3 ms·

Actual publication linked is very readable: https://pubs.rsc.org/en/content/articlelanding/2024/se/d3se01228j https://pubs.rsc.org/en/content/articlelanding/202

by jval43 2y ago

Actual publication linked is very readable: https://pubs.rsc.org/en/content/articlelanding/2024/se/d3se01228j https://pubs.rsc.org/en/content/articlelanding/2024/se/d3se0...

johndough 2y ago
I'd like to point out row 3 of the excellent Fig. 6 where the authors evaluate the risk of fine iron powder being exposed to air, which heats up to about 600°C due to oxidation. https://pubs.rsc.org/image/article/2024/se/d3se01228j/d3se01228j-f6_hi-res.gif https://pubs.rsc.org/image/article/2024/se/d3se01228j/d3se01...
- erickj 2y ago
  I believe most Swiss scientific investigations are legally required to involve Cervelat
  - HeatrayEnjoyer 2y ago
    What is it?
    - micwag 2y ago
      The national sausage of Switzerland: https://en.wikipedia.org/wiki/Cervelat https://en.wikipedia.org/wiki/Cervelat
  - lta 2y ago
    This is one of the most absurd comment I've read in a while. I love it, thank you. Fwiw, cervelat is also very common in France, I grew up eating that stuff. Maybe that's why I liked the article so much. There's something to dig up there
- pfdietz 2y ago
  Fires are one of the risks of so-called Direct Reduced Iron. The product has high surface area which leads to fast oxidation. https://www.metallics.org/dri.html https://www.metallics.org/dri.html > Being a highly reduced material, DRI has a tendency to re-oxidise, an exothermic reaction. Thus, without appropriate precautions being taken in its handling, transport and storage, there is a risk of self-heating and fires. The International Maritime Organisation's International Maritime Solid Bulk Cargoes Code classifies DRI - Direct Reduced Iron (B) - as Group B (cargo with chemical hazard) and class MHB (material hazardous only in bulk) and requires that DRI be shipped under an inert atmosphere, usually nitrogen. It would be nice if the iron could be in an alloy that, in addition to being oxidized/reduced, could further absorb hydrogen when in the reduced state. FeTi absorbs hydrogen, but I don't think the titanium would withstand repeated oxidation/reduction cycles. The Ti would go to the +4 oxidation state and stay there.

by jval43 2y ago

Actual publication linked is very readable: https://pubs.rsc.org/en/content/articlelanding/2024/se/d3se01228j https://pubs.rsc.org/en/content/articlelanding/2024/se/d3se0...

johndough 2y ago

I'd like to point out row 3 of the excellent Fig. 6 where the authors evaluate the risk of fine iron powder being exposed to air, which heats up to about 600°C due to oxidation. https://pubs.rsc.org/image/article/2024/se/d3se01228j/d3se01228j-f6_hi-res.gif https://pubs.rsc.org/image/article/2024/se/d3se01228j/d3se01...

erickj 2y ago
I believe most Swiss scientific investigations are legally required to involve Cervelat
- HeatrayEnjoyer 2y ago
  What is it?
  - micwag 2y ago
    The national sausage of Switzerland: https://en.wikipedia.org/wiki/Cervelat https://en.wikipedia.org/wiki/Cervelat
- lta 2y ago
  This is one of the most absurd comment I've read in a while. I love it, thank you. Fwiw, cervelat is also very common in France, I grew up eating that stuff. Maybe that's why I liked the article so much. There's something to dig up there
pfdietz 2y ago
Fires are one of the risks of so-called Direct Reduced Iron. The product has high surface area which leads to fast oxidation. https://www.metallics.org/dri.html https://www.metallics.org/dri.html > Being a highly reduced material, DRI has a tendency to re-oxidise, an exothermic reaction. Thus, without appropriate precautions being taken in its handling, transport and storage, there is a risk of self-heating and fires. The International Maritime Organisation's International Maritime Solid Bulk Cargoes Code classifies DRI - Direct Reduced Iron (B) - as Group B (cargo with chemical hazard) and class MHB (material hazardous only in bulk) and requires that DRI be shipped under an inert atmosphere, usually nitrogen. It would be nice if the iron could be in an alloy that, in addition to being oxidized/reduced, could further absorb hydrogen when in the reduced state. FeTi absorbs hydrogen, but I don't think the titanium would withstand repeated oxidation/reduction cycles. The Ti would go to the +4 oxidation state and stay there.