氮化硅陶瓷基板

描述

氮化硅陶瓷基板(Silicon Nitride Ceramic Substrate)

氮化硅(Si₃N₄)陶瓷基板是一种具备超高强度卓越耐高温性能的先进陶瓷材料。通过热压烧结(Hot Press)工艺制造的氮化硅,是目前已知硬度最高、热稳定性最强的结构陶瓷之一,可在高达1200°C的工作温度下保持强度稳定,分解温度高达1900°C。其高致密性和结构完整性使其非常适用于极端工况下的高性能应用。

氮化硅陶瓷基板的物理性能参数

性能参数 数值范围或说明
材料组成 Si₃N₄
晶体结构 M6相结构
成型工艺 热压烧结(Hot Press)
密度(g/cm³) 3.20 ± 0.02
相对密度 (%) 99.50
莫氏硬度 9.0 – 9.5
熔点(℃) 1900
热导率(W/m·K) 15 – 20
热膨胀系数(×10⁻⁶/°C) 2.8 – 3.2(温度范围:20~1000°C)

材料特点

  • 极高强度:在高温环境下仍保持出色的力学性能

  • 优异热稳定性:适用于1200°C以上长期工况

  • 高致密结构:热压工艺保证低孔隙率与稳定结构

  • 低热膨胀系数:适配热冲击和高精度应用

  • 耐腐蚀性强:抗酸碱、抗氧化性能良好,适用于严苛化学环境

应用领域

氮化硅陶瓷基板因其独特性能,广泛应用于:

  • 高温结构件与支撑部件

  • 功率模块散热与电绝缘底板

  • 航空发动机、燃气轮机零部件

  • 半导体设备与真空设备中的耐高温绝缘部件

  • 高强度、耐腐蚀工业精密器件

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常见问题

Sputtering targets are materials used in thin-film deposition processes to create coatings on substrates. They are used in industries like semiconductors, optics, photovoltaics, and electronics.

Evaporation materials are used in Physical Vapor Deposition (PVD) processes, where materials are heated and evaporated to form a thin film on a substrate. These are critical for applications in optics, wear protection, and decorative coatings.

Boat crucibles are used as containers for evaporation materials during PVD processes. They help to uniformly evaporate materials onto the substrate for thin film formation.

Sputtering uses energetic particles to eject material from a target, while evaporation involves heating a material until it vaporizes and deposits on a substrate. Both are common methods in Physical Vapor Deposition (PVD) for creating thin films.

Consider the material composition, purity, target size, and application-specific requirements such as the thickness and uniformity of the film.

Yes, we offer customized sputtering targets, evaporation materials, and crucibles to meet specific customer requirements for size, material composition, and purity.

Yes, we can assist in selecting the most suitable material based on your application, whether it’s for optical coatings, semiconductor fabrication, or decorative finishes.

Yes, we offer both bulk and small quantities of sputtering targets, evaporation materials, and spherical powders to support research, prototyping, and development projects.