It's a subframe sword. There's no way to make TTAN or other things glow, as in a regular blade becomes energized, so I opted for a "lightsaber" instead of a "power sword." Those who play Warhammer 40K know what a power sword is.
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Can TUNG glow blue though?
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Use TUNG, heated to about 3000C-ish. It glows, and you can - somewhat - alter the colour by changing the temperature