Call Us! 818-899-0236 Home About Services SDS / Tech Sheets Materials 101 News Contact Get a Quote Layered Hafnium Carbide/Silicon Carbide Hard, wear-resistant, chemically inert, chemically resistant, and nearly impervious to hydrogen at high temperatures, refractory carbides can be formed by chemical vapor deposition at temperatures as low as 10% of their melting point. Ultramet offers the following materials, along with other carbides, nitrides, and silicides: Advantages Higher use temperature than silicon carbide or silicon nitride in an oxidizing environment because a highly stable and protective hafnium silicate forms at the surface Survivability demonstrated through hot-gas testing at NASA Ames, NASA Johnson, and Arnold Engineering Development Center Protection to 3270°F (1799°C) for extended periods (hours) and to >3800°F (2093°C) for shorter periods Zero ablation demonstrated at heat flux levels up to 320 Btu/ft2 · sec (363 W/m2); ablation rate of 0.0002 in/sec (5 µm /sec) was measured at 525 Btu/ft2 · sec (595 W/m2) No visible damage in rain erosion testing up to 500 ft/sec relative velocity and 90° angle of attack Low thickness required (0.003–0.005″); >0.020″ thickness possible High emissivity (0.8–0.85) leads to a 300–500°F (159– 260ºC) reduction in surface temperature relative to alternative ceramics tested at the same heat flux SEM image of polished cross-section of Ultramet HfC/SiC coating (1500×) showing layered structure CONTACT AN EXPERT Photographs of Ultra2000-coated C/C nosetip during and after 300 second arcjet test performed at NASA Ames Research Center. Explore More Learn More about related products and services. Ultrahigh Temperature Ceramic Coatings Layered Hafnium Carbide/Silicon Carbide Refractory Carbides Refractory Oxides High-Reflectivity Coatings Coatings for Electronic Devices CONTACT AN EXPERT Services Catalysis Ceramic Matrix Composites Ceramic Protective Coatings Refractory Carbides Layered Hafnium Carbide/Silicon Carbide Refractory Oxides Ultrahigh Temperature Ceramic Coatings High-Reflectivity Coatings Chemical Vapor Deposition (CVD) Fiber Interface Coatings Propulsion System Components Refractory Metal Coatings & Freestanding Structures Refractory Open-Cell Foams Rhenium Raw Material Thermal Protection Systems ABOUT Ultramet, a California corporation, develops advanced materials solutions for government and commercial markets driven by extreme environments and high performance. Ultramet devises the manufacturing methods to produce the desired components and manufactures or licenses said components with a commitment to quality and reproducibility. ADDRESS 12173 Montague Street, Pacoima CA 91331 Telephone: 818-899-0236 Fax: 818-890-1946 Email: mail@ultramet.com GET QUOTEJOB INQUIRIES SUBSCRIBE Sign up to receive the latest news and information on Ultramet products and services. Copyright 2021 Ultramet | Powered by GrossiWeb ISO 9001:2015 CERTIFIED