Introduction to Alumina Powder Spherical Aluminum Oxide for Thermal Interface Materials CAS 1344-28-1

Alumina ceramics are known for their high hardness, wear resistance, corrosion resistance, good electrical insulation and high temperature stability. According to the different alumina content, it can be divided into different grades, such as 95 porcelain, 99 porcelain, etc., among which 99 porcelain refers to ceramic materials with an alumina content of 99%. As the alumina content increases, its mechanical strength and electrical insulation properties will also increase accordingly.

Characteristics of Alumina Powder Spherical Aluminum Oxide for Thermal Interface Materials CAS 1344-28-1

High Hardness: Alumina ceramics have extremely high hardness, which makes it very wear-resistant and suitable for manufacturing abrasive tools and parts that require wear resistance.

Wear resistance: Due to its high hardness, alumina ceramics show excellent wear resistance and are suitable for manufacturing parts for long-term use.

Corrosion resistance: Alumina ceramics have good resistance to most acids and alkalis, making them widely used in the chemical industry.

Good electrical insulation: As an excellent electrical insulating material, alumina ceramics are widely used in electronic and electrical products.

High temperature stability: Ability to withstand extremely high temperatures without significant physical or chemical changes, which makes it an ideal choice for applications in high temperature environments.

Biocompatibility: In the medical field, certain grades of alumina ceramics are used to make medical devices such as artificial joints due to their good biocompatibility.

(Alumina Powder Spherical Aluminum Oxide for Thermal Interface Materials CAS 1344-28-1)

Specifications of Alumina Powder Spherical Aluminum Oxide for Thermal Interface Materials CAS 1344-28-1

This alumina powder is spherical aluminum oxide. Its CAS number is 1344-28-1. It is designed for thermal interface materials. These materials manage heat in electronics. The powder’s shape is key. It is perfectly round. This shape helps the powder flow well. It also helps the powder pack tightly. Tight packing improves heat transfer. Heat moves better through dense materials.

Particle size is very important. We control the size carefully. The sizes are consistent. Particles are mostly the same size. This avoids big gaps. Small gaps let heat flow easily. Common sizes include 5 microns, 10 microns, 20 microns, and 30 microns. You choose the size for your needs. Smaller particles fill tiny spaces. Larger particles might flow faster.

The purity is high. It is over 99.9% pure. High purity means fewer impurities. Impurities can block heat flow. They can also cause problems in the material mix. The surface area is low. Low surface area helps. It means less resin is needed to coat the particles. This keeps the thermal paste or pad from being too thick. Thick paste doesn’t spread well.

The powder has good chemical stability. It does not react easily. This makes it safe for electronics. It handles high temperatures well. Electronics get hot. The powder won’t break down. It keeps working. The color is white. This is normal for pure alumina.

Using this powder makes thermal pastes better. The paste moves heat away from chips. It stops parts from overheating. The spherical shape lowers the paste’s thickness. Thinner paste is easier to apply. It fills small gaps better. Good filling means better cooling. High purity ensures long life. The material stays effective longer. This powder is a smart choice for thermal management. It solves heat problems efficiently.

(Alumina Powder Spherical Aluminum Oxide for Thermal Interface Materials CAS 1344-28-1)

Applications of Alumina Powder Spherical Aluminum Oxide for Thermal Interface Materials CAS 1344-28-1

Spherical alumina powder is aluminum oxide with a round shape. People know it as CAS 1344-28-1. This powder is important for thermal interface materials. Thermal interface materials help move heat away from electronic parts. Electronics like computers and phones get hot. Heat can damage them. Thermal interface materials sit between hot parts and coolers. They fill tiny gaps. These gaps trap heat. Spherical alumina powder makes these materials work better.

The round shape of the powder is key. Round particles pack together tightly. Tight packing means less empty space. Heat flows easier through solid material. Air traps heat. Less air means heat moves faster. This powder has very high thermal conductivity. It moves heat well. Adding it to thermal pastes or pads boosts their performance. They transfer heat more efficiently.

Manufacturers mix this powder into gels, greases, or pads. It acts as a filler. The powder improves the thermal conductivity of the base material. Silicone grease alone doesn’t move heat fast enough. Adding spherical alumina powder fixes that. It lets heat escape quicker. This keeps electronic components cooler. Cooler parts last longer. They perform better. Overheating causes failures.

This powder is chemically stable. It doesn’t react easily. This stability is good for electronics. It won’t harm parts over time. The powder is also hard. It doesn’t break down under pressure. Using it in thermal materials ensures reliable heat transfer. It helps devices run safely and efficiently. Effective cooling prevents shutdowns.

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5 FAQs of Alumina Powder Spherical Aluminum Oxide for Thermal Interface Materials CAS 1344-28-1

Spherical alumina powder is aluminum oxide. It has a round ball shape. This shape is key for thermal interface materials. The powder helps heat move away from electronic parts. This keeps things cooler.

Why is the spherical shape so important? The round shape lets the particles pack together tightly. This means less empty space in the material. More particles touching means heat moves better. Irregular shapes don’t pack well. They leave gaps that block heat flow.

What particle sizes can you get? Several size options exist. Common sizes are 5 microns, 10 microns, and 20 microns. Sometimes larger sizes are available too. The best size depends on the specific thermal paste or pad. It also depends on the gap it needs to fill.

How does it improve thermal performance? Spherical alumina conducts heat very well. It is also very stable. It won’t break down under heat or pressure. Adding it to thermal pastes or pads makes them work much better. This leads to lower temperatures in devices. It helps electronics run reliably.

Is it safe to handle? Alumina powder is generally safe. It is chemically stable. It doesn’t react easily. Always wear gloves and a dust mask. Avoid breathing in the fine powder. Keep it away from your eyes. Store it in a dry place.

(Alumina Powder Spherical Aluminum Oxide for Thermal Interface Materials CAS 1344-28-1)