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Zirconia Ceramic Parts For High-temperature melt flow control in Iron and steel smelting

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  High-temperature zirconia materials, due to their comprehensive “thermal shock resistance,” “corrosion resistance,” “high-temperature strength” and “erosion resistance,” have become key materials for ensuring the safe, efficient, and continuous operation of modern steel continuous casting processes. In particular, their application in core components such as continuous casting nozzles, which control the flow of high-temperature melt, brings benefits such as improved production stability, reduced accident rates, and improved product quality.   Below are some product examples:   1.Sizing Nozzle: A sizing nozzle is a high-temperature structural ceramic functional device installed at the bottom of the continuous casting tundish. Its main function is to maintain a relatively constant static pressure of molten steel in the tundish. Molten steel flows into the crystallizer via the sizing nozzle. The crystallizer uses high-flow-rate water cooling to remove the heat released dur...

AlN Ceramic Substrates: The Key to Stable, High-Speed Optical Modules

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With the continuous upgrading of data centers, AI computing power, and high-speed communication networks, optical modules are rapidly evolving towards higher bandwidth, higher integration, and smaller package sizes. From 100G, 400G to 800G and even 1.6T optical modules, the power density within a unit volume has been continuously rising. The heat generated by lasers and modulators has become a critical limiting factor affecting system performance.   Inside the optical module, the laser diode (LD) chip, high-power modulators (such as EML), and related driver circuits are extremely sensitive to operating temperature. Once the heat dissipation capacity is insufficient, it may cause wavelength drift, output power attenuation, and increase the aging speed of the device, thereby affecting the long-term reliability of the optical module and the stability of network operation.   Core solution: High-performance aluminum nitride ceramic heat dissipation substrate Aluminum nitride (AlN) ...

Advantages of Boron Nitride Crucibles in High-Temperature and High-Purity Applications

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Hexagonal boron nitride is an excellent self-lubricating ceramic capable of withstanding extremely high temperatures while maintaining its lubricating properties, even in high-vacuum environments. Boron nitride (BN) crucibles are typically manufactured from hot-pressed boron nitride blanks, ensuring high density and structural integrity. Mechanically, hexagonal boron nitride behaves similarly to graphite, but it offers the additional advantage of outstanding electrical insulation.   Compared with graphite crucibles, BN crucibles exhibit significantly lower risk of carbon contamination and demonstrate greater chemical inertness in many high-temperature processes. In comparison with alumina crucibles, BN crucibles show lower wettability to molten metals, making them especially suitable for applications that demand high purity and minimal interaction between the melt and the container. While different crucible materials are optimized for different process conditions, the appropriate s...

Beyond Light Blocking: Anti-Static Advantages of Black Alumina Ceramics in Optoelectronic Packaging

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As optical communication, LiDAR, and high-precision optoelectronic detection systems evolve toward higher power and greater integration density, they place higher demands on the performance of optoelectronic packaging materials. The increase in device power brings challenges in heat dissipation and high-temperature stability, while the improvement in integration density raises the risks of internal stray light interference and electrostatic discharge (ESD), directly affecting system reliability and signal-to-noise ratio. Traditional white alumina has limitations in optical control, and conventional ESD protection solutions often fail to be perfectly compatible with high gas-tightness and high thermal conductivity packaging systems.   Based on the high mechanical strength, thermal conductivity, and excellent insulation properties of black  alumina ceramics , the material achieves a multi-functional integration of optical control, thermal management, and on-chip electrostatic di...

Boron Nitride Evaporation Boats: Ideal Ceramic Components for High-Temperature Vacuum Applications

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The boron nitride evaporation boat (BN evaporation boat) is a high-temperature device made of high-purity hexagonal   boron nitride ceramics . It is usually in a boat shape or custom-made, and can hold various evaporation materials. During use, it not only serves as a container for holding molten materials but also maintains the cleanliness and stability of the working environment. Unlike ordinary ceramic components, the BN evaporation boat possesses both structural strength and chemical inertness, and can be used stably for a long time under extreme conditions.     The comprehensive advantages of materials and techniques   (1) Core material: High-purity hexagonal boron nitride   High-purity h-BN serves as the first line of defense to ensure process cleanliness. Its purity is ensured not to have any impurities precipitate at high temperatures, fundamentally eliminating the pollution caused by the vessel, maintaining extremely high purity of the evaporated materi...