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    heat-resistant tagged posts

    Seashell-inspired Shield Protects Materials in Hostile Environments

    May 4, 2022, Categories  Chemistry/Nanotechnology

    SEM A and STEM B cross sectional image showing the 5-layered nanocomposite structure with alternate silica and carbon black layers after heating treatment at more than 800 °C. B HAADF image and intensity profiles for carbon and silicon show the interfaces between substrate and coated silica layers on the right and the sugar-derived carbon layer between two silica layers on the left. The thickness of the carbon layer is estimated to be ~ 10–20 nm based on the spike of carbon signal. Credit: MRS Advances (2022). DOI: 10.1557/s43580-022-00245-y

    Environmentally friendly coating outperforms conventional materials...

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    Making some of the World’s most Durable Materials Corrosion-Resistant

    May 26, 2016, Categories  Technology/Electronics, Chemistry/Nanotechnology

    corrosion chain

    Borides are hard, heat-resistant materials, often used for coating structures that will have to withstand high temperatures and high-pressure environments. But even the best borides are susceptible to oxidation — the chemical reaction that causes corrosion and rusting.

    Borides are among the hardest and most heat-resistant substances on the planet, but their Achilles’ Heel, like so many materials’, is that they oxidize at high temperatures. Oxidation is the chemical reaction commonly known as corrosion or rusting — it can signal the end for a material’s structural integrity...

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