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Eutectic salts for heating bath alternative
T=132 C at NaCl-KCl-AlCl3 mole fraction of 36%-14%-50%.
T=91 C at NaCl-KCl-AlCl3 mole fraction of 2 ... |
3-2-2024 at 14:58
by: Twospoons |
Eutectic salts for heating bath alternative
[url=https://www.energy.gov/eere/solar/articles/halide-and-oxy-halide-eutectic-systems-high-performa ... |
2-2-2024 at 15:30
by: Twospoons |
Vacuum valve suggestions required
Needle valves are commonly used for gas and vacuum work. Aliexpress is full of them (at modest price ... |
29-1-2024 at 00:13
by: Twospoons |
The Action Lab video about negative Kelvin temperature violates laws of thermodynamics ?
Its not really true you can achieve 'any temperature you want'. Focusing a laser beam using a lens h ... |
25-1-2024 at 13:03
by: Twospoons |
Multiple bad experiences with AliExpress
Just want to add the one thing I'd never buy from Aliexpress is power semiconductors. Its too easy t ... |
21-1-2024 at 14:31
by: Twospoons |
Multiple bad experiences with AliExpress
Aliexpress can be rather hit and miss. I've had good stuff and bad. Mostly it comes down to vetting ... |
21-1-2024 at 13:53
by: Twospoons |
Titanium dioxide
How about making a Ti[sub]4[/sub]O[sub]7[/sub] electrode by partial reduction using C, H[sub]2[/sub] ... |
6-1-2024 at 12:44
by: Twospoons |
Inorganic synthesis using Co2 laser.
HeNe is usually only a few mW, up to maybe 50mW. I have a couple of 2mW HeNe lasers. Being visible, ... |
28-12-2023 at 20:37
by: Twospoons |
Inorganic synthesis using Co2 laser.
I get the odd sense you are unfamiliar in working with lasers. Take extra care, check everything twi ... |
28-12-2023 at 13:38
by: Twospoons |
Inorganic synthesis using Co2 laser.
Quartz will not pass IR from a CO2 laser. Few materials are sufficiently transparent at 10.4um for C ... |
26-12-2023 at 12:41
by: Twospoons |
Inorganic synthesis using Co2 laser.
I suppose its worth mentioning laser safety to casual passers by- especially with IR lasers (no blin ... |
25-12-2023 at 13:35
by: Twospoons |
Do you need an FEL to produce energetics?
I personally have no interest in energetics (I like having fingers), but if I did then it would make ... |
18-12-2023 at 18:18
by: Twospoons |
Step down adjustable buck converter for electrolysis
[rquote=689243&tid=81769&author=yobbo II]
Thanks TwoSpoons but
I put a design into the ... |
6-12-2023 at 13:35
by: Twospoons |
Small scale production of H2SO4 in the amateur lab
I stumbled across this patent https://patents.google.com/patent/US20040234441A1/en describing the co ... |
5-12-2023 at 14:08
by: Twospoons |
Step down adjustable buck converter for electrolysis
For anyone wanting to 'roll-your-own' power supply, Texas Instruments have an online tool called We ... |
4-12-2023 at 12:13
by: Twospoons |
Controlled destruction of phenolic adhesive - advice?
Ah, yes, well we obviously work in very different industries. My issue involves a magnetic card rea ... |
29-11-2023 at 16:38
by: Twospoons |
Controlled destruction of phenolic adhesive - advice?
Worth a try. It certainly works for tinning Litz wire - dipping the wire in NaOH soln then heating w ... |
28-11-2023 at 17:00
by: Twospoons |
Controlled destruction of phenolic adhesive - advice?
We're aware of the limitations of flex pcb and try to adhere to the IPC standards for bend radius .. ... |
27-11-2023 at 18:10
by: Twospoons |
Controlled destruction of phenolic adhesive - advice?
[rquote=688930&tid=159998&author=WGTR]
Is your failure in the copper itself, from something ... |
27-11-2023 at 13:28
by: Twospoons |
Controlled destruction of phenolic adhesive - advice?
We have an issue at work where we need to strip the polyimide layers off a flexible printed circuit ... |
26-11-2023 at 18:47
by: Twospoons |
High Vacuum Systems
As I recall, its common to have a cooled baffle in between the diffusion pump and the vacuum chamber ... |
23-11-2023 at 17:52
by: Twospoons |
Disinfection of rainwater
Do you have a dehumidifier or a condensing clothes dryer? I collect the water from mine for watering ... |
5-11-2023 at 13:59
by: Twospoons |
Proper electrode material for arc melting steel
Are you sure its not just the fact that its cast thats resulting in brittleness? Typical steels get ... |
17-9-2023 at 13:01
by: Twospoons |
DIY/cheaply available bandpass optical filters/dichroic mirrors
https://www.youtube.com/watch?v=iwj78pR46zM&ab_channel=AppliedScience
Very interesting video ... |
17-9-2023 at 12:53
by: Twospoons |
How to totally destroy non-stick coating?
[rquote=687428&tid=159863&author=Rainwater] they are magnetic, which means they are not stai ... |
16-9-2023 at 14:26
by: Twospoons |
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