A bit of oven development in progress...
#OtherSemiconductors #79 #SystemsThatMatter
Drilling for rock salt in Germany, early 19th century.
#OtherSemiconductors #79 #SystemsThatMatter
Testing ways to mount heater wire that will hopefully not result in tripping the fuses.
#OtherSemiconductors #79 #SystemsThatMatter
Yesterday was the opening of the first ever Research Days organized at KASK&Conservatorium in Ghent, loosely structured around the topic of play. The image is bad picture of Luanda Casella's great presentation during the first panel.
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In a week, I will give a lecture-performance under the title "The Salt Transistor", sharing some of my research for the installation #79 that I hope to produce in the coming year as a response to a commission by Werktank in Leuven.
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Building things takes time, but we're getting there.
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Lo and finally behold: this somehow cute-looking but still untested see-through oven !
#OtherSemiconductors #79 #SystemsThatMatter
Whole new dimensions of fiddlyness; finally managed to pass those weird and stiff high-temperature and high-voltage resistant wires through several layers of that soft and brittle ceramic fiber board without causing too much damage.
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Finished also the software for the much needed oven controller and it all seems to work as expected. Next step will be to finish building that oven...
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Finally got around to finishing the hardware of this much needed oven controller. Tomorrow I hope to finish the software and if the fuses arrive I can even test...
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Being into real artificial crystals now - not virtual - I really should reread it.
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So far in this research project I have not produced any images or texts of note, but I did build a number of niche power supplies and thermostats. (This one is getting there).
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Somehow I didn't expect a 1907 book by Otto Lehmann on liquid crystals to have plenty of small and beautiful colour images.
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DIY-ing this was perhaps not a great idea from the start, but once I was sure, I might as well finish it.
#OtherSemiconductors #79 #SystemsThatMatter
Things always take more time, but at least the measuring and displaying of temperatures up to 1200 C seems to now work in principle.
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Due to previous life choices I find myself building this cute see-through oven prototype. A whole new level of fiddly: unfamiliar and funny materials and none of my familiar construction methods allowed due to risk of meltdown.
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Today I learned some things about thermocouples and how to measure high temperatures. Hard to test anything at this stage though.
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Finally reading this:
#OtherSemiconductors #71.1 #SystemsThatMatter
Like in many languages, the Dutch word for potassium is 'kali', from the Arab القالِي, al-qaly, for calcinated ashes. This is strange, because the English word 'potassium' comes from the Dutch 'potas': ash in a pot.
#OtherSemiconductors #79 #SystemsThatMatter
I got this book because of one (long) chapter, but ended up reading it from cover to cover.
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Figuring out how to build things that resist high temperatures: no glue, no solder, no plastic, no tape; only ceramics, glass, copper and steel.
#OtherSemiconductors #79 #SystemsThatMatter
Not yet tested and calibrated, but almost fully assembled: a power supply that is variable between 100V and 1100V. One of the ingredients of the 1930s experiment that I am trying to re-enact.
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Part of the proceedings today was finishing the housing of the 1KV power supply, which took ages. Next is assembling the internals.
#OtherSemiconductors #79 #SystemsThatMatter
Just in: the state of the art in 1962 concerning the synthesis of large single crystals.
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Slowly figuring out some 1KV power supply monitoring and switching: in orange the voltage in V and in blue (roughly) the current in mA.
#OtherSemiconductors #79 #SystemsThatMatter
An overview of the various methods to artificially grow crystals, from 2014.
#OtherSemiconductors #79 #SystemsThatMatter
The proceedings of the first symposium on the history of semiconductors, held in 1979 when most of the people involved in the beginning were still around.
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Fortunately I was able to repair this fairly scary 1KV power supply.
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A fairly scary 24V in 1KV out power supply taken from a mass spectrometer.
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Same day: this great 700-page tome in the mail !
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