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Post by lawson on Mar 8, 2017 2:52:16 GMT
I do find it odd that we don't have Barium Titanate or other ferroelectric ceramics to use in our capacitors. en.wikipedia.org/wiki/Dielectric_strength has an interesting table on dialectric strength. Though the exact strength appears to be highly dependent on thickness, material purity, surface prep, etc. Wiki shows diamond at 2 GV/m so the Hafnia properties in the game aren't totally crazy. (still probably impractical to achieve in a cubic meter capacitor...) Wowie. I'll put that up in suggestions if you don't have any objections. Diamond's dielectric strength ingame is rendered as "10."; I did wonder why it didn't show up as a capacitor material. Performance seems to actually be slightly lower than hafnia, but it's much cheaper and lighter. Read Wikipedia's reference for Diamond first. The 2GV/m strength might be for <1nm thick films or some other impractical situation. |
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Post by vegemeister on Mar 8, 2017 2:52:58 GMT
Sand blaster coilguns have been made great again:  I still haven't been able to figure out capacitor coilguns, so this one accelerates its projectiles over a very long distance. Slightly thicker than necessary barrel armor aids heat dissipation and gives it ultra-low dispersion. Range is 6.83 km against 0.016 m^2 targets, which means it can shoot an apple off your head at that distance. 480 rounds per second burst, 344 sustained. For some reason, I was able to get the turn rate all the way to 50 °/s without adding appreciable mass. I think the moment of inertia calculation might be treating barrel armor incorrectly. It works fairly well for shooting down missiles, but even though it can switch targets pretty much instantly, the current gunlaying system makes it fairly easy to overwhelm with large swarms and fast intercepts. Here's a battery of 5 of them slowly chewing through an up-armored gunship to get at the last radiator on the other side:  |
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Post by newageofpower on Mar 8, 2017 3:18:35 GMT
Diamond's dielectric strength ingame is rendered as "10."; I did wonder why it didn't show up as a capacitor material. Performance seems to actually be slightly lower than hafnia, but it's much cheaper and lighter. So... Correct implementation of Diamond capacitors would be twice as good as Hafnia? |
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Post by The Astronomer on Mar 8, 2017 3:23:32 GMT
Diamond's dielectric strength ingame is rendered as "10."; I did wonder why it didn't show up as a capacitor material. Performance seems to actually be slightly lower than hafnia, but it's much cheaper and lighter. So... Correct implementation of Diamond capacitors would be twice as good as Hafnia? Diamond does show in my game as a capacitor material. Currently, I used a mod diamond which fix its dielectric strength to 2000. I call it 'diamondoid' for a reason. |
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Post by David367th on Mar 8, 2017 3:53:53 GMT
So... Correct implementation of Diamond capacitors would be twice as good as Hafnia? Diamond does show in my game as a capacitor material. Currently, I used a mod diamond which fix its dielectric strength to 2000. I call it 'diamondoid' for a reason. Does diamond have benefits over Hafnia? |
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Post by The Astronomer on Mar 8, 2017 4:03:50 GMT
Diamond does show in my game as a capacitor material. Currently, I used a mod diamond which fix its dielectric strength to 2000. I call it 'diamondoid' for a reason. Does diamond have benefits over Hafnia? Stock diamond sucks, but in the wiki page diamond has 2x dielectric strength compared to stock hafnia. |
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Post by dragonkid11 on Mar 8, 2017 4:36:06 GMT
THIS IS THE PLOT OF THE HOMEWORLD GEM TO MAKE UA DEPENDED ON THEM. DO NOT TRU-
User has been exterminated for spreading false information, move along.
But really, if diamond can be used as capacitor with that dielectric constant. Even if it's just as good as hafnia, it will still be a cheaper and lighter weight option.
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Post by Rocket Witch on Mar 8, 2017 4:37:19 GMT
Read Wikipedia's reference for Diamond first. The 2GV/m strength might be for <1nm thick films or some other impractical situation. Unfortunately the reference is no longer available. It leads to a site but not the actual pdf. Did find this record, though I can't tell if the film capactitors they tested means that's what they were developing for diamond usage: www.osti.gov/scitech/biblio/230155-dielectric-strength-diamondlike-carbon-dlc-thin-films-energy-storage-capacitorsI can't find a source for hafnia either which is already sitting in the game with the value it has... and Q used the highest point of the range for polyethylene. Optimism! So... Correct implementation of Diamond capacitors would be twice as good as Hafnia? Does diamond have benefits over Hafnia? As I said: "Performance seems to actually be slightly lower than hafnia, but it's much cheaper and lighter." That is, yes I did give my diamond 2GV/m and this is how it turned out, but 2GV/m may not be correct. |
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Post by someusername6 on Mar 8, 2017 4:47:09 GMT
I do find it odd that we don't have Barium Titanate or other ferroelectric ceramics to use in our capacitors. en.wikipedia.org/wiki/Dielectric_strength has an interesting table on dialectric strength. Though the exact strength appears to be highly dependent on thickness, material purity, surface prep, etc. Wiki shows diamond at 2 GV/m so the Hafnia properties in the game aren't totally crazy. (still probably impractical to achieve in a cubic meter capacitor...) Wowie. I'll put that up in suggestions if you don't have any objections. Diamond's dielectric strength ingame is rendered as "10."; I did wonder why it didn't show up as a capacitor material. Performance seems to actually be slightly lower than hafnia, but it's much cheaper and lighter. I also found that, and got very excited about it... and then basically found no references that confirm it, a broken wikipedia link, and other references that list it as 10 as is on the game. |
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Post by The Astronomer on Mar 8, 2017 4:59:19 GMT
All leads to the single question: what is the dielectric strength of diamond?
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Post by David367th on Mar 8, 2017 5:00:28 GMT
All leads to the single question: what is the dielectric strength of diamond? Didn't someone say 2GV/m? |
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Post by The Astronomer on Mar 8, 2017 5:04:23 GMT
All leads to the single question: what is the dielectric strength of diamond? Didn't someone say 2GV/m? They said 2GV/m is discredited. |
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Post by David367th on Mar 8, 2017 5:08:18 GMT
Didn't someone say 2GV/m? They said 2GV/m 2 is discredited. 1MV/cm from www.cvd-diamond.com/properties_en.htmI'm actually finding very different results from different sources some said 10MV/cm some say 1MV/mm. |
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Post by The Astronomer on Mar 8, 2017 5:10:29 GMT
1MV/cm 100MV/m that's still not very good, but at least it's usable. |
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Post by Argopeilacos on Mar 8, 2017 8:33:16 GMT
I'm actually finding very different results from different sources some said 10MV/cm some say 1MV/mm. Actually 10MV/cm is the same as 1MV/mm. |
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