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The alloy exhibits a higher creep resistance and strength at high temperatures, making service temperatures of above 1060 °C possible for the material. The high resistivity of Mo-30W, an alloy of 70% molybdenum and 30% tungsten, against the attack of molten zinc makes it the ideal material for casting zinc. It is also used to construct valves ...
Ultra-high-temperature ceramics (UHTCs) are a type of refractory ceramics that can withstand extremely high temperatures without degrading, often above 2,000 °C. [1] They also often have high thermal conductivities and are highly resistant to thermal shock, meaning they can withstand sudden and extreme changes in temperature without cracking or breaking.
The incompressibility of a material is quantified by the bulk modulus B, which measures the resistance of a solid to volume compression under hydrostatic stress as B = −Vdp/dV. Here V is the volume, p is pressure, and dp/dV is the partial derivative of pressure with respect to the volume.
The oxidation resistance and the thermo-mechanical properties of these materials can be improved by incorporating a fraction of about 20-30% of UHTC phases, e.g., ZrB 2, into the matrix. [ 8 ] On the one hand CMCs are lightweight materials with high strength-to-weight ratio even at high temperature, high thermal shock resistance and toughness ...
This results in a very tough material, with the highest impact strength of any thermoplastic presently made. [2] UHMWPE is odorless, tasteless, and nontoxic. [3] It embodies all the characteristics of high-density polyethylene (HDPE) with the added traits of being resistant to concentrated acids and alkalis, as well as numerous organic solvents ...
Cobalt-cermet-based coatings consisting of materials such as tungsten carbide/cobalt can be used due to excellent resistance to abrasion, corrosion, erosion, and heat. [ 60 ] [ full citation needed ] These cermet coatings perform well in situations where temperature and oxidation damage are significant concerns, such as boilers.