Nickel-based superalloys are the most widely used. The main reason is that, one is that more alloying elements can be dissolved in the nickel-based alloy, and it can maintain good structural stability
The crystal development of natural graphite is relatively complete, the graphitization degree of natural flake graphite is usually above 98,, and the graphitization degree of natural microcrystalline graphite is usually below 93,.
Fitch Ratings has raised its metals and mining price assumptions, reflecting increased post-pandemic demand, tight markets and short-term supply disruptions, particularly due to the Russia-Ukraine conflict. Some commodities also benefit from increased longer-term demand due to their role in global decarbonisation. Copper is the only commodity where we increased our long-tern assumptions due its use .
Russian coal merchants are proving to be the winners as European buyers, nervous a feared Russian invasion of Ukraine could lead to disrupted gas supplies, stock up on the dirtiest fossil fuel. Despite Europe’s ambitions to reduce carbon emissions to net zero by the middle of the century, which means weaning itself off all fossil .