Alumina Boat

Purity: 95%, 96%, 99%, 99.5%, 99.7%, 99.95%

Custom sizes and standard sizes in stock
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Competitive Price

Alumina Boat is a high-performance container primarily made of high-purity aluminum oxide (Al2O3) 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, we can supply high-quality alumina boats with various specifications and competitive prices, offering customized solutions to meet specific requirements.

Or email us at sales@heegermaterials.com.

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

Alumina Boat is made primarily from high-purity aluminum oxide with rare additives, sintered at a high temperature of 1700℃ to get the 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. Advanced Ceramics Hub 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

High-Temperature Resistance: Alumina boat withstands up to 1700°C, ideal for extreme conditions.
Chemical Stability: The alumina boat resists acids, bases, and molten substances.
Thermal Shock Resistance: The alumina boat can tolerate rapid temperature changes without cracking.
High Purity: The alumina boat minimizes sample contamination, perfect for precision experiments.
Durability: The alumina boat has high hardness and wear resistance to ensure a long service life.

Alumina Boat Applications

High-Temperature Sintering: Used in sintering ceramics, metal powders, or composite materials.
Heat Treatment: For annealing or heat-treating samples in labs or industries.
Material Testing: To test melting points, heat resistance, or chemical stability of materials.
Chemical Reactions: Serves as a container for substances in high-temperature chemical experiments.
Electronics Industry: Applied in thermal processing and deposition of semiconductors or thin films.

Electrical and Electronic Area
High-temperature Lab
High-temperature Furnaces
Aerospace

Alumina Material Properties

Material	Unit	95% Al2O3	96% Al2O3	99% Al2O3	99.5% Al2O3	99.7% Al2O3	99.95% Al2O3
Density	g/cm³	3.7	3.7	3.85	3.9	3.95	3.98
Bending Strength (20℃)	Mpa	300	300	330	360	380	500-600
Compressive Strength (20℃)	Mpa	2000	2000	2000	2350	2000	3500
Young’s Modulus (20℃)	Gpa	270	275	370	370	380	400
Fracture Toughness (20℃)	MPam^½	3.5	3.5	4	4	4	4.5
Poisson’s Ratio(20℃)	\	0.2	0.22	0.22	—	0.23	0.23
Mohs Hardness(20℃)	HRA	8.0-8.5	8.0-8.5	8.5-9.0	9.0	9.0-9.5	9.0-9.5
Vickers Hardness (HV1)	kg/mm²	1600	1600	1600	1650	1750	1800

Material	Unit	95% Al2O3	96% Al2O3	99% Al2O3	99.5% Al2O3	99.7% Al2O3	99.95% Al2O3
Thermal Expansion Coefficient (25-300 ℃）	10^-6K^-1	6.5	6.5	7.6	7.2	7.2	7.5
Thermal Conductivity (20℃)	W/mk	20	25	27.5	32	32	45
Thermal Shock Resistance	△T·℃	200	200	200	250	—	400
Specific Heat Capacity	J/g·k	—	—	0.79	0.78	0.79	0.80
Max Operating Temperature (Oxygen Condition)	℃	1600	1600	1650	1650	1700	1750

Material	Unit	95% Al2O3	96% Al2O3	99% Al2O3	99.5% Al2O3	99.7% Al2O3	99.95% Al2O3
Volume Resistivity (20℃)	Ω·cm	10¹⁴	10¹⁴	10¹⁴	10¹⁴	10¹⁴	10¹⁴
Dielectric Strength	KV/mm	10	10	10	15	15	16
Dielectric Constant (1 MHz, 25℃)	\	9	9	9.1	9.9	9.9	9.9
Dielectric Loss Tangent (1MHz, 20℃)	tanδ	3*10^-4	2*10^-4	3*10^-4	1*10^-4	1*10^-4	1*10^-4

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Semiconductor parts
Shot blast nozzles
Thermocouple tubes
Tap plates
Valve seats
Wear components
Wire and thread guides
Ballistic Armor

Alumina Ceramic Machining

Alumina ceramics are produced through methods such as injection molding, die pressing, isostatic pressing, slip casting, and extrusion. After sintering and densification, machining requires diamond grinding techniques. Advanced Ceramic Hub utilizes cutting-edge green and biscuit machining technology to produce more complex components with traditional methods. Our advanced machining center includes drilling, grinding, milling, polishing, sawing, tapping, threading, and turning, enabling the manufacture of alumina ceramic components with tight tolerances and high complexity. During the machining process, 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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To customize your alumina boat, please provide the following details:

Dimensions: Length × Width × Height.
Shapes: Rectangle, Boat, or customized.
Purity of the material (95%, 96%, 99%, 99.7%, 99.95%, etc.)
Tolerances: Specify the required tolerances.
Surface Finishes: Polished, rough, etc.
Quantity of the boats you need
Alternatively, you can provide a drawing with your specifications.

Once we have these details, we can provide you with a quote within 24 hours.

We carry a wide variety of alumina products in stock, and for these, there is generally no minimum order requirement. However, for custom orders, we typically set a minimum order value of $200. The lead time for stock items is usually 1-2 weeks, while custom orders usually take 3-4 weeks, depending on the specifics of the order.

Alumina ceramics is a high-performance ceramic material composed of alumina with a purity ranging from 90%~99.9%. It has excellent heat resistance, corrosion resistance, and high hardness, commonly used in industrial components, electronic substrates, and medical devices.

Alumina ceramics offers advantages including high strength, wear resistance, high-temperature tolerance (up to 1700 ℃), excellent electrical insulation, and chemical stability, performing exceptionally in harsh conditions.

Alumina boats are widely used in high-temperature applications due to their excellent thermal and mechanical properties. The maximum temperature they can withstand depends on the alumina content and the specific operating conditions.

High-purity alumina (99% or above): It can withstand temperatures up to 1750°C in both oxidative and reductive atmospheres. For short-term use, it can endure temperatures up to 1800°C.
Lower-purity alumina (e.g., 85%): Suitable for short-term use at temperatures up to 1400°C, and recommended for long-term use in stable environments with slow temperature changes.

Advanced Ceramic Hub, established in 2016 in Colorado, USA, is a specialized supplier and manufacturer of graphene products. With extensive expertise in supply and export, we offer competitive pricing and customized solutions tailored to specific requirements, ensuring outstanding quality and customer satisfaction. As a professional provider of ceramics, refractory metals, specialty alloys, spherical powders, and various advanced materials, we serve the research, development, and large-scale industrial production needs of the scientific and industrial sectors.

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Alumina Boat

Alumina Boat

Alumina Boat Data Sheet

Alumina Boat

Alumina Boat Specifications

Alumina Boat Advantages

Alumina Boat Applications

Alumina Material Properties

Physical Properties:

Applications:

Physical Properties:

Applications:

Physical Properties:

Applications:

Physical Properties:

Applications:

Alumina Ceramic Machining

Alumina Ceramic Packaging

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Alumina Boat

Alumina Boat Data Sheet

Alumina Boat

Alumina Boat Specifications

Alumina Boat Advantages

Alumina Boat Applications

Alumina Material Properties

Physical Properties:

Applications:

Physical Properties:

Applications:

Physical Properties:

Applications:

Physical Properties:

Applications:

Alumina Ceramic Machining

Alumina Ceramic Packaging

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Get A Quote

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