application due to its versatility and low material cost. Shanghai Yuepeng can supply customized solutions for shapes and dimensions to meet diverse industrial and research requirements.
Alumina Boat Specifications
Advanced Ceramics Hub can offer high-precision alumina boats with various shapes and dimensions suitable for different applications, such as high-temperature experiments and material sintering. We can also provide customized services based on specific drawings to meet unique requirements. The regular specifications are as follows:
| Capacity (ML) | Length (mm) | Width (mm) | Height (mm) |
|---|---|---|---|
| 1 | 30 | 6 | 7 |
| 1 | 50 | 11 | 7 |
| 1.5 | 40 | 10 | 8 |
| 2.5 | 50 | 12 | 10 |
| 3 | 50 | 12 | 9 |
| 5 | 70 | 14 | 10 |
| 5 | 75 | 15 | 10 |
| 10 | 90 | 17 | 11.5 |
| 10 | 75 | 20 | 12 |
| 15 | 100 | 20 | 13 |
| 20 | 105 | 22 | 14.5 |
| 25 | 100 | 25 | 15 |
| 50 | 137 | 27 | 21 |
| 50 | 100 | 40 | 18 |
| 100 | 125 | 60 | 20 |
| 150 | 150 | 70 | 21 |
| 250 | 180 | 80 | 25 |
| 400 | 200 | 100 | 28 |
| 750 | 210 | 110 | 30 |
Alumina Boat Advantages
- Excellent Electrical Insulation: Alumina boats provide high electrical resistivity, making them suitable for use in electronic and high-temperature testing environments.
- High-Temperature Stability: They can withstand temperatures up to 1700 °C without warping or melting, ensuring reliability in thermal processing.
- Outstanding Wear Resistance: With high hardness and mechanical strength, alumina boats maintain durability even under repeated use in demanding conditions.
- Strong Chemical Resistance: Alumina boats resist corrosion from acids, alkalis, and other aggressive chemicals, making them dependable in harsh laboratory and industrial settings.
- Superior Thermal Shock Resistance: They tolerate rapid heating and cooling cycles without cracking, ensuring consistent performance during repeated thermal cycling.
Alumina Boat Applications
- Material Sintering: Used in high-temperature furnaces for sintering powders, ceramics, and metals thanks to excellent thermal stability.
- Chemical Analysis: Applied in laboratory experiments for heating and evaporating chemicals, where resistance to acids and alkalis is required.
- Thin Film Deposition: Utilized as containers for source materials in PVD and CVD processes, providing purity and resistance to contamination.
- Thermal Treatment of Metals: Employed in annealing, melting, and alloying of metals under controlled atmospheres due to high temperature and wear resistance.
- Powder Processing: Commonly used for calcination and roasting of rare earths, oxides, and other powders in both research and industrial production.
Chemical Analysis
Material Sintering
Powder Processing
Thermal Treatment of Metals- Thin Film Deposition
Alumina Material Properties
Alumina Material Grades
It has a very high purity (99.95%) grade of Alumina (Aluminum Oxide) exhibiting an exceptional combination of mechanical and electrical properties. It features very high hardness, exceptional electrical resistivity, high-temperature mechanical stability and strength in addition to corrosion resistance and bio/chemical inertness.
Its high-temperature stability and electrical stability make it particularly suitable for high-temperature applications such as high voltage/frequency insulators, heating elements supports, etc
Physical Properties:
- Color: White
- Density: 3.98 g/cm3
Applications:
- High-temperature electrical insulators
- Very high voltage/frequency insulators
- Machine components where high wear resistance
is required in an oxidizing environment - Precision shafts in high-wear condition
- Unlubricated (vacuum) or gas/water lubricated
high speed sliding bearings - Shot blast nozzles
- Abrasive flow deflector plates/cones
- Valve seats
- Wire guides
It’s a high-purity grade of Alumina (Aluminum Oxide) and one of the high-performance grades in this range of materials. It features a 99.7% purity Alumina base material that provides a superior set of mechanical and electrical properties while maintaining a reasonable cost. It is a very hard-wearing technical ceramic offering and is ideally suited to a wide range of industrial applications where mechanical and electrical performance is of the essence and the material needs to perform adequately in aggressive environments.
It can be machined in the “green state”- that is before sintering takes place, thus ensuring a large variety of shapes and sizes. It can also be diamond ground to tight tolerances in the fully sintered state using diamond grinding.
Physical Properties:
- Color: Ivory
- Density: 3.9 g/cm3
Applications:
- Electronic components & substrates
- High-temperature electrical insulators
- High voltage insulators
- Laser tubes
- Machined components
- Mechanical seals
- Precision shafts and axles in high-wear environments
- Roller and ball bearings
- Seal rings
- Semiconductor parts
- Shot blast nozzles
- Thermocouple tubes
- Tap plates
- Valve seats
- Wear components
- Wire and thread guides
- Ballistic Armor
99.5% Purity Alumina is a high-performance engineering material with exceptional mechanical strength, high-temperature resistance, and excellent electrical insulation properties. It is widely used in industrial equipment, electronic components, medical devices, and aerospace applications.
Physical Properties:
- Color: Ivory
- Density: 3.9 g/cm3
Applications:
- Electronic components & substrates
- High-temperature electrical insulators
- High voltage insulators
- Laser tubes
- Machined components
- Mechanical seals
- Precision shafts and axles in high-wear environments
- Roller and ball bearings
- Seal rings
- Semiconductor parts
- Shot blast nozzles
- Thermocouple tubes
- Tap plates
- Valve seats
- Wear components
- Wire and thread guides
- Ballistic Armor
99% Purity Alumina Is a premium industrial ceramic material with excellent mechanical properties, ultra-high hardness, high-temperature resistance, and insulation performance. It can maintain stable chemical and physical properties even in extreme environments, making it widely used in semiconductors, electronic components, laser technology, and aerospace.
Physical Properties:
- Color: Ivory
- Density: 3.85 g/cm3
Applications:
- Electronic components & substrates
- High-temperature electrical insulators
- High voltage insulators
- Laser tubes
- Machined components
- Mechanical seals
- Precision shafts and axles in high-wear environments
- Roller and ball bearings
- Seal rings
- Semiconductor parts
- Shot blast nozzles
- Thermocouple tubes
- Tap plates
- Valve seats
- Wear components
- Wire and thread guides
- Ballistic Armor
It is a regular purity grade Alumina (Aluminum Oxide) and it is one of the workhorses of the technical ceramics industry. It features a 96% purity Alumina base material providing a balanced “cost to quality” ratio. It is a hard-wearing technical ceramic offering an excellent combination of both mechanical and electrical properties and is ideally suited to a wide range of industrial applications where cost is of the essence, but the material still needs to perform adequately from a mechanical and electrical standpoint.
It can be machined in the “green state”- that is before sintering takes place, thus ensuring a large variety of shapes and sizes. It can also be diamond ground to tight tolerances in the fully sintered state using diamond grinding.
Physical Properties:
- Color: White
- Density: 3.75 g/cm3
Applications:
- Electronic components & substrates
- High-temperature electrical insulators
- High voltage insulators
- Laser tubes
- Machined components
- Mechanical seals
- Precision shafts and axles in high-wear environments
- Roller and ball bearings
- Seal rings
- Semiconductor parts
- Shot blast nozzles
- Thermocouple tubes
- Tap plates
- Valve seats
- Wear components
- Wire and thread guides
- Ballistic Armor
95% Purity Alumina is an economical and practical engineering material. Its slightly lower alumina content reduces production costs while maintaining decent wear resistance and processing flexibility. It is commonly used in mechanical parts, electrical insulators, and wear-resistant bushings, offering an excellent cost-performance balance.
Physical Properties:
- Color: White
- Density: 3.7 g/cm3
Applications:
- Electronic components & substrates
- High-temperature electrical insulators
- High voltage insulators
- Laser tubes
- Machined components
- Mechanical seals
- Precision shafts and axles in high-wear environments
- Roller and ball bearings
- Seal rings
- Semiconductor parts
- Shot blast nozzles
- Thermocouple tubes
- Tap plates
- Valve seats
- Wear components
- Wire and thread guides
- Ballistic Armor
Alumina Ceramic Machining
Advanced ceramics are formed using methods such as injection molding, die pressing, isostatic pressing, slip casting, and extrusion. After sintering and densification, machining requires diamond grinding. Shanghai Yuepeng applies advanced green and biscuit machining to achieve complex shapes beyond traditional methods. Our machining center offers drilling, grinding, milling, polishing, sawing, tapping, threading, and turning, enabling the production of alumina ceramic components with high precision and complexity. During machining, the following precautions should be observed:
- Shrinkage Control: Alumina ceramics shrink by about 20% during sintering, requiring dimensional adjustments in the green body stage.
- Tolerance Control: Precise tolerances are unachievable in the green or pre-sintered state; fine machining should follow sintering.
- Diamond Grinding: Post-sintering, high-hardness alumina requires diamond grinding, as conventional methods fall short.
- Tool Selection: Diamond-coated tools or grinding wheels are essential to handle ceramic hardness and prevent tool damage.
- Temperature Control: Strict temperature management during sintering prevents cracking or deformation.
- Stress Management: Excessive stress during machining must be avoided to prevent brittle failure.
- Cutting Speed and Feed Rate: Controlled speeds and feeds ensure quality and extend tool life.
- Surface Treatment: Post-machining polishing removes defects, enhancing performance and appearance.
Alumina Ceramic Packaging
Alumina Ceramic products are typically packaged in vacuum-sealed bags to prevent moisture or contamination and wrapped with foam to cushion vibrations and impacts during transport, ensuring the quality of products in their original condition.
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