What are the properties of aluminum nitride？

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Overview of Aluminum Nitride AlN Powder

Aluminum nitride AlN Powder is a ceramic material with excellent comprehensive properties, and its research can be traced back to more than 100 years ago. Discovered by F. Birgeler and A. Gutter in 1862, first synthesized by JW Mallets in 1877, but had no practical application for the next 100 years. It is only used as a fertilizer as a nitrogen fixer.

 Aluminum nitride is a covalent compound with low self-diffusion coefficient and high melting point, making it difficult to sinter. It was not until the 1950s that the first aluminum nitride ceramics were successfully manufactured and used as refractories in the smelting of pure iron, aluminum and aluminum alloys. Since the 1970s, with the deepening of research, the preparation technology of aluminum nitride has become more and more mature, and the scope of application has also continued to expand. Especially since the beginning of the 21st century, with the rapid development of microelectronics technology, electronic machines and electronic components are developing in the direction of miniaturization, light weight, integration, high reliability and high power output.

Aluminum Nitride Properties

structure

Aluminum nitride (AlN) is a covalently bonded hexagonal wurtzite compound with lattice parameters A=3.114 and C=4.986. Pure aluminum nitride is blue-white, usually gray or off-white, and is a typical iii-v wide-bandgap semiconductor material.

performance

Aluminum nitride (AlN) has the characteristics of high strength, high volume resistivity, high insulation withstand voltage, thermal expansion coefficient, and good matching with silicon. It is not only used as a sintering agent or strengthening phase for structural ceramics, especially in recent years in ceramics. In the field of electronic substrates and packaging materials, its performance is far superior to that of alumina.

Application of Aluminum Nitride AlN Powder

Aluminum nitride (AlN) is a diamond-like nitride inorganic non-metallic material with good thermal conductivity and low thermal expansion coefficient. It is a good thermal shock material. It has strong corrosion resistance to molten metal, and is an ideal crucible material for casting pure iron, aluminum or aluminum alloy. Aluminum nitride is also an electrical insulator with good dielectric properties and also has good application prospects in the field of electrical component manufacturing.

1. Manufacture of integrated circuit substrates, electronic devices, optical devices, heat sinks, high temperature crucibles to prepare metal-based and high-fraction-based composite materials

2. Thermally conductive silicon and thermally conductive epoxy resin.

3. Nano-lubricants and anti-wear agents.

4. High thermal conductivity plastic

Due to the piezoelectric properties of AlN, epitaxially grown thin-film crystalline aluminum nitride is used for surface acoustic wave sensors (SAW) deposited on silicon wafers. One application is radio frequency filters widely used in mobile phones, known as thin film bulk acoustic resonators (FBARs). This is a MEMS device that uses aluminum nitride sandwiched between two metal layers.

AlN is also used to build piezoelectric micromachined ultrasound transducers, which transmit and receive ultrasound, and can be used for aerial ranging at distances of up to one meter.

Aluminum Nitride AlN Powder Price

The price of aluminum nitride AlN powder will change randomly with the production cost of aluminum nitride AlN powder, transportation cost, international situation, exchange rate, market supply and demand and other factors. Tanki New Materials Co., Ltd. aims to help industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for Aluminum Nitride AlN Powder, please feel free to send an inquiry to get the latest price of Aluminum Nitride AlN Powder.

Aluminum Nitride AlN Powder Supplier

As a global supplier of Aluminum Nitride AlN powders, Tanki New Materials Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (molybdenum disilicide), lanthanum nitride (LaN powder, calcium silicide, iron boride), high-purity targets, functional ceramics and structural devices, and provides OEM services.

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