Mark Sims wrote:
Nope, tantalums make horrible fuses. Their standard failure mode is to turn into a room temperature superconductor...
I agree. The can however act as fuse-activators. Also, they make great hidden flaw generator that keeps the machines comming in for repairs after guarantee period, so there is some revenue comming from that department too.
Even low temperature (as in classical superconductor temperatures) superconductors act like fuses when they are not supposed to. I think the CERN folks learned that last winter.
The high-temperature superconductor I made was happy with liquid nitrogen. Those where the days. I have finally forgot the detailed recepy, but I think I could figure it out. Yttrium, Barium and obscene amounts of Oxygene as I recall it. I think we used Bariumcarbonite. Yttriumoxide and Copperoxide, but I don't recall exactly. The only extreme things around for making it was the oven and the luxury of having Oxygene tubes standing around. Measuring the proportions took a good scale but then it was kitchen stuff to grind them together... just alot of manual work. Then pressure it into a small coin-sized pellet. Oh, the platinumplates we used for the ovenwork was nice...
Cheers, Magnus _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
