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Overview of High Temperature 99% Al2O3 Purity square Shape Alumina Ceramic Boat Crucible
High Temperature 99% Al2O3 Purity square Shape Alumina Ceramic Boat Crucible is precision-engineered vessels made from 99%+ pure aluminum oxide (Al₂O₃). Designed for high-temperature and corrosive environments, they are widely used in semiconductor processing, heat treatment, CVD/PVD applications, and laboratory experiments. Their superior thermal and chemical stability ensures reliable performance under extreme conditions.
Key Features of High Temperature 99% Al2O3 Purity square Shape Alumina Ceramic Boat Crucible
Extreme Temperature Resistance – Stable up to 1800°C with low thermal expansion.
Superior Chemical Resistance – Resists acids, alkalis, and aggressive gases.
High Mechanical Strength – Durable and resistant to thermal shock.
Precision Design – Smooth surfaces & uniform dimensions for consistent processing.
Customizable Shapes & Sizes – Available in standard and tailored configurations.

(High Temperature 99% Al2O3 Purity square Shape Alumina Ceramic Boat Crucible)
Specifications of High Temperature 99% Al2O3 Purity square Shape Alumina Ceramic Boat Crucible
This alumina ceramic boat crucible is square shaped. It’s made from high purity 99% Al2O3 alumina oxide ceramic. This material option provides it superb high temperature performance. It stands up to constant consume to 1700 ° C. Short term usage can take care of even greater temperatures.
The crucible features exceptional thermal stability. It handles unexpected temperature adjustments well. This thermal shock resistance is essential for fast heating or cooling cycles. It avoids fracturing under anxiety.
Chemical resistance is a major advantage. The crucible will not respond with many chemicals. Acids, bases, and molten salts do not harm it conveniently. This inertness maintains your materials pure during processing. Contamination risks are really reduced.
Mechanical toughness is high. The crucible is tough and put on resistant. It withstands abrasion effectively. Its framework is dense. This density decreases porosity. Leakage is much less likely. It uses great electrical insulation residential or commercial properties as well.
The square shape provides useful benefits. It maximizes useful space inside furnaces. Suitable multiple boats together is reliable. Packing and dumping examples is simple. The style is simple, useful.
This crucible fits requiring high temperature tasks. Semiconductor handling utilizes it. Lab evaluation relies upon it. Warm treatment processes gain from it. Metallurgy and powder sintering applications require it. It’s a dependable workhorse for rough environments.
Dimensions are accurate. Customized dimensions are frequently offered. Surface surface is smooth. This level of smoothness help cleaning up. It also aids avoid material sticking.

(High Temperature 99% Al2O3 Purity square Shape Alumina Ceramic Boat Crucible)
Applications of High Temperature 99% Al2O3 Purity square Shape Alumina Ceramic Boat Crucible
These square alumina ceramic boat crucibles deal with extreme heat unbelievably well. Made from 99% pure Al ₂ O THREE, they withstand chemical attack and remain solid at temperature levels where other materials stop working. Their square form is a functional design selection. It allows you load a lot more items inside effectively contrasted to round crucibles. This conserves important heater area. The flat sides likewise make handling and placing them much easier with devices.
You find these crucibles working hard in semiconductor production. They bring silicon wafers through high-temperature steps like diffusion, oxidation, and annealing. The pure alumina ensures no unwanted contamination affects the delicate wafers. In products study labs, these watercrafts are essential. Scientists use them for sintering ceramic powders, examining brand-new metal alloys under warm, and studying crystal growth. The product purity keeps experiments exact.
Warm therapy procedures depend on them too. They hold steel parts securely throughout processes like brazing or sintering. The crucible does not respond with the steels or the gases used. Their stability at high warm makes them perfect for carrying examples in and out of heating systems repeatedly. They keep their form and stamina cycle after cycle. This longevity conserves money gradually.
Phosphor production for LEDs and screens uses these square watercrafts. The process needs high temperatures and a clean setting; the alumina supplies both. Even in harsh settings like powder metallurgy or catalyst research, they execute dependably. They stand up to thermal shock surprisingly well when warmed or cooled very carefully. Selecting the best size crucible for your details load is important for the best results.
Company Profile
Alumina Technology Co., Ltd,. We focus on the research and development, production and sales of alumina products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2005, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.
Our products includes but not limited to Alumina Boat, Alumina Crucible, Alumina Dish, Alumina Foam Filter, Alumina Plate, Alumina Rod, Alumina Bar, Alumina Balls, Filter Alumina, Nano Alumina Powder, Spherical Alumina Powder, ect. please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods
T/T, Western Union, Paypal, Credit Card etc.
Shipment Methods
By air, by sea, by express, as customers request.
5 FAQs of High Temperature 99% Al2O3 Purity square Shape Alumina Ceramic Boat Crucible
Here are 5 common questions about our High Temperature 99% Al2O3 Purity Square Shape Alumina Ceramic Boat Crucible:
What’s the maximum temperature this crucible can handle?
This crucible withstands temperatures up to 1700°C (3092°F) continuously. It’s designed for extreme heat in furnaces and kilns. Its high purity alumina construction ensures stability.
Why is the square shape useful?
The square shape fits efficiently inside standard tube furnaces. It maximizes usable space on the heating surface. You can arrange multiple samples side-by-side easily. This shape is practical for many lab and production processes.
How pure is the Al2O3 material?
The alumina purity is 99%. This high purity minimizes contamination of your samples. It ensures consistent results during high-temperature processing. Low impurity levels are crucial for sensitive materials.
How do I clean this crucible?
Cleaning is straightforward. Soak the crucible in a mild acid solution, like diluted hydrochloric acid. Rinse it thoroughly with deionized water afterwards. Dry it completely before the next use. Avoid abrasive scrubbing to prevent surface damage.
Is this crucible resistant to thermal shock?
Yes, it offers good thermal shock resistance. It handles rapid heating and cooling cycles reasonably well. Avoid sudden extreme temperature changes whenever possible. Gradual heating and cooling extends the crucible’s lifespan.

(High Temperature 99% Al2O3 Purity square Shape Alumina Ceramic Boat Crucible)
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