TRUNNANO Launches Silicon Nitride-Silicon Carbide Ceramic Products, Leading a New Breakthrough in Industrial Refractory Materials

Core Insights - TRUNNANO has successfully achieved large-scale production and commercial application of silicon nitride-silicon carbide ceramic products, which are recognized for their high-temperature stability, thermal shock resistance, and wear and corrosion resistance, making them essential in various industries including metallurgical, environmental, energy, and ceramics [1] Technical Breakthroughs - The company has overcome the challenge of achieving both high hardness and high toughness in materials by developing a microstructural design that allows for the in-situ growth of silicon nitride into a flexible reinforcement network within silicon carbide, enabling "heterogeneous toughening" [3] - TRUNNANO has also addressed the balance between high-temperature strength and thermal shock resistance by optimizing material composition and sintering processes, resulting in a material that maintains strength at high temperatures while effectively managing thermal stresses [4][5] Performance Metrics - The silicon nitride bonded silicon carbide ceramics have a silicon carbide content of 75%, a maximum operating temperature of 1500°C, a density of 2.75 g/cm³, and a porosity of 11% [6] - The flexural strength is recorded at 165 MPa at 20°C and 175 MPa at 1200°C, with an elastic modulus of 250 GPa at 20°C, and thermal conductivity of 38 W/m·k at 20°C and 20 W/m·k at 1200°C [6] Manufacturing Process - The performance advancements are achieved through a stable reaction sintering process, which is precisely controlled to ensure uniform formation of the silicon nitride binder phase and strong bonding between silicon carbide particles, resulting in minimal dimensional variation and high yield [7] - The company can control the material's porosity between 11%-18%, which is crucial for maintaining strength while alleviating internal stresses, facilitating the production of large and complex workpieces [7] Company Overview - TRUNNANO is a high-tech enterprise focused on the development and commercialization of nanomaterials and high-end ceramic products, committed to technological innovation and quality service, thereby gaining global customer trust [8]