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2019-10-29
Minerals containing Alumina represent some 15% of the earth's crust. It is therefore an abundant material and virtually inexhaustible, unlike raw materials for many alloys developed for special applications. The combination of high thermal conductivity, low thermal expansion and high compressive strength leads to good thermal shock resistance, so alumina is suited to furnace use such as crucibles,...
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2019-11-01
With developments of electronics, heat radiation of circuit boards and components are also showing an increasing level, which result in more and more studies on heat radiation materials for high efficiency. Alumina is very suitable for fabricating heat radiation materials because of its high thermal conductivity and low electrical conductivity. In particular, if alumina rods are lined up in the di...
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2022-07-01
Alumina ceramic is a kind of ceramic product with aluminum oxide as the main component. In this article, influence of forming method and processing details on hardness and abrasion of alumina ceramics are briefly introduced. * Forming Methods of Alumina Ceramic 1.Dry Pressing: This type of forming method is only suitable for product with simple-structure, whose inner thickness is larger than 1mm a...
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2022-08-03
Alumina ceramic crucible is a vessel or melting pot, which is made of refractory materials. It is mainly used for evaporation, concentration or crystallization process of solutions and firing process of solids. Table of Contents: Alumina Ceramic Crucible Instructions Application methods of alumina ceramic crucibles Crucible and Lid Heating with Crucible Support Apparatus Cooling Handling wit...
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2022-09-01
Alumina ceramics are sintered under the temperature of 1450~1800℃, which contain aluminum oxide as the main raw material and 6~30% of sintering additives, such as clay, MgO, CaO, TiO. The purer alumina ceramics are, the better performance can be obtained, however the manufacturing of alumina ceramics also becomes more difficult with aluminum oxide proportion increases. Pure alumina ceramic can be ...
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2022-09-26
Aluminum oxide ceramic is a kind of ceramic material whose main crystalline phase is α-Al2O3, which is the most stable and also the only Al2O3 crystalline form that exists in the nature. For the features of high melting point, excellent hardness, outstanding corrosion resistance and dielectric property, α-Al2O3 ceramic is widely used as material for industrial parts, and the manufactured pr...
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2022-10-14
High Temperature and Corrosion Resistance Alumina ceramic is applied as refractory materials for high temperature furnace owing to its good performance of high temperature resistance, such as lining(wall or tubes) of ironmaking blast furnaces. It shows good performance of corrosion resistance, therefore Al2O3 ceramic can be applied as slide gate for molten steel pouring. It is also used for manufa...
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2022-10-25
After sintering and cooling, the whole manufacturing process of some alumina ceramic products does not finish. In order to fulfil further requirements of application, these products need to be subjected to machining processes, such as specification adjustment and polishing, etc. Polishing details of alumina ceramic that need to be noticed are listed below. 1.Applying laser cutting proces...
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2023-01-09
Alumina tubes｜Why They Can Benefit Your Project? Alumina tubes are made from aluminium oxide powder which is mixed with organic binders and plasticizers. The mixture is pressed into a tube shape and fired at very high temperatures. After cooling, the tubes are ready to use. They are very resistant to heat. The tube walls are thin enough to allow good thermal conduction. They have many advantages o...
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2023-01-09
Multi-Bore Alumina Ceramic Tubes What Are They? Multi-Bore Alumina Ceramic Tubes, also known as Multi-Bore Tubing, are made up of alumina powder mixed with binder and pressed into cylindrical shape. The material is sintered at very high temperatures to form a dense monolithic structure. The bores are drilled through the tube center using a special drill bit. Multi-bore alumina tube is a type of ce...
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2022-12-14
Alumina Ceramic Tube｜How Do I Clean It? Alumina tubes are used in many industries, including the chemical industry, where they are used to purify water. The process involves heating the alumina to high temperatures, which causes the aluminium oxide inside to react with the impurities in the water. This reaction produces pure water. The most common way to clean alumina tubing i...
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2023-01-03
Alumina Ceramic Crucible It is one of the most common laboratory crucibles. Crucibles are containers that can withstand very high temperatures and are used to melt metals, glass, and pigments. They are usually made of materials with a higher melting point than those being melted. The crucible material must also have good strength even if it's extremely hot. Alumina(aluminum oxide) is an ideal mate...
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2022-12-19
Alumina Tubes for High Temperature Ceramic tubes were first used in ancient Egypt around 3000 BC. They were made by pouring molten clay into a mould and allowed air to escape through holes on the bottom. The clay would cool and harden inside the mould, creating a hollow cylinder. The first recorded use of alumina ceramics dates back to the year 535 BC when Chinese alchemists discovered how to prod...
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2022-12-20
Cleaning your TGA alumina crucible Make sure you're treating your TGA Alumina Crucible right with our detailed guide on the best way to clean it! Follow these 7 tips and maintain optimal quality. Cleaning your TGA alumina crucible can be a daunting task, but it's important to do an effective job and maintain optimal quality. Follow this guide to learn ...
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2022-12-22
Thermocouple Protection Tubes -- What Are They? Benefits & Uses Explained Are you curious about the benefits and uses of thermocouple protection tubes? Discover what they are, why they are important. Thermocouple protection tubes are essential components of any thermocouple-based temperature monitoring system. They play an important role in keeping the device accura...
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2022-12-26
Working with a platinum crucible can be intimidating - but it doesn't have to be. With the right preparation and knowledge, you can safely and efficiently use your platinum crucible for any of your needs. Follow this guide for step-by-step instructions on how to use a platinum crucible from start to finish. Using a Platinum Crucible For Melting And Fusion A platinum crucible is a container ...
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2023-01-09
Silicon Carbide Tubes They have become popular in the industry due to their many advantageous properties. Made from a unique combination of silicon and carbon, these tubes are noted for their strength, thermal conductivity and resistance to wear and corrosion. In this article, we look at the different uses of silicon carbide tubes and their advantages. What Are They? Silicon carbide tubes are high...
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2023-01-12
Zirconia Tubes and Rods They are an efficient, reliable material for industrial applications. These sturdy materials are made from zirconium dioxide, offering a range of benefits such as resistance to corrosion, heat and wear. Learn more about the various uses and advantages of zirconia tubes and rods here! What is Zirconia? Zirconia is a material made from zirconium dioxide, ...
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2023-03-08
Ceramic boat for tube furnace A combustion boat is a laboratory apparatus used in various scientific and industrial applications to process materials at very high temperatures. These combustion boats are typically made of ceramic, and come in a variety of shapes and sizes depending on their intended use. Combustion boats are important instruments used to study the combust...
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2023-04-26
Alumina Bushings They are an essential component used in electrical and industrial applications. These tiny but mighty devices are critical to the proper functioning of a range of equipment. They are made of alumina, a highly durable and heat-resistant material that makes them ideal for use in high-temperature environments. In this article, we will delve into what alumina bushings are, how they ar...
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