Керамический лист из нитрида алюминия
- Категория: Электротехническая керамика >>>
- Поставщик: Xiamen,Unipretec,Ceramic,Technology,Co.,Ltd.
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Описание и отзывы
Трекер стоимости
| Месяц | Минимальная цена | Макс. стоимость |
|---|---|---|
| Sep-16-2025 | 0.51 $* | 0.68 $* |
| Aug-16-2025 | 0.2 $* | 0.73 $* |
| Jul-16-2025 | 0.37 $* | 0.55 $* |
| Jun-16-2025 | 0.76 $* | 0.43 $* |
| May-16-2025 | 0.44 $* | 0.61 $* |
| Apr-16-2025 | 0.47 $* | 0.50 $* |
| Mar-16-2025 | 0.72 $* | 0.56 $* |
| Feb-16-2025 | 0.92 $* | 0.62 $* |
| Jan-16-2025 | 0.68 $* | 0.33 $* |
Характеристики
Material Introduction
When it comes to providing good thermal conductivity and high electrical insulation features, aluminum nitride substrate is a superb option because of its efficacy. Aluminum nitride sheets are widely used in the semiconductor application industry instead of beryllium oxide (BeO) since aluminium nitride is non-toxic and does not produce dangerous vapors when grinded and machined. Aluminum nitride ceramic substrate has a thermal expansion and isolation coefficient which closely matches the silicon wafer product, making it useful in applications in electronics that often have high temperatures and heat dissipation problems.
Aluminum nitride ceramic sheet is readily oxidized on the surface. When this occurs, aluminum oxide is formed as a protective film. Nevertheless, when using alumina, you are trying your best to preserve the material, however, it affects the thermal conductivity. When in oxidizing environment, which takes place around 700 degree C. In inert environment, this coating is used to cover aluminum nitride plate up to around 1,350 degree C. The bulk oxidation can take place above this temperature. Aluminum nitride ceramic is one of the few materials that provides both electrical insulation and excellent heat conductivity. Aluminum nitride (AlN) sheet is essential in high power electronic applications in heat sink and heat spreader devices, owing to its unusually high thermal conductivity.
Aluminum nitride ceramic sheet is readily oxidized on the surface. When this occurs, aluminum oxide is formed as a protective film. Nevertheless, when using alumina, you are trying your best to preserve the material, however, it affects the thermal conductivity. When in oxidizing environment, which takes place around 700 degree C. In inert environment, this coating is used to cover aluminum nitride plate up to around 1,350 degree C. The bulk oxidation can take place above this temperature. Aluminum nitride ceramic is one of the few materials that provides both electrical insulation and excellent heat conductivity. Aluminum nitride (AlN) sheet is essential in high power electronic applications in heat sink and heat spreader devices, owing to its unusually high thermal conductivity.
Product Features
√ fast delivery | √ low thermal expansion | √ high thermal conductivity |
√ high working temperature | √ good metalization capacity | √ excellent electrical insulation |
√ CTE close to that of Silicon (Si) | √ corrosion and erosion resistant | ... |
Material Properties
ITEM | UNIT | Aluminum Nitride | AlN |
Main Content | - | AlN > 95% |
Color | - | Grey |
Density | g/cm3 | 3.30 |
Water Absorption | % | 0 |
Surface Roughness (Ra) | um | 0.3 - 0.6 |
Flexural Strength | Mpa | 440 |
Thermal Conductivity (25 ℃) | W/m.K | > 170 |
Thermal Expansion Coefficient (25 - 300 ℃) | 10-6 mm/℃ | 2 - 3 |
Thermal Expansion Coefficient (300 - 800 ℃) | 10-6 mm/℃ | 2.5 - 3.5 |
Max. Working Temperature | ℃ | 1,200 |
Dielectric Strength | KV/㎜ | > 17 |
Dielectric Constant | 1 MHz | 17 |
Electrical Resistivity (25 ℃) | Ω·cm | > 1014 |
Applications
About Us
UNIPRETEC is a representative technical ceramic company in China. Relying on the technical team with more than 10 years of experience and the cooperation of well-known domestic colleges and institutions, our company covers the manufacturing and sales of oxide, nitride and carbide ceramic products. Based on the research in the advanced ceramic industry, our company is good at providing suitable products and suggestions flexibly according to customers' applications and needs. For many years, our company has focused on meeting the needs of customers from all over the world. Many praises from customers and partners have been encouraging UNIPRETEC to move forward and develop.
"Simple things into very complex, can find new areas; Read the complex phenomenon is very simple, can be found that the new law." - - - - - -Isaac Newton
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