Development of Ultra-High Temperature Ceramics: From Monoliths to Composites

Abstract

Regarding materials development, our studies have been mainly focused on ZrB2-SiC and HfB2-SiC compositions with TaSi2or Y2O3additions using hot pressing and spark plasma sintering. These additives have been used to decrease the sintering temperature and to improve the oxidation resistance. Interesting mechanical properties at room and high temperature have been measured. Moreover, excellent oxidation behaviors have been observed up to 2000-2200°C with Y2O3. Last developments are centered on the manufacturing of ultrahigh temperature ceramic matrix composites (UHTCMC) using slurry infiltration and pyrolysis for example. First results are encouraging.

Effects of alloying ZrB₂(HfB₂)–SiC with tantalum on the structure and resistance to high-temperature oxidation and ablation: A review

“…В работе [40] также наблюдали повышение стойкости к окислению УВТК состава ZrB 2 -20 об. % SiC--20 об.…”

Characterization of Nigerian Zircon Sand and Its Suitability for Different Industrial Applications

“…ing between 0.1% and 40% of zirconium oxide (ZrO 2 ) content before beneficiation and removal of other impurities. This suggests that zircon sand from the various mining regions must be upgraded to the minimum purity, composition, and SG using gravity, magnetic, and electrostatic separation techniques before they can be used for preliminary composite formulation in the aerospace industry and other applications, such as cement, tiles, and building and construction, among others [4][5][6][7][8]13,30,73,74]. Prior to being utilized for the main applications, some of the impurities must be removed through the separation techniques mentioned above to increase the weight percentage of ZrO 2 in the samples.…”

“…The aerospace industry seeks to operate its planes as effectively as possible, lowering fuel consumption and reducing environmental impact [3]. Millions of Dollars are spent on developing advanced materials in designing more efficient engines and improving manufacturing procedures to reduce waste and environmental impact [3][4][5][6][7][8]. Manufacturing parts with lightweight, rough-terrain-capable materials is a key efficiency strategy [3].…”

Zirconia Enrichment of Zircon from Arikya, Nasarawa State, Nigeria, by Magnetic and Gravity Separation Processes for Use as Reinforcing Agent in Composite Formulation

“…Different cast materials (metals, polymers, and natural fibers) reinforced with particulates of zircon acting as reinforcing agents are being studied for various applications, especially in the aerospace industry where the material's lightweight and the ability to withstand high temperatures and harsh environments are the basic considerations. In the aerospace industry, materials that can function in oxidizing or corrosive atmospheres at temperatures higher than 2000 • C and sometimes, for a long lifetime are needed for nozzles, rocket and hypersonic vehicle components, re-entry vehicles, engine components, and leading-edge applications [14]. Zirconia-reinforced composite is one example of such material [14][15][16].…”

“…In the aerospace industry, materials that can function in oxidizing or corrosive atmospheres at temperatures higher than 2000 • C and sometimes, for a long lifetime are needed for nozzles, rocket and hypersonic vehicle components, re-entry vehicles, engine components, and leading-edge applications [14]. Zirconia-reinforced composite is one example of such material [14][15][16]. Other applications of zircon and its concentrate include the fabrication of ceramic membranes, the development of passive energy-saving systems, fuel cells and batteries, nanomaterials, optical materials, electronics, and solid-state devices.…”