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What Are The Excellent Properties Of Alumina Ceramics

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Alumina ceramics is a material with alumina (AL2O3) as the main body, which is used in thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength and high temperature resistance.

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It should be noted that ultrasonic cleaning is required. Alumina ceramics are a versatile ceramic. Because of the superior performance of alumina ceramics, the application in modern society has become more and more extensive, meeting the needs of daily use and special performance. In the process of machining ceramics, edge chipping is easy to occur.This is a problem that all machining factories will face.

How To Solve This Problem?

Be-Cu ceramics has three methods of materials, which effectively solve the problem here. The first is to leave some expectations when making the hole, and then grind the remaining material with a grinder when creating a certain depth.

The second is to change the tool with a smaller diameter during machining, using a spiral down The knife is ground layer by layer, but this method requires the tool to go down at a relatively slow speed, in other words, the efficiency is low, and the advantage is that the inner wall of the hole is smooth and not rough; first use a tool with a smaller diameter to punch a hole, then On the basis of the hole that has been drilled, it is enough to expand to a suitable size. The disadvantage of this method is that there will be lines on the inner wall of the hole.

Alumina Ceramics Are Divided Into Two Types: High-Purity Type And Ordinary Type.

• High-purity alumina ceramics are ceramic materials with an Al2O3 content of more than 99.9%. Because their sintering temperature is as high as - °C and the transmission wavelength is 1~6 μm, they are generally made into molten glass to replace platinum crucibles: using its Light transmittance and alkali metal corrosion resistance are used as sodium lamps; in the electronics industry, they can be used as integrated circuit substrates and high-frequency insulating materials.
• Ordinary alumina ceramics are divided into 99 ceramics, 95 ceramics, 90 ceramics, 85 ceramics and other varieties according to the content of Al2O3. Sometimes those with Al2O3 content of 80% or 75% are also classified as ordinary alumina ceramics. Among them, 99 alumina ceramic materials are used to make high-temperature crucibles, refractory furnace tubes and special wear-resistant materials, such as ceramic bearings, ceramic seals and water valve plates; 95 alumina ceramics are mainly used for corrosion-resistant and wear-resistant parts; 85 ceramics Because part of talc is often mixed into it, the electrical properties and mechanical strength are improved, and it can be sealed with metals such as molybdenum, niobium, and tantalum, and some are used as electric vacuum devices.

Then I will share with you the characteristics and classification of alumina ceramics.Be-Cu Ceramics is a professional supplier of precision ceramics products, with a complete set of precision ceramics product development, molding, sintering, machining and testing. The ability to produce various precision ceramic products can be customized according to customer needs according to drawings and samples.

About China Advanced Ceramic CNC Machining Company - Be-Cu

Manufacturer of precision machined components. Ceramic cnc machining components include high dielectric strength, electrical & corrosion resistance, & non-porous & non-shrinking properties.Manufacturer of high temperature fabricated and machinable ceramics including alumina, glass-ceramic, alumino-silicate, boron nitride and zirconium phosphate. Adhesives, coatings and potting compounds to degrees F,Air firing services for ceramics up to degrees C also available. Products include insulators, guides, washers, tubes, blocks, & rods for thermal, electrical, corrosion exposure, structural, wear, & semi-conductor operations. Services include machining to tolerances of +/- ., ultrasonic core drilling, centerless grinding, milling, & ID & OD threading.Surface grinding, dicing, OD (outer dia.) grinding, ID (inner dia.) grinding, centerless grinding, hole drilling, jig grinding, lapping, honing & polishing service are also available. Diamond grinding with dimensional tolerances of 5 microns & surface finishes of 0.2 microns (8 micro-in.) can be performed.Blanket orders and AutoCAD files & other 3d files accepted.Contact us for your machining ceramic project!

Ceramics are available in many different types, and so are their applications in the industry. Generally, in terms of applications, ceramics can be grouped as traditional ceramics and advanced ceramics. Traditional ceramics, on the one hand, are made from basic materials like clay, silica, and feldspar. Examples include bricks and porcelain articles. However, advanced ceramic materials are made up of very pure compounds, such as aluminum oxide (Al2O3), silicon nitride (Si3N4), and silicon carbide (SiC). Ceramics are applied in glasses, clay products, refractories, cement, and advanced ceramics. In this article, we&#;ll look at some common applications of ceramics, including advanced ceramics in daily life, as well as some common ceramics.

Common Applications of Ceramic Materials

Glasses

Glasses constitute a major application of ceramic materials in our daily life. Starting from windows, glass containers, mirrors, and lenses to glass mugs and decorations, glasses are a common group of ceramics and they offer many benefits known to man. Glasses are typically non-crystalline silicates that contain other oxides, such as calcium oxide, sodium oxide, potassium oxide, and aluminum oxide. These components influence the properties and color of the glass. glass properties and its color.

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Glass-ceramics are typically polycrystalline materials manufactured by controlled crystallization of base glass. There are different types of ceramic glasses, from the glass jars in your kitchen to the bottles holding your drugs, you&#;ll find a wide variation in the use of ceramics as glasses in your home.

Refractories

Another common application of ceramics is in refractories. These are ceramic materials designed to withstand extreme temperatures (typically above 1,000°F), which are found in modern manufacturing. Refractories serve as heat-resistant insulators lining the hot surfaces found in a number of industrial processes. Refractories can withstand these very high temperatures without melting or decomposing. Besides, they are inert in such environments, meaning that they will not interact with the reacting components. and their inertness in severe environments. Refractories are made from both natural and synthetic materials. This can be nonmetallic or a combination of different substances, such as alumina, bauxite, dolomite, magnesite, silicon carbide, zirconia, etc. Generally, refractories are classified into two broad categories: preformed shapes (also known as specialty and monolithic refractories) and refractory ceramic fibers. The refractory ceramic fibers are similar to residential insulation. However, they insulate at relatively higher temperatures.

Abrasive Ceramics

As the name implies, abrasives are hard substances used in handling or cutting out other softer materials. Common examples of abrasive ceramics are diamond, silicon carbide, tungsten carbide, silica sand, aluminum oxide, etc. They also have refractory properties, which makes them resistant to extreme situations, such as high temperatures. Abrasive ceramics are tough and have high wear resistance.

Clay Products

Clay is a common and familiar form of ceramic raw material used to produce several important items for both home and office use. Clay products are found in great abundance because they are easy to make and often come out really beautiful when finished. It is found in great abundance and popular because of the ease with which products are made.

Clay products can be any of the following and even more: porcelain, pottery, chinaware, roofing tiles, fired bricks, terra-cotta, brick veneer, sculptured brick, and sewer pipes, are mainly two kinds. All these are broadly classified into two kinds of clay products: structural products and whiteware.

Cement

Cements is a category of ceramic applications that encompass products with elements of cement, such as limestone, plaster of Paris, (PoP), and actual cement. Cement is known to form slurries, which quickly solidify when mixed with water. This means that any shape can be formed from Cement. The materials are typically also utilized to bond construction bricks. Note that concrete is not exactly ceramic since it is a combination of sand and cement. The mixture only solidifies upon the addition of water the cement reacts, forming a ceramic-like structure that holds the composite particles together. The strength of the concrete is gained from a reaction between the water and the cement.

Advanced Ceramics

Other than traditional ceramics, what we have is advanced ceramics, which have been manufactured for specific applications: Advanced ceramics are usually explored for their electrical, magnetic, and optical properties. They are used in heat engines, nuclear reactor reactors, armor plates, and electronic packaging. Examples of advanced ceramic materials include titanium oxide (TiO2), titanium boride (TiB2), uranium oxide (UO2), diamond, aluminum nitride (AlN), yttrium aluminum garnet (YAG, Y3Al5O12), zirconia (ZrO2), Silica (SiO2), silicon carbide (SiC), aluminum oxide, etc. There are several other applications or uses of ceramics in our daily life. It is logical to say that ceramic plays a more role as raw material in manufacturing industries and a host of other domestic fabrication processes.

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