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Alumina granulated powder/high purity alumina powder

fine ceramics

Alumina granulated powder/high purity alumina powder

Item Number : KM-P02

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Introduction

Ordinary alumina granulated powder is alumina particles prepared by traditional processes, with a wide range of applications and good market adaptability. This material is known for its high purity, excellent thermal stability and chemical stability, and is suitable for a variety of high-temperature and conventional applications.

Features

  • High purity: Provide high-purity alumina particles to ensure its stability and performance in the application.
  • Excellent thermal stability: Maintain stable physical and chemical properties in high temperature environment.
  • Good fluidity: The alumina powder after granulation has good fluidity, which is convenient for automated production and precise batching.
  • High hardness and wear resistance: Provide high hardness and good wear resistance, suitable for applications requiring high wear resistance.

Application

  • Refractory materials: used to produce high-temperature refractory materials such as refractory bricks and refractory castables.
  • High-temperature ceramics: used to manufacture ceramic products that need to be sintered at high temperatures, such as electronic ceramics and structural ceramics.
  • Abrasives: used to manufacture abrasive products such as grinding wheels and sandpaper, providing excellent grinding performance.

Technical Parameters

  • Appearance: White or slightly colored granular material.
  • Particle size range: Usually between a few microns and hundreds of microns, can be customized according to customer needs.
  • Purity: Usually above 99%, depending on application requirements.
  • Bulk density: Provide the bulk density of the product to evaluate its performance during mixing and transportation.

Detail & Parts

Alumina granulated powder

Alumina granulated powder

Technical specifications

Al2O3(%) Embryo density (g/cm3) Particle size distribution (mesh) Bulk density (g/cm3) Firing temperature (℃) Hot holding time (h) Shrinkage (%) Porcelain density (g/cm3) Porcelain color
PZ-99 ≥99 2.0-2.2

60-200 mesh

Center diameter 140

1.0-1.1 1650 2.5-3 18±0.5 ≥3.85 Slightly yellow
PZ-95A ≥95 2.3-2.4 1.1-1.2 1630 15±0.5 ≥3.73 white
PZ-95 ≥95 2.3-2.4 1.1-1.2 1630 15±0.5 ≥3.68 Pale
16±0.5 ≥3.65 white

Shrinkage test: cylinder Φ30mm, single-side pressure 80Mpa, weight 20g, pressure: 1.2T/cm2.

Application

Serial number Product model Scope of application
1 DZ-99.5 Semiconductor components, 5G communication supporting ceramics, etc.
2 DZ-99A Ceramic plunger, bushing, photovoltaic, etc.
3 DZ-93 Electric vacuum ceramic shell and other metallized products
4 PZ-95A Water valve plate, spark plug, etc.
5 PZ-95 Fuse, relay supporting ceramics, etc.

Packaging and storage

  • Packaging: Use moisture-proof and dust-proof packaging materials such as plastic bags, cartons or ton bags.
  • Storage: It is recommended to store in a dry and ventilated warehouse to avoid contact with moisture and chemicals.

Safety Precautions

  • During operation: Wear appropriate personal protective equipment such as masks, gloves and protective glasses.
  • Waste disposal: Dispose of waste alumina granulation powder in accordance with local environmental protection regulations.

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FAQ

What Are The Common Applications Of Alumina Crucibles?

Alumina crucibles have diverse applications in industries such as metallurgy, ceramics, chemistry, and materials research. They are commonly used for high-temperature processes, including melting, calcination, and sintering of metals, alloys, and ceramics. Alumina crucibles are also utilized in the production of catalysts, glass, and advanced materials. In laboratories, they are used for sample preparation, heating, and chemical reactions. Additionally, alumina crucibles find applications in thermal analysis techniques such as differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA).

What Are High Purity Materials?

High purity materials refer to substances that are free from impurities and possess a high level of chemical homogeneity. These materials are essential in various industries, particularly in the field of advanced electronics, where impurities can significantly affect the performance of devices. High purity materials are obtained through various methods, including chemical purification, vapor-phase deposition, and zone refining. In the preparation of electronic grade single crystal diamond, for example, a high-purity raw material gas and an efficient vacuum system are necessary to achieve the desired level of purity and homogeneity.

What Are The Advantages Of Using Alumina Crucibles?

Alumina crucibles offer several advantages in high-temperature applications. Firstly, they have excellent thermal shock resistance, allowing them to withstand rapid heating and cooling without cracking. Alumina crucibles also have high chemical resistance, making them suitable for use with acids, bases, and other corrosive materials. They have low electrical conductivity, which is beneficial for preventing electrical interference in certain applications. Alumina crucibles are also inert and do not react with most substances, ensuring the purity of the materials being processed. Additionally, they have a long lifespan and can withstand repeated use at high temperatures.

How Do You Prepare Pressed Pellets For XRF?

Pressed pellets for XRF analysis are prepared by grinding the sample to a fine particle size and mixing it with a binder or grinding aid. The mixture is then poured into a pressing die and compressed at a pressure of between 15 and 35T. The resulting pellet is ready for analysis. It is important to consider the particle size of the sample, choice of binder, sample dilution ratio, pressure used for pressing, and the thickness of the pellet when designing a sample preparation recipe. Consistency in the preparation procedure is key to ensuring accurate and repeatable results.

How Should Alumina Crucibles Be Handled And Maintained?

Proper handling and maintenance of alumina crucibles are crucial to ensure their longevity and optimal performance. When handling, it is important to avoid dropping or impacting the crucibles to prevent cracking or damage. They should be stored in a clean and dry environment to avoid contamination. Regular cleaning of the crucibles is necessary to remove any residual materials or impurities. This can be done using a soft brush, mild detergent, or solvents suitable for alumina. It is recommended to preheat the crucibles before use, especially when subjected to rapid temperature changes, to prevent thermal shock. Crucibles should be inspected for cracks, erosion, or other damage, and if any issues are found, they should be replaced to maintain the quality of the materials being processed. Following the manufacturer's guidelines for maintenance and handling is essential.

What Pressure Should XRF Pellets Be?

XRF pellets should be pressed at pressures between 15 and 40 tons for 1-2 minutes to ensure that the binder recrystallizes and that there are no void spaces present in the pellet. The pressure applied by the hydraulic press should be enough for the sample to be completely compressed. The thickness of the pellet is also crucial, as it must be infinitely thick to the X-rays. Working with small particle sizes (<50µm or <75µm) is also important for effective analysis. These factors impact how well the sample binds together under pressure, which affects the analytical results.

What Is The Advantage Of XRF Pressed Pellet Technique?

The advantage of XRF pressed pellet technique is that it produces high-quality results with a higher signal-to-noise ratio, allowing for the detection of even the lightest elements. Quantifying the elemental composition without pressed pellets can lead to significant discrepancies between expected and actual values. The grinding of the sample into fine particles and compressing it into a smooth and flat XRF pellet reduces background scattering and improves the detection of emissions. Pressed pellets are also relatively quick, low-cost, and lend themselves to simple and cost-effective automation for higher throughput laboratories.
View more faqs for this product

4.7

out of

5

Exceptional durability, perfect for high-temp lab experiments.

Hiroshi Tanaka

4.8

out of

5

Superb quality, excellent chemical resistance.

Elena Müller

4.9

out of

5

Fast delivery, exceeded my expectations!

Carlos Silva

4.7

out of

5

Highly recommend for precision lab work.

Anya Petrova

4.8

out of

5

Outstanding thermal stability, reliable product.

Liam O'Brien

4.9

out of

5

Great value for money, top-notch alumina tubes.

Sophia Rossi

4.7

out of

5

Impressive wear resistance, ideal for my needs.

Mohammed Al-Farsi

4.8

out of

5

Quick shipping, product as described.

Isabella Gonzalez

4.9

out of

5

Excellent service, highly durable alumina.

Javier Hernandez

4.7

out of

5

Perfect for high-tech applications, very satisfied.

Nina Svensson

4.8

out of

5

Highly pure, great for sensitive lab setups.

Fatemah Al-Sayed

4.9

out of

5

Best alumina tubes I've used, highly recommend.

Andrei Kuznetsov

PDF - Alumina granulated powder/high purity alumina powder

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Catalog of Fine Ceramics

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Catalog of Alumina Crucible

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Catalog of High Purity Materials

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Catalog of Xrf Pellet Press

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