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  1. ratmanovtd

    Al2O3 laser machining on Rofin CO2 laser machine

    Good day! I have an Rofin-Sinar laser CNC machine with 10.6 um wavelength (60W, 1-100 kHz) and I trying to cut the details (compensators) from 1mm thick sheet (20x40mm) of polycrystalline alumina (Al2O3). But what I have: poly corundum (polycrystalline alumina) sheets have cracks and breaks by...
  2. ratmanovtd

    Why silicon is graphitization?

    thant's exactly what I want! Thanks!
  3. ratmanovtd

    Why silicon is graphitization?

    Explain: as you know silicon promotes graphitization in cast irons, so the question is - how and why silicon helps to release of carbon (graphitization) in solid solutions?

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