Re: Strontium
Strontium ferrite fridge magnet
Another household item
Magnetism is not strong leading to its own ceramic destruction
Like this one
Unintentionally missed out
The barium/titanium could be from the
By
taray singh
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#1668
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Re: Pigment Discovery in Rusted CDV 715 Geiger Counter
That’s a pretty strong Pb. The Lb is almost as strong as the La and even showing the Lg
Dud
Sent: Thursday, March 20, 2025 2:56 AM
To: [email protected]
Subject: Re: [XRF-Page-2] Pigment
By
Dude
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#1666
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Re: Pigment Discovery in Rusted CDV 715 Geiger Counter
After my recent experience analyzing yellow/orange pigments with XRF, I examined my rusted, painted CDV 715 Geiger counter. Years ago, I left batteries inside it, which caused severe corrosion. This
By
taray singh
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#1665
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Pigment Discovery in Rusted CDV 715 Geiger Counter
Text to follow..
By
taray singh
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#1664
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Re: Strontium
Mca files for strontium green florescent powder and bread? xrf
By
taray singh
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#1663
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Re: Strontium
Strontium is found in
1 Dietary intake of bread and canned seafood etc
Seafood Sr like Ca is limited mainly to the bones?
2 Strontium supplements?
Controversial?
Sr is a bone seeking
By
taray singh
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#1662
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Strontium
Text to follow
By
taray singh
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#1660
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Re: Demagnetized Nd and Nd oxide powder
Here is an xrf and visible reflectance for Nd magnet and Nd oxide powder?
1 Nd magnet was derusted and demagnetized by sandpaper and flame torch heating.This magnet rust is likely from??uncoated
By
taray singh
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#1655
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Demagnetized Nd and Nd oxide powder
The edited version? text to follow..
By
taray singh
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#1654
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Re: Praseodymium
Here’s the didymium neodymium comparison spectra for those that missed it and a paper on Pr separations with some spectra.
Dud
Sent: Thursday, March 6, 2025 10:14 AM
To:
By
Dude
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#1648
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Re: Praseodymium
That is certainly something to keep in mind when looking at instrument data vs the eyeball.
Dud
Sent: Wednesday, March 5, 2025 6:46 AM
To: [email protected]
Subject: Re: [XRF-Page-2]
By
Dude
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#1645
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Re: Praseodymium
Typo
Meant broad reflectance over green and yellow?
Since on this point,something to ponder .
The??green Pr oxide reflectance also covers red
This is not unexpected bearing in mind issues with
By
taray singh
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#1644
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Re: Praseodymium
Dude
Here is? a pic and Sgd? file for? green oxide layer of 99.9 %? pure Pr? element,
Using tungsten halogen light reflectance spectrum,
Besides the 447 nm ref dip,there is broad absorption
By
taray singh
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#1643
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Re: nitinol in guide wires
This simple annealing??procedure is??useful??for those??unfamiliar?
The Al thin sheet??cools within??a minute amaintaining the softness .
By
taray singh
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#1641
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Re: Praseodymium
Hers’s an overlay of Nd and Didymium oxide (mix of Pr and Nd oxide). Note the difference at 444.57 nm. I can send you some rare earth oxides to run. Let me know your address
Dud
Sent: Tuesday,
By
Dude
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#1640
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Praseodymium
This Pr is a? green oxide when exposed? to air.
Historically from a yellow pigment? to modern? technology
By
taray singh
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#1639
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Re: nitinol in guide wires
Peter
Here is the edited? medical guidewire xrf
It is used prior to railroading a soft catheter over it and the wire subsequently removed
On paper it is made of nitinol (Nickel titanium alloy)
Super
By
taray singh
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#1638
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Re: nitinol in guide wires
nice testing. I always ask my dentist for my old gold crowns when they are replaced. he is nice enough to give me a copy of the data sheet showing it? composition.
p
By
peter
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#1633
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Re: Xrf tableware
https://chsopensource.org/pigments-checker/
Those interested in getting free inorganic pigment databases for?
Xrf in DppMca?format
Reflectance spectroscopy?
Others
Head over to the above
By
taray singh
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#1628
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I've canceled my insurance
My Rn-222 is about 2pCi/l right now but I think I'll wait and see in another
3 or 4 decades or so before canceling the insurance. Should I sue the
builder? Just asking for a friend.
Dud
Life
By
Dude
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#1626
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