dartin Member

  • Member since Oct 11th 2015
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  • dartin

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    When I prepare the equipment should I do it in a glove box? Must the glove box be filled with inert gas?
  • dartin

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    (Quote from Desireless)

    I was considering doing the same thing. The leads to the sheath heater might need some ceramic insulation to withstand the heat.
  • dartin

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    (Quote from Alan Smith)

    Precisely. It is comments like "When a cell is left with no nickel reactant for several weeks, pressure does not change significantly." This project is going to take a lot of patience.
  • dartin

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    My first question is why normal vacuum design has been ignored in this case. For example, typically the path from the system to the turbo molecular pump is typically much larger and the reason for this is discussed in detail in books on this subject…
  • dartin

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    (Quote from Alan Smith)

    I did not find a used one so I thought that I would buy it new.
  • dartin

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    (Quote from Alan Smith)

    What do you think of my obtaining the Extorr XT100 Residual Gas Analyzer which would provide me with a Pirani vacuum gauge for lower vacuum values and a Bayard-Alpert gauge for the higher vacuum levels. In addition, I get a…
  • dartin

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    (Quote from Dr Richard)

    This is what would be nice to find out from Mizuno.
  • dartin

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    Note that most of the heat is now opposite the nickel mesh and it is done without needing to extend the electrical wires to the heater inside the reactor where it is very hot.
    The heater rod that I ordered has leads that are only good to 350 deg C. If…
  • dartin

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    Picture the problem of providing a heater that puts most of its heat in the center third of the reactor. To do this, take a 2000 mm heater and fold it back and forth eight folds with each segment being 200 mm long. This leaves a 200 mm lead to reach…
  • dartin

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    (Quote from magicsound)

    They say that "there are no shipping methods to my address" (USA)
  • dartin

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    (Quote from Drummer)

    Do you think that they are purposefully keeping it secret so only they can reproduce?
    There are patents and then there are trade secrets.
  • dartin

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    In addition to knowing more about the heater configuration, I would like to know more about the successful replication that occurred in Japan. How similar were the parts?
    Did he use the same heater? Did he bend it the same way? How about everything…
  • dartin

    Like (Post)
    (Quote from Riom)

    This is why I mentioned in a prior comment that we need to know and If possible adcquire the same exact heater. Unfortunately the Japanese vendor does not specify much about it specially with regards of the material of what is made in…
  • dartin

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    (Quote from THHuxleynew)

    Duly noted. BTW, I was rereading Nuclear Transmutation last night and noticed a comment on page xxi: 'When T.H. Huxley learned of the theory of natural selection, he reportedly exclaimed: "Why didn't I think of that!"'
  • dartin

    Like (Post)
    (Quote from dartin)


    I have also been in contact with vacuum vessel manufacturers. Rather than weld the CF flanges to the tubing myself, I have asked for quotes (from 3 manufacturers) for the finished assembly (generally known as a "nipple") plus the…
  • dartin

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    (Quote from JedRothwell)

    I will add copper to the design.
  • dartin

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    (Quote from dartin)

    Oops, I mean $5.10 each.
    And the pipe is $148.75
  • dartin

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    (Quote from Alan Smith)

    I will calibrate the units to give equal readings.
  • dartin

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    (Quote from bang99)

    I will provide SolidWorks drawings of my unit.
  • dartin

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    Please add two copper gaskets:
    Copper Gaskets for ConFlat connections:
    ancorp.com/product-category/cf-wire-seal-flanges-and-fittings/hardware-seals/cf-copper-gaskets/
    at $51 each.